GNSS reflectometer receiver interference test methods and related products

Abstract

The invention provides a global navigation satellite system reflectometer receiver interference test method and related products, the method comprising: disconnecting a reflector antenna from a receiver, and controlling a standard positioning signal simulation output subsystem to send a first simulation signal to a positioning antenna when different interference sources to be detected are running; determining an interference source that interferes with the receiver according to first real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the first simulation signal; connecting the reflector antenna and the positioning antenna to the global navigation satellite system reflectometer receiver, and controlling the standard positioning signal simulation output subsystem to send a second simulation signal to the positioning antenna when different interference sources to be detected are running; and determining an interference source that interferes with the global navigation satellite system reflectometer receiver according to second real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the second simulation signal.

Description

Technical Field

[0001] The present invention relates to the technical field of global navigation satellite system reflectometer receivers, and in particular to a global navigation satellite system reflectometer receiver interference test method and related products; wherein the related products include a global navigation satellite system reflectometer receiver reflected signal interference test system, a global navigation satellite system reflectometer receiver interference test device and a computer-readable storage medium. Background Art

[0002] The Global Navigation Satellite System (GNSS) is a system designed to use navigation signals for positioning, navigation and timing. During the gradual development of the system, researchers discovered that the navigation signal, after being reflected from the ground or water surface, can carry relevant information about the reflecting surface, thereby being able to infer the relevant physical parameters of the reflecting surface, thus forming GNSS remote sensing technology.

[0003] Among them, GNSS-R (Global Navigation Satellite System Reflectometry) technology has been a popular research direction in recent years. This technology uses navigation satellite signals to receive reflected signals from different areas such as land and sea through satellite-borne, airborne or shore-based receiving platforms. It then uses inversion algorithms to extract relevant environmental parameters and detect sea surface wind fields, soil moisture, sea ice, etc.

[0004] However, due to the GNSS signal system, its transmission power is lower than the noise power; after being reflected by the ground or water surface, the power loss caused by the reflection surface and the power loss caused by the increase in propagation distance further reduce the power of the reflected signal. The receiver needs a high sensitivity design to receive weak reflected signals. However, the high sensitivity of the receiver will make the receiver susceptible to interference. At present, there is an urgent need for a solution to test the interference of the receiver. Summary of the invention

[0005] In view of the above problems, a global navigation satellite system reflectometer receiver interference test method and related products are proposed to overcome the above problems or at least partially solve the above problems, including:

[0006] A global navigation satellite system reflectometer receiver interference test method is applied to a global navigation satellite system reflectometer receiver reflection signal interference test system, the global navigation satellite system reflectometer receiver reflection signal interference test system comprises a standard positioning signal simulation output subsystem and a global navigation satellite system reflectometer receiver subsystem, the global navigation satellite system reflectometer receiver subsystem comprises a positioning antenna, a reflection antenna and a global navigation satellite system reflectometer receiver, the method comprises:

[0007] Controlling the reflection antenna to be disconnected from the global navigation satellite system reflectometer receiver, connecting the positioning antenna to the global navigation satellite system reflectometer receiver, and controlling the standard positioning signal simulation output subsystem to send a first simulation signal to the positioning antenna when different interference sources to be detected are running;

[0008] determining, according to first real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the first simulation signal, an interference source that interferes with the global navigation satellite system reflectometer receiver;

[0009] Controlling the reflection antenna and the positioning antenna to be connected to the global navigation satellite system reflectometer receiver, and controlling the standard positioning signal simulation output subsystem to send a second simulation signal to the positioning antenna when different interference sources to be detected are running;

[0010] An interference source causing interference to the global navigation satellite system reflectometer receiver is determined according to second real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the second simulation signal.

[0011] Optionally, the working environment of the global navigation satellite system reflectometer receiver also includes at least one other device, the first simulation signal includes a first positioning signal and a second positioning signal, and the controlling the standard positioning signal simulation output subsystem to send the first simulation signal to the positioning antenna includes:

[0012] When the other devices are turned off, controlling the standard positioning signal simulation output subsystem to send the first positioning signal to the positioning antenna;

[0013] When the other devices are turned on, the standard positioning signal simulation output subsystem is controlled to send the second positioning signal to the positioning antenna.

[0014] Optionally, determining an interference source causing interference to the global navigation satellite system reflectometer receiver according to first real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the first simulation signal includes:

[0015] determining whether there is an interference source inside the global navigation satellite system reflectometer receiver according to first real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the first positioning signal;

[0016] And, according to the first real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the second positioning signal, the interference source outside the global navigation satellite system reflectometer receiver is determined from the at least one other device.

[0017] Optionally, judging whether there is an interference source inside the global navigation satellite system reflectometer receiver according to first real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the first positioning signal includes:

[0018] Extracting first noise data from first real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the first positioning signal;

[0019] It is determined whether there is an interference source inside the global navigation satellite system reflectometer receiver according to the first noise data and first reference data set for the first positioning signal.

[0020] Optionally, judging whether there is an interference source inside the global navigation satellite system reflectometer receiver according to the first noise data and first reference data set for the first positioning signal includes:

[0021] Determine a first mean and a first variance according to the first noise data, and determine a first test value according to the first mean and the first variance;

[0022] It is determined whether there is an interference source inside the global navigation satellite system reflectometer receiver according to the first test value and the first reference data.

[0023] Optionally, determining a first test value according to the first mean and the first variance includes:

[0024] The first test value is determined according to the following formula:

[0025] ;

[0026] in, is the first test value, is the first mean, is the first variance, is the first noise data.

[0027] Optionally, judging whether there is an interference source inside the global navigation satellite system reflectometer receiver according to the first test value and the first reference data includes:

[0028] When the first test value does not match the first reference data, determining that an interference source exists inside the global navigation satellite system reflectometer receiver;

[0029] When the first test value matches the first reference data, it is determined that no interference source exists inside the global navigation satellite system reflectometer receiver.

[0030] Optionally, the global navigation satellite system reflectometer receiver includes a plurality of reflection channels, and the determining whether there is an interference source inside the global navigation satellite system reflectometer receiver according to first real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the first positioning signal;

[0031] For a target reflection channel, determining first real-time data output by the target reflection channel based on the first positioning signal;

[0032] It is determined whether there is an interference source for the target reflection channel inside the global navigation satellite system reflectometer receiver according to first real-time data output by the target reflection channel based on the first positioning signal.

[0033] Optionally, the global navigation satellite system reflectometer receiver includes a plurality of reflection channels, and determining, from the at least one other device, an interference source external to the global navigation satellite system reflectometer receiver according to first real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the second positioning signal, comprises:

[0034] For a target reflection channel, determining first real-time data output by the target reflection channel based on the second positioning signal;

[0035] According to the first real-time data output by the target reflection channel based on the second positioning signal, an external interference source for the target reflection channel is determined from the at least one other device.

[0036] Optionally, determining an interference source external to the global navigation satellite system reflectometer receiver from the at least one other device according to first real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the second positioning signal comprises:

[0037] Extracting second noise data from first real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the second positioning signal;

[0038] It is determined whether the at least one other device is an external interference source to the global navigation satellite system reflectometer receiver according to the second noise data and second reference data set for the second positioning signal.

[0039] Optionally, the working environment of the global navigation satellite system reflectometer receiver also includes at least one other device, the second simulation signal includes a third positioning signal and a fourth positioning signal, and the controlling the standard positioning signal simulation output subsystem to send the second simulation signal to the positioning antenna includes:

[0040] When the other devices are turned off, controlling the standard positioning signal simulation output subsystem to send the third positioning signal to the positioning antenna;

[0041] When the other devices are turned on, the standard positioning signal simulation output subsystem is controlled to send the fourth positioning signal to the positioning antenna.

[0042] Optionally, determining an interference source causing interference to the global navigation satellite system reflectometer receiver according to second real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the second simulation signal includes:

[0043] determining whether there is an interference source inside the global navigation satellite system reflectometer receiver according to second real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the third positioning signal;

[0044] And, according to second real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the fourth positioning signal, an interference source external to the global navigation satellite system reflectometer receiver is determined from the at least one other device.

[0045] Optionally, judging whether there is an interference source inside the global navigation satellite system reflectometer receiver according to second real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the third positioning signal includes:

[0046] extracting third noise data from second real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the third positioning signal;

[0047] It is determined whether there is an interference source inside the global navigation satellite system reflectometer receiver according to the third noise data and third reference data set for the third positioning signal.

[0048] Optionally, judging whether there is an interference source inside the global navigation satellite system reflectometer receiver according to the third noise data and third reference data set for the third positioning signal includes:

[0049] Determine a third mean and a third difference according to the third noise data, and determine a third test value according to the third mean and the third difference;

[0050] It is determined whether there is an interference source inside the global navigation satellite system reflectometer receiver according to the third test value and the third reference data.

[0051] Optionally, determining a third test value according to the third mean and the third difference includes:

[0052] The third test value is determined according to the following formula:

[0053] ;

[0054] in, is the third test value, is the third mean, For third party differences, is the third noise data.

[0055] Optionally, judging whether there is an interference source inside the global navigation satellite system reflectometer receiver according to the third test value and the third reference data includes:

[0056] When the third test value does not match the third reference data, determining that an interference source exists inside the global navigation satellite system reflectometer receiver;

[0057] When the third test value matches the third reference data, it is determined that no interference source exists inside the global navigation satellite system reflectometer receiver.

[0058] Optionally, the global navigation satellite system reflectometer receiver includes a plurality of reflection channels, and the second real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the third positioning signal is used to determine whether there is an interference source inside the global navigation satellite system reflectometer receiver;

[0059] For a target reflection channel, determining second real-time data output by the target reflection channel based on the third positioning signal;

[0060] It is determined whether there is an interference source for the target reflection channel inside the global navigation satellite system reflectometer receiver according to second real-time data output by the target reflection channel based on the third positioning signal.

[0061] Optionally, the global navigation satellite system reflectometer receiver includes a plurality of reflection channels, and determining, from the at least one other device, an interference source external to the global navigation satellite system reflectometer receiver according to second real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the fourth positioning signal, comprises:

[0062] For a target reflection channel, determining second real-time data output by the target reflection channel based on the fourth positioning signal;

[0063] According to the second real-time data output by the target reflection channel based on the fourth positioning signal, an external interference source for the target reflection channel is determined from the at least one other device.

[0064] Optionally, determining an interference source external to the global navigation satellite system reflectometer receiver from the at least one other device according to second real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the fourth positioning signal comprises:

[0065] extracting fourth noise data from second real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the fourth positioning signal;

[0066] It is determined whether the at least one other device is an external interference source to the global navigation satellite system reflectometer receiver according to the fourth noise data and fourth reference data set for the fourth positioning signal.

[0067] Optionally, the method further comprises:

[0068] Interference sources that are interfering with the global navigation satellite system reflectometer receiver are indicated.

[0069] The present invention also provides a global navigation satellite system reflectometer receiver reflection signal interference test system, the global navigation satellite system reflectometer receiver reflection signal interference test system comprises: a standard positioning signal simulation output subsystem, a global navigation satellite system reflectometer receiver subsystem, and a data control and analysis subsystem; the global navigation satellite system reflectometer receiver subsystem comprises a positioning antenna, a reflection antenna and a global navigation satellite system reflectometer receiver; the global navigation satellite system reflectometer receiver subsystem comprises a positioning antenna, a reflection antenna and a global navigation satellite system reflectometer receiver, wherein:

[0070] The data control and analysis subsystem is used to control the reflection antenna to be disconnected from the global navigation satellite system reflectometer receiver, connect the positioning antenna to the global navigation satellite system reflectometer receiver, and control the standard positioning signal simulation output subsystem to send a first simulation signal to the positioning antenna; determine the interference source that interferes with the global navigation satellite system reflectometer receiver according to the first real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the first simulation signal; control the reflection antenna and the positioning antenna to be connected to the global navigation satellite system reflectometer receiver, and control the standard positioning signal simulation output subsystem to send a second simulation signal to the positioning antenna; determine the interference source that interferes with the global navigation satellite system reflectometer receiver according to the second real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the second simulation signal.

[0071] Optionally, the data control and analysis subsystem includes:

[0072] A data processing server, used for controlling the reflection antenna to be disconnected from the global navigation satellite system reflectometer receiver, connecting the positioning antenna to the global navigation satellite system reflectometer receiver, and controlling the standard positioning signal simulation output subsystem to send a first simulation signal to the positioning antenna; determining an interference source for the global navigation satellite system reflectometer receiver according to first real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the first simulation signal; controlling the reflection antenna and the positioning antenna to be connected to the global navigation satellite system reflectometer receiver, and controlling the standard positioning signal simulation output subsystem to send a second simulation signal to the positioning antenna; determining an interference source for the global navigation satellite system reflectometer receiver according to second real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the second simulation signal;

[0073] An interference display is used to display interference sources to the global navigation satellite system reflectometer receiver.

[0074] Optionally, the standard positioning signal simulation output subsystem includes: a global navigation satellite system simulator and a forwarding antenna;

[0075] The global navigation satellite system simulator is used to send a first simulation signal to the positioning antenna through the repeater antenna in response to the control of the data control and analysis subsystem; and to send a second simulation signal to the positioning antenna through the repeater antenna.

[0076] The present invention also provides a global navigation satellite system reflectometer receiver interference test device, which is applied to a global navigation satellite system reflectometer receiver reflection signal interference test system, wherein the global navigation satellite system reflectometer receiver reflection signal interference test system comprises a standard positioning signal simulation output subsystem and a global navigation satellite system reflectometer receiver subsystem, wherein the global navigation satellite system reflectometer receiver subsystem comprises a positioning antenna, a reflection antenna and a global navigation satellite system reflectometer receiver, and the device comprises:

[0077] a first control module, used for controlling the reflection antenna to be disconnected from the global navigation satellite system reflectometer receiver, connecting the positioning antenna to the global navigation satellite system reflectometer receiver, and controlling the standard positioning signal simulation output subsystem to send a first simulation signal to the positioning antenna;

[0078] A first determination module is used to determine an interference source that interferes with the global navigation satellite system reflectometer receiver according to first real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the first simulation signal;

[0079] A second control module is used to control the reflection antenna and the positioning antenna to be connected to the global navigation satellite system reflectometer receiver, and control the standard positioning signal simulation output subsystem to send a second simulation signal to the positioning antenna;

[0080] The second determination module is used to determine an interference source that interferes with the global navigation satellite system reflectometer receiver according to second real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the second simulation signal.

[0081] Optionally, the working environment of the global navigation satellite system reflectometer receiver also includes at least one other device, the first simulation signal includes a first positioning signal and a second positioning signal, and the first control module is used to control the standard positioning signal simulation output subsystem to send the first positioning signal to the positioning antenna when the other device is turned off; and control the standard positioning signal simulation output subsystem to send the second positioning signal to the positioning antenna when the other device is turned on.

[0082] Optionally, the first determination module is used to determine whether there is an interference source inside the global navigation satellite system reflectometer receiver based on first real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the first positioning signal; and to determine the interference source outside the global navigation satellite system reflectometer receiver from the at least one other device based on the first real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the second positioning signal.

[0083] Optionally, the first determination module is used to extract first noise data from first real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the first positioning signal; and determine whether there is an interference source inside the global navigation satellite system reflectometer receiver based on the first noise data and first reference data set for the first positioning signal.

[0084] Optionally, the first determination module is used to determine a first mean and a first variance based on the first noise data, and to determine a first test value based on the first mean and the first variance; and to determine whether there is an interference source inside the global navigation satellite system reflectometer receiver based on the first test value and the first reference data.

[0085] Optionally, the first determining module is used to determine the first test value according to the following formula:

[0086] ;

[0087] in, is the first test value, is the first mean, is the first variance, is the first noise data.

[0088] Optionally, the first determination module is used to determine that there is an interference source inside the global navigation satellite system reflectometer receiver when the first test value does not match the first reference data; and to determine that there is no interference source inside the global navigation satellite system reflectometer receiver when the first test value matches the first reference data.

[0089] Optionally, the global navigation satellite system reflectometer receiver includes multiple reflection channels, and the first determination module is used to determine, for a target reflection channel, first real-time data output by the target reflection channel based on the first positioning signal; and determine whether there is an interference source for the target reflection channel inside the global navigation satellite system reflectometer receiver according to the first real-time data output by the target reflection channel based on the first positioning signal.

[0090] Optionally, the global navigation satellite system reflectometer receiver includes multiple reflection channels, and the first determination module is used to determine, for a target reflection channel, first real-time data output by the target reflection channel based on the second positioning signal; and determine, from the at least one other device, an external interference source for the target reflection channel based on the first real-time data output by the target reflection channel based on the second positioning signal.

[0091] Optionally, the first determination module is used to extract second noise data from first real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the second positioning signal; and determine whether the at least one other device is an interference source external to the global navigation satellite system reflectometer receiver based on the second noise data and second reference data set for the second positioning signal.

[0092] Optionally, the working environment of the global navigation satellite system reflectometer receiver also includes at least one other device, the second simulation signal includes a third positioning signal and a fourth positioning signal, and the second control module is used to control the standard positioning signal simulation output subsystem to send the third positioning signal to the positioning antenna when the other device is turned off; and control the standard positioning signal simulation output subsystem to send the fourth positioning signal to the positioning antenna when the other device is turned on.

[0093] Optionally, the second determination module is used to determine whether there is an interference source inside the global navigation satellite system reflectometer receiver based on second real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the third positioning signal; and to determine the interference source outside the global navigation satellite system reflectometer receiver from the at least one other device based on the second real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the fourth positioning signal.

[0094] Optionally, the second determination module is used to extract third noise data from second real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the third positioning signal; and determine whether there is an interference source inside the global navigation satellite system reflectometer receiver based on the third noise data and third reference data set for the third positioning signal.

[0095] Optionally, the second determination module is used to determine a third mean and a third difference based on the third noise data, and to determine a third test value based on the third mean and the third difference; and to determine whether there is an interference source inside the global navigation satellite system reflectometer receiver based on the third test value and the third reference data.

[0096] Optionally, the second determining module is used to determine the third test value according to the following formula:

[0097] ;

[0098] in, is the third test value, is the third mean, For third party differences, is the third noise data.

[0099] Optionally, the second determination module is used to determine that there is an interference source inside the global navigation satellite system reflectometer receiver when the third test value does not match the third reference data; and to determine that there is no interference source inside the global navigation satellite system reflectometer receiver when the third test value matches the third reference data.

[0100] Optionally, the global navigation satellite system reflectometer receiver includes multiple reflection channels, and the second determination module is used to determine, for a target reflection channel, second real-time data output by the target reflection channel based on the third positioning signal; and judge whether there is an interference source for the target reflection channel inside the global navigation satellite system reflectometer receiver according to the second real-time data output by the target reflection channel based on the third positioning signal.

[0101] Optionally, the global navigation satellite system reflectometer receiver includes multiple reflection channels, and the second determination module is used to determine, for a target reflection channel, second real-time data output by the target reflection channel based on the fourth positioning signal; and determine, from the at least one other device, an external interference source for the target reflection channel according to the second real-time data output by the target reflection channel based on the fourth positioning signal.

[0102] Optionally, the second determination module is used to extract fourth noise data from second real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the fourth positioning signal; and determine whether the at least one other device is an interference source outside the global navigation satellite system reflectometer receiver based on the fourth noise data and fourth reference data set for the fourth positioning signal.

[0103] Optionally, the device further comprises:

[0104] The display module is used to display interference sources that interfere with the global navigation satellite system reflectometer receiver.

[0105] The present invention also provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the global navigation satellite system reflectometer receiver interference test method as described above is implemented.

[0106] The embodiments of the present invention have the following advantages:

[0107] In an embodiment of the present invention, the global navigation satellite system reflectometer receiver reflection signal interference test system can control the reflection antenna to disconnect from the global navigation satellite system reflectometer receiver, the positioning antenna to connect to the global navigation satellite system reflectometer receiver, and when different interference sources to be detected are running, control the standard positioning signal simulation output subsystem to send a first simulation signal to the positioning antenna; according to the first real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the first simulation signal, determine the interference source that interferes with the global navigation satellite system reflectometer receiver; control the reflection antenna and the positioning antenna to connect to the global navigation satellite system reflectometer receiver, and when different interference sources to be detected are running, control the standard positioning signal simulation output subsystem to send a second simulation signal to the positioning antenna; according to the second real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the second simulation signal, determine the interference source that interferes with the global navigation satellite system reflectometer receiver. Through the embodiment of the present invention, the influence of possible interference sources on the interference of the global navigation satellite system reflectometer receiver can be tested one by one based on the simulated simulation signal, so as to accurately complete the positioning of the interference to the global navigation satellite system reflectometer receiver. BRIEF DESCRIPTION OF THE DRAWINGS

[0108] In order to more clearly illustrate the technical solution of the present invention, the accompanying drawings required for use in the description of the present invention will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0109] Figure 1 is a flowchart of steps of a global navigation satellite system reflectometer receiver interference testing method according to an embodiment of the present invention;

[0110] Figure 2 is a flowchart of another step of a global navigation satellite system reflectometer receiver interference test according to an embodiment of the present invention;

[0111] Figure 3 It is a structural schematic diagram of a global navigation satellite system reflectometer receiver reflected signal interference testing system according to an embodiment of the present invention;

[0112] Figure 4 It is a structural schematic diagram of another global navigation satellite system reflectometer receiver reflected signal interference test system according to an embodiment of the present invention;

[0113] Figure 5 It is a structural schematic diagram of a global navigation satellite system reflectometer receiver interference test device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0114] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0115] In addition to receiving GNSS reflected signals, the GNSS-R reflector antenna can also receive other signals within the receiving frequency range of the reflector antenna. If the power of these signals reaches a certain range, they will interfere with the reflected signal. In order to measure the interference signal, an embodiment of the present invention provides a global navigation satellite system reflectometer receiver reflected signal interference test system and a global navigation satellite system reflectometer receiver interference test method; the global navigation satellite system reflectometer receiver reflected signal interference test system is based on the global navigation satellite system reflectometer receiver interference test method, and can accurately locate the interference source, thereby facilitating subsequent elimination. Specifically, please refer to the following embodiments.

[0116] Reference Figure 1 , showing a step flow chart of a global navigation satellite system reflectometer receiver interference test method of an embodiment of the present invention, which can be applied to a global navigation satellite system reflectometer receiver reflected signal interference test system. The global navigation satellite system reflectometer receiver reflected signal interference test system may include a standard positioning signal simulation output subsystem and a global navigation satellite system reflectometer receiver subsystem.

[0117] The GNSS reflectometer receiver subsystem may include a positioning antenna, a reflector antenna and a GNSS reflectometer receiver. The positioning antenna may be used to receive positioning signals, and the reflector antenna may be used to receive reflected signals.

[0118] like Figure 1 As shown, the global navigation satellite system reflectometer receiver interference test method may include the following steps:

[0119] Step 101, control the reflection antenna to be disconnected from the global navigation satellite system reflectometer receiver, connect the positioning antenna to the global navigation satellite system reflectometer receiver, and control the standard positioning signal simulation output subsystem to send a first simulation signal to the positioning antenna when different interference sources to be detected are running.

[0120] In an embodiment of the present invention, in order to avoid interference from outdoor GNSS signals, a global navigation satellite system reflectometer receiver and related equipment can be set in an indoor test environment; then, the global navigation satellite system reflectometer receiver reflected signal interference test system can first control the reflection antenna to disconnect from the global navigation satellite system reflectometer receiver, and control the positioning antenna to connect to the global navigation satellite system reflectometer receiver.

[0121] When the reflector antenna is disconnected from the GNSS reflectometer receiver and the positioning antenna is connected to the GNSS reflectometer receiver, the standard positioning signal simulation output subsystem can be controlled to simulate and generate a first simulation signal, and when different interference sources to be detected are running, the first simulation signal is sent to the positioning antenna, so as to check the interference of the interference sources to the GNSS reflectometer receiver one by one. Among them, the standard positioning signal simulation output subsystem can be used to simulate the actual working scenario of the GNSS reflectometer receiver according to the position of the GNSS reflectometer receiver and the position of the GNSS satellite, and generate the corresponding first simulation signal. The first simulation signal may refer to a GNSS signal generated by the standard positioning signal simulation output subsystem and sent to the GNSS reflectometer receiver without interference.

[0122] The interference source may be cables inside the global navigation satellite system reflectometer receiver itself, or may be other devices in the indoor test environment, which is not limited in the embodiment of the present invention.

[0123] Step 102: Determine an interference source for the global navigation satellite system reflectometer receiver according to first real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the first simulation signal.

[0124] After receiving the first simulation signal, the positioning antenna can transmit it to the global navigation satellite system reflectometer receiver; the global navigation satellite system reflectometer receiver can output corresponding first real-time data based on the first simulation signal; the first real-time data may include: reflected signal power, reflected signal delay, Doppler frequency shift, related power waveform, signal-to-noise ratio, geometric relationship, timestamp, satellite information and preliminary parameters of the reflecting surface, etc., and the embodiment of the present invention does not limit this.

[0125] In practical applications, if there is no interference, there is a corresponding relationship between the first real-time data and the first simulation signal; otherwise, if there is interference, the corresponding relationship between the first real-time data and the first simulation signal does not hold.

[0126] Based on this, it can be determined based on the first real-time data whether there is interference to the global navigation satellite system reflectometer receiver when the reflective antenna is disconnected, and the source of the interference.

[0127] Specifically, the GNSS reflectometer receiver can be turned on first to detect whether there is internal interference; then other devices in the indoor test environment can be turned on one by one to detect whether other devices will interfere with the GNSS reflectometer receiver from the positioning antenna. In this way, the interference source for the GNSS reflectometer receiver can be determined.

[0128] Step 103: Control the reflection antenna and the positioning antenna to be connected to the global navigation satellite system reflectometer receiver, and control the standard positioning signal simulation output subsystem to send a second simulation signal to the positioning antenna when different interference sources to be detected are running.

[0129] In the embodiment of the present invention, a reflective antenna needs to be connected to detect whether there is interference entering the global navigation satellite system reflectometer receiver from the reflective antenna.

[0130] Specifically, the global navigation satellite system reflectometer receiver reflected signal interference test system can control the reflection antenna and the positioning antenna to be connected to the global navigation satellite system reflectometer receiver.

[0131] Then, the global navigation satellite system reflectometer receiver reflected signal interference test system can control the standard positioning signal simulation output subsystem to generate a second simulation signal, and send the second simulation signal to the positioning antenna when different interference sources to be detected are running. The second simulation signal can refer to a GNSS signal generated by the standard positioning signal simulation output subsystem and sent to the global navigation satellite system reflectometer receiver without interference.

[0132] Step 104: Determine an interference source for the global navigation satellite system reflectometer receiver according to second real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the second simulation signal.

[0133] After receiving the second simulation signal, the positioning antenna may transmit it to the global navigation satellite system reflectometer receiver.

[0134] After receiving the signal output by the reflection antenna and the signal output by the positioning antenna, the global navigation satellite system reflectometer receiver can output corresponding second real-time data; the second real-time data may include: reflection signal power, reflection signal delay, Doppler frequency shift, related power waveform, signal-to-noise ratio, geometric relationship, timestamp, satellite information and preliminary parameters of the reflection surface, etc., and the embodiment of the present invention does not limit this.

[0135] In practical applications, if there is no interference, there is a corresponding relationship between the second real-time data and the second simulation signal; otherwise, if there is interference, the corresponding relationship between the second real-time data and the second simulation signal does not hold.

[0136] In the embodiment of the present invention, since the problem of interference signals accessed by the positioning antenna and the receiver link has been checked in advance, when interference occurs again, it is the reflection antenna connected to the GNSS reflectometer receiver that enters the GNSS reflectometer receiver.

[0137] Based on this, it can be determined whether there is interference to the GNSS reflectometer receiver and the source of the interference.

[0138] Specifically, the GNSS reflectometer receiver can be turned on first to detect whether there is internal interference entering from the reflector antenna; then, when the GNSS reflectometer receiver is turned on, other devices in the indoor test environment are turned on one by one to detect whether other devices will interfere with the GNSS reflectometer receiver from the reflector antenna. In this way, the interference source for the GNSS reflectometer receiver can be determined.

[0139] In practical applications, after determining that there is an interference source for the GNSS reflectometer receiver, a corresponding record may be generated to process the interference source that actually generates the interference. The specific anti-interference processing is not limited in the embodiment of the present invention.

[0140] In an embodiment of the present invention, the global navigation satellite system reflectometer receiver reflection signal interference test system can control the reflection antenna to disconnect from the global navigation satellite system reflectometer receiver, the positioning antenna to connect to the global navigation satellite system reflectometer receiver, and when different interference sources to be detected are running, control the standard positioning signal simulation output subsystem to send a first simulation signal to the positioning antenna; according to the first real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the first simulation signal, determine the interference source that interferes with the global navigation satellite system reflectometer receiver; control the reflection antenna and the positioning antenna to connect to the global navigation satellite system reflectometer receiver, and when different interference sources to be detected are running, control the standard positioning signal simulation output subsystem to send a second simulation signal to the positioning antenna; according to the second real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the second simulation signal, determine the interference source that interferes with the global navigation satellite system reflectometer receiver. Through the embodiment of the present invention, the influence of possible interference sources on the interference of the global navigation satellite system reflectometer receiver can be tested one by one based on the simulated simulation signal, so as to accurately complete the positioning of the interference to the global navigation satellite system reflectometer receiver.

[0141] Reference Figure 2 , shows another global navigation satellite system reflectometer receiver interference test method according to an embodiment of the present invention. Figure 2 As shown, the other global navigation satellite system reflectometer receiver interference test method may include the following steps:

[0142] Step 201: Control the reflection antenna to be disconnected from the global navigation satellite system reflectometer receiver and connect the positioning antenna to the global navigation satellite system reflectometer receiver.

[0143] In an embodiment of the present invention, a global navigation satellite system reflectometer receiver and related equipment may be arranged in an indoor test environment.

[0144] Then, the GNSS reflectometer receiver reflected signal interference test system may first control the reflection antenna to be disconnected from the GNSS reflectometer receiver, and control the positioning antenna to be connected to the GNSS reflectometer receiver.

[0145] Step 202: The working environment of the global navigation satellite system reflectometer receiver also includes at least one other device; when the other devices are turned off, the standard positioning signal simulation output subsystem is controlled to send a first positioning signal to the positioning antenna; when the other devices are turned on, the standard positioning signal simulation output subsystem is controlled to send a second positioning signal to the positioning antenna.

[0146] When the reflecting antenna is disconnected from the global navigation satellite system reflectometer receiver and the positioning antenna is connected to the global navigation satellite system reflectometer receiver, the standard positioning signal simulation output subsystem can be controlled to simulate and generate a first positioning signal, and when other devices are turned off and the global navigation satellite system reflectometer receiver is turned on, the first positioning signal is sent to the positioning antenna, so as to troubleshoot the interference of interference sources inside the global navigation satellite system reflectometer receiver to the global navigation satellite system reflectometer receiver.

[0147] After eliminating the internal interference source, other devices can be turned on one by one, and when other devices are turned on, the standard positioning signal simulation output subsystem is controlled to send the second positioning signal to the positioning antenna.

[0148] Exemplarily, other devices may be turned on one at a time, or the next other device may be turned on after eliminating the interference from the other device, which is not limited in the embodiment of the present invention.

[0149] When other devices are turned on, the time when the other devices are turned on can be recorded; based on the recorded turning-on time, it can correspond to the first real-time data, and then based on the analysis of the first real-time data, it can be determined at what time interference with the global navigation satellite system reflectometer receiver occurs, and then it can be determined which other device interferes with the global navigation satellite system reflectometer receiver.

[0150] Step 203: determine whether there is an interference source inside the global navigation satellite system reflectometer receiver based on first real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the first positioning signal; and determine the interference source outside the global navigation satellite system reflectometer receiver from at least one other device based on the first real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the second positioning signal.

[0151] In some feasible embodiments, after obtaining the first real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the first positioning signal, the global navigation satellite system reflectometer receiver reflected signal interference testing system can determine whether there is an interference source inside the global navigation satellite system reflectometer receiver based on the first real-time data.

[0152] In addition, after obtaining the first real-time data output by the GNSS reflectometer receiver subsystem based on the second positioning signal, the GNSS reflectometer receiver reflected signal interference test system can determine the external interference source of the GNSS reflectometer receiver from at least one other device based on the first real-time data. Specifically, the start-up time of the other interfering device can be determined based on the time corresponding to the first real-time data, thereby determining the external interference source that interferes with the GNSS reflectometer receiver.

[0153] Step 204: Control the reflective antenna and the positioning antenna to connect to the global navigation satellite system reflectometer receiver.

[0154] After troubleshooting the interference entering from the positioning antenna, the global navigation satellite system reflectometer receiver reflected signal interference test system can respectively control the reflection antenna and the positioning antenna to connect with the global navigation satellite system reflectometer receiver to detect the interference entering from the reflection antenna to the global navigation satellite system reflectometer receiver.

[0155] Step 205: When other devices are turned off, control the standard positioning signal simulation output subsystem to send a third positioning signal to the positioning antenna; when other devices are turned on, control the standard positioning signal simulation output subsystem to send a fourth positioning signal to the positioning antenna.

[0156] When the reflecting antenna and the positioning antenna are connected to the global navigation satellite system reflectometer receiver, the standard positioning signal simulation output subsystem can be controlled to simulate and generate a third positioning signal, and when other devices are turned off and the global navigation satellite system reflectometer receiver is turned on, the third positioning signal is sent to the positioning antenna, so as to troubleshoot the interference of interference sources inside the global navigation satellite system reflectometer receiver to the global navigation satellite system reflectometer receiver.

[0157] After eliminating the internal interference source, other devices can be turned on one by one, and when other devices are turned on, the standard positioning signal simulation output subsystem is controlled to send the fourth positioning signal to the positioning antenna.

[0158] Exemplarily, other devices may be turned on one at a time, or the next other device may be turned on after eliminating the interference from the other device, which is not limited in the embodiment of the present invention.

[0159] When other devices are turned on, the time when the other devices are turned on can be recorded; based on the recorded turning-on time, it can correspond to the first real-time data, and then based on the analysis of the first real-time data, it can be determined at what time interference with the global navigation satellite system reflectometer receiver occurs, and then it can be determined which other device interferes with the global navigation satellite system reflectometer receiver.

[0160] Step 206: determine whether there is an interference source inside the global navigation satellite system reflectometer receiver based on second real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the third positioning signal; and determine the interference source outside the global navigation satellite system reflectometer receiver from at least one other device based on second real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the fourth positioning signal.

[0161] In some feasible embodiments, after obtaining the second real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the third positioning signal, the global navigation satellite system reflectometer receiver reflected signal interference testing system can determine whether there is an interference source inside the global navigation satellite system reflectometer receiver based on the second real-time data.

[0162] In addition, after obtaining the second real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the fourth positioning signal, the global navigation satellite system reflectometer receiver reflected signal interference test system can determine the interference source outside the global navigation satellite system reflectometer receiver from at least one other device based on the second real-time data. Specifically, the start-up time of other interfering devices can be determined based on the time corresponding to the first real-time data, thereby determining the external interference source that interferes with the global navigation satellite system reflectometer receiver.

[0163] In one embodiment of the present invention, step 203 may determine whether there is an interference source inside the global navigation satellite system reflectometer receiver through the following sub-steps:

[0164] Sub-step 11: extracting first noise data from first real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the first positioning signal.

[0165] In some feasible embodiments, the first noise data may be firstly extracted from the first real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the first positioning signal.

[0166] Exemplarily, the first real-time data may be DDM (Delay-Doppler Maps) data; and data in an edge region of the first real-time data may be defined as first noise data.

[0167] Sub-step 12: determining whether there is an interference source inside the global navigation satellite system reflectometer receiver according to the first noise data and the first reference data set for the first positioning signal.

[0168] After obtaining the first noise data, it is possible to determine whether there is an interference source inside the global navigation satellite system reflectometer receiver that interferes with the global navigation satellite system reflectometer receiver according to the first noise data and the first reference data pre-set for the first positioning signal. The first reference data can be used to provide a reference, which can be real-time data output by the global navigation satellite system reflectometer receiver when the first positioning signal is received without interference.

[0169] If the first noise data does not match the first reference data, it can be determined that there is an interference source inside the global navigation satellite system reflectometer receiver that interferes with the global navigation satellite system reflectometer receiver. Conversely, if the first noise data matches the first reference data, it can be determined that there is no interference source inside the global navigation satellite system reflectometer receiver that interferes with the global navigation satellite system reflectometer receiver.

[0170] In one embodiment of the present invention, sub-step 12 may be implemented in the following manner:

[0171] A first mean and a first variance are determined according to the first noise data, and a first test value is determined according to the first mean and the first variance; and whether there is an interference source inside the global navigation satellite system reflectometer receiver is judged according to the first test value and the first reference data.

[0172] In some feasible embodiments, the first noise data may include multiple values; after determining the first noise data, a first mean value and a first variance may be determined based on the first noise data, and then a first test value with the reflective antenna disconnected may be calculated based on the first mean value and the first variance.

[0173] After obtaining the first test value, it is possible to determine whether there is an interference source inside the global navigation satellite system reflectometer receiver that interferes with the global navigation satellite system reflectometer receiver according to the first test value and the first reference data. The first reference data may be a theoretical value. For example, the first reference data may be 1000.

[0174] In one example, the first test value may be determined according to the following formula:

[0175] ;

[0176] in, is the first test value, is the first mean, is the first variance, is the first noise data.

[0177] For example, if the first reference data is 1000, then When it is 1000, it means that there is no interference source inside the global navigation satellite system reflectometer receiver that interferes with the global navigation satellite system reflectometer receiver; otherwise, it means that there is an interference source inside the global navigation satellite system reflectometer receiver that interferes with the global navigation satellite system reflectometer receiver.

[0178] In one example, when the first test value does not match the first reference data, it is determined that there is an interference source inside the global navigation satellite system reflectometer receiver; when the first test value matches the first reference data, it is determined that there is no interference source inside the global navigation satellite system reflectometer receiver.

[0179] In an embodiment of the present invention, when the first test value does not match the first reference data, for example, when the first test value is less than the first reference data, it can be determined that there is an interference source inside the global navigation satellite system reflectometer receiver that interferes with the global navigation satellite system reflectometer receiver.

[0180] On the contrary, when the first test value matches the first reference data, for example, when the first test value is equal to the first reference data, it can be determined that there is no interference source inside the GNSS reflectometer receiver that interferes with the GNSS reflectometer receiver.

[0181] In one embodiment of the present invention, the global navigation satellite system reflectometer receiver includes multiple reflection channels, each of which can be used to receive a signal of a frequency; based on this, it can be determined whether there is an interference source inside the global navigation satellite system reflectometer receiver through the following sub-steps:

[0182] Sub-step 21: for a target reflection channel, determining first real-time data output by the target reflection channel based on the first positioning signal.

[0183] Taking any reflection channel as a target reflection channel, first real-time data output by the target reflection channel based on the first positioning signal may be determined first.

[0184] Sub-step 22: judging whether there is an interference source for the target reflection channel inside the global navigation satellite system reflectometer receiver according to the first real-time data output by the target reflection channel based on the first positioning signal.

[0185] Then, for the target reflection channel, it is possible to determine whether there is an interference source for the target reflection channel inside the global navigation satellite system reflectometer receiver based on the first real-time data output by the target reflection channel based on the first positioning signal. The determination of whether there is an interference source based on the first real-time data can refer to the above embodiment, which will not be repeated here.

[0186] In one embodiment of the present invention, the interference source outside the global navigation satellite system reflectometer receiver may be determined from at least one other device by the following sub-steps:

[0187] Sub-step 31: for a target reflection channel, determining first real-time data output by the target reflection channel based on the second positioning signal.

[0188] In practical applications, for a target reflection channel, first real-time data output by the target reflection channel based on the second positioning signal may be determined.

[0189] Sub-step 32: determining an external interference source for the target reflection channel from at least one other device according to the first real-time data output by the target reflection channel based on the second positioning signal.

[0190] Then, based on the first real-time data outputted by the target reflection channel based on the second positioning signal, it can be determined whether other currently turned on devices interfere with the target reflection channel. If so, it can be determined that the other devices are external interference sources for the target reflection channel.

[0191] On the contrary, if the other currently turned on devices do not interfere with the target reflex channel, it can be determined that the other devices are not external interference sources for the target reflex channel.

[0192] In one embodiment of the present invention, the interference source outside the global navigation satellite system reflectometer receiver may also be determined from at least one other device through the following sub-steps:

[0193] Sub-step 41 : extracting second noise data from first real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the second positioning signal.

[0194] In some feasible embodiments, the second noise data can be extracted from the first real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the second positioning signal; the specific extraction method can refer to the aforementioned method of extracting the first noise data from the first real-time data, and the embodiment of the present invention is not limited to this.

[0195] Sub-step 42: determining, based on the second noise data and the second reference data set for the second positioning signal, whether at least one other device is an interference source external to the global navigation satellite system reflectometer receiver.

[0196] After the second noise data is obtained, it can be determined whether each other device is an external interference source to the global navigation satellite system reflectometer receiver according to the second noise data and the second reference data set for the second positioning signal.

[0197] Specifically, the interference source can be monitored for each other device respectively; that is, each other device corresponds to a second noise data, and based on each second noise data, it can be determined whether each other device interferes with the global navigation satellite system reflectometer receiver through the positioning antenna.

[0198] In one embodiment of the present invention, step 206 may determine whether there is an interference source inside the GNSS reflectometer receiver through the following sub-steps:

[0199] Sub-step 51: extracting third noise data from the second real-time data output by the GNSS reflectometer receiver subsystem based on the third positioning signal. The specific extraction method can refer to the above-mentioned method of extracting the first noise data from the first real-time data, which will not be repeated here.

[0200] In some feasible embodiments, the third noise data may be first extracted from the second real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the third positioning signal.

[0201] Sub-step 52: judging whether there is an interference source inside the global navigation satellite system reflectometer receiver according to the third noise data and the third reference data set for the third positioning signal.

[0202] After obtaining the third noise data, it is possible to determine whether there is an interference source inside the global navigation satellite system reflectometer receiver that interferes with the global navigation satellite system reflectometer receiver according to the third noise data and the third reference data pre-set for the third positioning signal. The third reference data can be used to provide a reference, which can be real-time data output by the global navigation satellite system reflectometer receiver when the third positioning signal is received without interference.

[0203] If the third noise data does not match the third reference data, it can be determined that there is an interference source inside the global navigation satellite system reflectometer receiver that interferes with the global navigation satellite system reflectometer receiver. Conversely, if the third noise data matches the third reference data, it can be determined that there is no interference source inside the global navigation satellite system reflectometer receiver that interferes with the global navigation satellite system reflectometer receiver.

[0204] In one embodiment of the present invention, sub-step 52 may be implemented in the following manner:

[0205] A third mean and a third difference are determined according to the third noise data, and a third test value is determined according to the third mean and the third difference; and whether there is an interference source inside the global navigation satellite system reflectometer receiver is judged according to the third test value and the third reference data.

[0206] In one example, the third test value may be determined according to the following formula:

[0207] ;

[0208] in, is the third test value, is the third mean, For third party differences, is the third noise data.

[0209] In some feasible embodiments, the third noise data may include multiple values; after determining the third noise data, a third mean value and a third difference may be determined according to the third noise data, and then a third test value may be calculated when the reflective antenna is connected according to the third mean value and the third difference.

[0210] After obtaining the third test value, it can be determined whether there is an interference source inside the global navigation satellite system reflectometer receiver that interferes with the global navigation satellite system reflectometer receiver according to the third test value and the third reference data. The third reference data can be a theoretical value. Exemplarily, the third reference data can be 1000.

[0211] In one example, when the third test value does not match the third reference data, it is determined that there is an interference source inside the GNSS reflectometer receiver; when the third test value matches the third reference data, it is determined that there is no interference source inside the GNSS reflectometer receiver.

[0212] In an embodiment of the present invention, when the third test value does not match the third reference data, for example, when the third test value is less than the third reference data, it can be determined that there is an interference source inside the global navigation satellite system reflectometer receiver that interferes with the global navigation satellite system reflectometer receiver.

[0213] On the contrary, when the third test value matches the third reference data, for example, when the third test value is equal to the third reference data, it can be determined that there is no interference source inside the GNSS reflectometer receiver that interferes with the GNSS reflectometer receiver.

[0214] In one embodiment of the present invention, when the reflector antenna and the positioning antenna are connected, the following sub-steps may be used to determine whether there is an interference source inside the global navigation satellite system reflectometer receiver:

[0215] Sub-step 61: for a target reflection channel, determining second real-time data output by the target reflection channel based on the third positioning signal.

[0216] In some feasible embodiments, taking any reflection channel as a target reflection channel, the second real-time data output by the target reflection channel based on the third positioning signal may be determined first.

[0217] Sub-step 62: judging whether there is an interference source for the target reflection channel inside the global navigation satellite system reflectometer receiver according to the second real-time data output by the target reflection channel based on the third positioning signal.

[0218] Then, for the target reflection channel, it is possible to determine whether there is an interference source for the target reflection channel inside the global navigation satellite system reflectometer receiver based on the second real-time data output by the target reflection channel based on the third positioning signal. The determination of whether there is an interference source based on the second real-time data can refer to the above embodiment, which will not be repeated here.

[0219] In one embodiment of the present invention, when the reflector antenna and the positioning antenna are connected, the interference source outside the global navigation satellite system reflectometer receiver can be determined from at least one other device by the following sub-steps:

[0220] Sub-step 71: for a target reflection channel, determine second real-time data output by the target reflection channel based on a fourth positioning signal.

[0221] In practical applications, for a target reflection channel, second real-time data output by the target reflection channel based on the fourth positioning signal may be determined.

[0222] Sub-step 72: determining an external interference source for the target reflection channel from at least one other device according to the second real-time data output by the target reflection channel based on the fourth positioning signal.

[0223] Then, based on the second real-time data outputted by the target reflection channel based on the fourth positioning signal, it can be determined whether other currently turned on devices interfere with the target reflection channel. If so, it can be determined that the other devices are external interference sources for the target reflection channel.

[0224] On the contrary, if the other currently turned on devices do not interfere with the target reflex channel, it can be determined that the other devices are not external interference sources for the target reflex channel.

[0225] In one embodiment of the present invention, the interference source outside the global navigation satellite system reflectometer receiver may also be determined from at least one other device through the following sub-steps:

[0226] Sub-step 81 : extracting fourth noise data from second real-time data output by the global navigation satellite system reflectometer receiver subsystem based on a fourth positioning signal.

[0227] In some feasible embodiments, fourth noise data can be extracted from second real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the fourth positioning signal; the specific extraction method can refer to the aforementioned method of extracting the first noise data from the first real-time data, and the embodiment of the present invention is not limited to this.

[0228] Sub-step 82: determining, based on the fourth noise data and fourth reference data set for the fourth positioning signal, whether at least one other device is an interference source external to the global navigation satellite system reflectometer receiver.

[0229] After the fourth noise data is obtained, it can be determined whether each other device is an external interference source to the global navigation satellite system reflectometer receiver according to the fourth noise data and fourth reference data set for the fourth positioning signal.

[0230] Specifically, the interference source can be monitored for each other device respectively; that is, each other device corresponds to a fourth noise data, and based on each fourth noise data, it can be determined whether each other device interferes with the global navigation satellite system reflectometer receiver through the positioning antenna.

[0231] In one embodiment of the present invention, the following steps may also be included:

[0232] Displays sources of interference that are interfering with the GNSS reflectometer receiver.

[0233] In some feasible embodiments, after the interference sources that interfere with the GNSS reflectometer receiver are determined, these interference sources may be displayed so as to perform interference elimination processing.

[0234] In an embodiment of the present invention, the reflecting antenna is controlled to be disconnected from the global navigation satellite system reflectometer receiver, and the positioning antenna is connected to the global navigation satellite system reflectometer receiver; the working environment of the global navigation satellite system reflectometer receiver also includes at least one other device; when the other devices are turned off, the standard positioning signal simulation output subsystem is controlled to send a first positioning signal to the positioning antenna; when the other devices are turned on, the standard positioning signal simulation output subsystem is controlled to send a second positioning signal to the positioning antenna; based on first real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the first positioning signal, it is determined whether there is an interference source inside the global navigation satellite system reflectometer receiver; and based on the first real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the second positioning signal, from at least one In one embodiment, the invention relates to a method for determining an interference source outside the global navigation satellite system reflectometer receiver from other devices; controlling the reflection antenna and the positioning antenna to be connected to the global navigation satellite system reflectometer receiver; when other devices are turned off, controlling the standard positioning signal simulation output subsystem to send a third positioning signal to the positioning antenna; when other devices are turned on, controlling the standard positioning signal simulation output subsystem to send a fourth positioning signal to the positioning antenna; judging whether there is an interference source inside the global navigation satellite system reflectometer receiver according to the second real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the third positioning signal; and determining the interference source outside the global navigation satellite system reflectometer receiver from at least one other device according to the second real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the fourth positioning signal. Through the embodiment of the present invention, the influence of possible interference sources on the interference of the global navigation satellite system reflectometer receiver can be tested one by one based on the simulated simulation signal, so as to accurately complete the positioning of the interference to the global navigation satellite system reflectometer receiver.

[0235] It should be noted that, for the sake of simplicity, the method embodiments are described as a series of action combinations, but those skilled in the art should be aware that the embodiments of the present invention are not limited by the order of the actions described, because according to the embodiments of the present invention, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions involved are not necessarily required by the embodiments of the present invention.

[0236] Reference Figure 3 , shows a schematic diagram of the structure of a global navigation satellite system reflectometer receiver reflected signal interference test system according to an embodiment of the present invention. The global navigation satellite system reflectometer receiver reflected signal interference test system 30 includes: a standard positioning signal simulation output subsystem 310, a global navigation satellite system reflectometer receiver subsystem 320, and a data control and analysis subsystem 330; the global navigation satellite system reflectometer receiver subsystem 320 includes a positioning antenna 321, a reflection antenna 322, and a global navigation satellite system reflectometer receiver 323.

[0237] The data control and analysis subsystem 330 is used to control the reflection antenna 322 to be disconnected from the global navigation satellite system reflectometer receiver 323, the positioning antenna 321 to be connected to the global navigation satellite system reflectometer receiver 323, and to control the standard positioning signal simulation output subsystem 310 to send a first simulation signal to the positioning antenna 321; determine the interference source for the global navigation satellite system reflectometer receiver 323 according to the first real-time data output by the global navigation satellite system reflectometer receiver subsystem 320 based on the first simulation signal; control the reflection antenna 322 and the positioning antenna 321 to be connected to the global navigation satellite system reflectometer receiver 323, and control the standard positioning signal simulation output subsystem 310 to send a second simulation signal to the positioning antenna 321; determine the interference source for the global navigation satellite system reflectometer receiver 323 according to the second real-time data output by the global navigation satellite system reflectometer receiver subsystem 320 based on the second simulation signal.

[0238] In the embodiment of the present invention, the data control and analysis subsystem 330 may first control the reflection antenna 322 to be disconnected from the global navigation satellite system reflectometer receiver 323 , and control the positioning antenna 321 to be connected to the global navigation satellite system reflectometer receiver 323 .

[0239] When the reflection antenna 322 is disconnected from the global navigation satellite system reflectometer receiver 323 and the positioning antenna 321 is connected to the global navigation satellite system reflectometer receiver 323, the data control and analysis subsystem 330 can control the standard positioning signal simulation output subsystem 310 to simulate and generate a first simulation signal, and when different interference sources to be detected are running, control the standard positioning signal simulation output subsystem 310 to send the first simulation signal to the positioning antenna 321, so as to check the interference of interference sources to the global navigation satellite system reflectometer receiver 323 one by one.

[0240] After receiving the first simulation signal, the positioning antenna 321 may transmit the first simulation signal to the global navigation satellite system reflectometer receiver 323; the global navigation satellite system reflectometer receiver 323 may output corresponding first real-time data based on the first simulation signal.

[0241] In actual applications, the data control and analysis subsystem 330 may first turn on the GNSS reflectometer receiver 323 to detect whether there is internal interference, and then turn on other devices in the indoor test environment one by one to detect whether other devices will interfere with the GNSS reflectometer receiver 323 from the positioning antenna 321. In this way, the interference source for the GNSS reflectometer receiver 323 can be determined.

[0242] In the embodiment of the present invention, the reflective antenna 322 needs to be connected to detect whether there is interference entering the global navigation satellite system reflectometer receiver 323 from the reflective antenna 322 .

[0243] Specifically, the data control and analysis subsystem 330 can control the reflection antenna 322 and the positioning antenna 321 to be connected to the global navigation satellite system reflectometer receiver 323 .

[0244] Then, the data control and analysis subsystem 330 can control the standard positioning signal simulation output subsystem 310 to generate a second simulation signal, and send the second simulation signal to the positioning antenna 321 when different interference sources to be detected are running.

[0245] After receiving the second simulation signal, the positioning antenna 321 may transmit the second simulation signal to the global navigation satellite system reflectometer receiver 323 .

[0246] After receiving the signal output by the reflection antenna 322 and the signal output by the positioning antenna 321 , the GNSS reflectometer receiver 323 may output corresponding second real-time data.

[0247] Since the problem of interference signal access to positioning antenna 321 has been checked in advance, when interference occurs again, it enters from reflector antenna 322. Based on this, data control and analysis subsystem 330 can determine whether interference exists for GNSS reflectometer receiver 323 and the source of the interference.

[0248] Specifically, the data control and analysis subsystem 330 may first turn on the GNSS reflectometer receiver 323 to detect whether there is internal interference entering from the reflector antenna 322; then, when the GNSS reflectometer receiver 323 is turned on, other devices in the indoor test environment are turned on one by one to detect whether other devices will interfere with the GNSS reflectometer receiver 323 from the reflector antenna 322. In this way, the interference source that interferes with the GNSS reflectometer receiver 323 can be determined.

[0249] In practical applications, after determining that there is an interference source for the GNSS reflectometer receiver 323, the data control and analysis subsystem 330 can generate corresponding records to process the interference source that actually generates the interference. The specific anti-interference processing is not limited in the embodiment of the present invention.

[0250] In one embodiment of the present invention, the data control and analysis subsystem 330 includes:

[0251] The data processing server 331 is used to control the reflection antenna 322 to be disconnected from the global navigation satellite system reflectometer receiver 323, the positioning antenna 321 to be connected to the global navigation satellite system reflectometer receiver 323, and control the standard positioning signal simulation output subsystem 310 to send a first simulation signal to the positioning antenna 321; determine the interference source for the global navigation satellite system reflectometer receiver 323 according to the first real-time data output by the global navigation satellite system reflectometer receiver subsystem 320 based on the first simulation signal; control the reflection antenna 322 and the positioning antenna 321 to be connected to the global navigation satellite system reflectometer receiver 323, and control the standard positioning signal simulation output subsystem 310 to send a second simulation signal to the positioning antenna 321; determine the interference source for the global navigation satellite system reflectometer receiver 323 according to the second real-time data output by the global navigation satellite system reflectometer receiver subsystem 320 based on the second simulation signal;

[0252] The interference display 332 is used to display interference sources for the GNSS reflectometer receiver 323 .

[0253] In some feasible embodiments, the data processing server 331 may first control the reflection antenna 322 to be disconnected from the global navigation satellite system reflectometer receiver 323 , and control the positioning antenna 321 to be connected to the global navigation satellite system reflectometer receiver 323 .

[0254] When the reflection antenna 322 is disconnected from the global navigation satellite system reflectometer receiver 323 and the positioning antenna 321 is connected to the global navigation satellite system reflectometer receiver 323, the data processing server 331 can control the standard positioning signal simulation output subsystem 310 to simulate and generate a first simulation signal, and when different interference sources to be detected are running, control the standard positioning signal simulation output subsystem 310 to send the first simulation signal to the positioning antenna 321, so as to check the interference of interference sources to the global navigation satellite system reflectometer receiver 323 one by one.

[0255] After receiving the first simulation signal, the positioning antenna 321 may transmit the first simulation signal to the global navigation satellite system reflectometer receiver 323; the global navigation satellite system reflectometer receiver 323 may output corresponding first real-time data based on the first simulation signal.

[0256] In actual applications, the data processing server 331 may first turn on the GNSS reflectometer receiver 323 to detect whether there is internal interference, and then turn on other devices in the indoor test environment one by one to detect whether other devices will interfere with the GNSS reflectometer receiver 323 from the positioning antenna 321. In this way, the interference source that interferes with the GNSS reflectometer receiver 323 can be determined.

[0257] In the embodiment of the present invention, the reflective antenna 322 needs to be connected to detect whether there is interference entering the global navigation satellite system reflectometer receiver 323 from the reflective antenna 322 .

[0258] Specifically, the data processing server 331 may control the reflection antenna 322 and the positioning antenna 321 to be connected to the global navigation satellite system reflectometer receiver 323 .

[0259] Then, the data processing server 331 can control the standard positioning signal simulation output subsystem 310 to generate a second simulation signal, and send the second simulation signal to the positioning antenna 321 when different interference sources to be detected are running.

[0260] After receiving the second simulation signal, the positioning antenna 321 may transmit the second simulation signal to the global navigation satellite system reflectometer receiver 323 .

[0261] In addition, after receiving the second simulation signal, the reflective antenna 322 may also transmit it to the GNSS reflectometer receiver 323 .

[0262] After receiving the signal output by the reflection antenna 322 and the signal output by the positioning antenna 321 , the GNSS reflectometer receiver 323 may output corresponding second real-time data.

[0263] Since the problem of interference signal access to the positioning antenna 321 has been checked in advance, when interference occurs again, it enters from the reflector antenna 322. Based on this, the data processing server 331 can determine whether there is interference for the GNSS reflectometer receiver 323 and the source of the interference.

[0264] Specifically, the data processing server 331 may first turn on the GNSS reflectometer receiver 323 to detect whether there is internal interference entering from the reflector antenna 322; then, when the GNSS reflectometer receiver 323 is turned on, other devices in the indoor test environment are turned on one by one to detect whether other devices will interfere with the GNSS reflectometer receiver 323 from the reflector antenna 322. In this way, the interference source that interferes with the GNSS reflectometer receiver 323 can be determined.

[0265] In practical applications, after determining that there is an interference source for the GNSS reflectometer receiver 323, the data processing server 331 may generate a corresponding record to process the interference source that actually generates the interference. The specific anti-interference processing is not limited in the embodiment of the present invention.

[0266] like Figure 4 As shown, the data processing server 331 can display the interference sources for the global navigation satellite system reflectometer receiver 323 on the interference display 332 so that the staff can perform anti-interference processing.

[0267] In one embodiment of the present invention, the standard positioning signal simulation output subsystem 310 includes: a global navigation satellite system simulator 311 and a forwarding antenna 312;

[0268] The global navigation satellite system simulator 311 is used to send a first simulation signal to the positioning antenna 321 through the forwarding antenna 312 in response to the control of the data control and analysis subsystem 330; and to send a second simulation signal to the positioning antenna 321 through the forwarding antenna 312.

[0269] like Figure 4 As shown, the data processing server 331 in the data control and analysis subsystem 330 can send control instructions to the global navigation satellite system simulator 311 to control the global navigation satellite system simulator 311 to generate a corresponding positioning signal (including the first simulation signal or the second simulation signal) and send the positioning signal through the forwarding antenna 312.

[0270] Specifically, the global navigation satellite system simulator 311 may send the generated first simulation signal to the positioning antenna 321 through the forwarding antenna 312 , and may send the generated second simulation signal to the positioning antenna 321 through the forwarding antenna 312 .

[0271] The positioning antenna 321 may be connected to the GNSS reflectometer receiver 323 via a positioning radio frequency cable, and the reflection antenna 322 may be connected to the GNSS reflectometer receiver 323 via a reflection radio frequency cable. The GNSS reflectometer receiver 323 may send the generated first real-time data and the second real-time data to the data processing server 331 for processing.

[0272] by Figure 4 Take the reflected signal interference test system 30 of the global navigation satellite system reflectometer receiver 323 as an example:

[0273] Step 1:

[0274] According to the test requirements, the user connects the GNSS reflectometer receiver 323 to be tested to the positioning antenna 321 through a positioning radio frequency cable, and connects to the reflecting antenna 322 through a reflecting radio frequency cable.

[0275] The data processing server 331 gives control instructions based on the information provided by the user to control the global navigation satellite system simulator 311 to simulate the actual working scenario of the global navigation satellite system reflectometer receiver 323. The global navigation satellite system simulator 311 gives corresponding simulation signals, such as a stationary receiver scenario or a low-orbit satellite-borne receiver scenario.

[0276] Step 2:

[0277] The connection between the reflective antenna 322 and the reflective RF cable is disconnected, and other devices in the working environment of the global navigation satellite system reflectometer receiver 323 are turned off. The reflective data Delay-DopplerMaps data is calculated by the data processing server 331. The data processing method is to select the data of the noise position in the DDM and calculate according to the following formula:

[0278] ;

[0279] in, is the first test value, is the first mean, is the first variance, is the first noise data.

[0280] Since the reflective antenna 322 is disconnected from the reflective RF cable, there is no data received by the antenna in the reflective RF. The theoretical value should be 1000. When the value is less than 1000, there is interference in the links between the positioning antenna 321, the positioning radio frequency cable, the reflection radio frequency cable, and the global navigation satellite system reflectometer receiver 323. The data processing server 331 displays the test results in the interference display 332 in real time.

[0281] Step 3:

[0282] Repeat step 2 to calculate whether there is interference in each reflection channel. The data processing server 331 displays the test results in the interference display 332 in real time.

[0283] Step 4:

[0284] Repeat steps 2 and 3. During the signal reception process, turn on other devices in the working environment of the global navigation satellite system reflectometer receiver 323 in turn, and check whether other devices interfere with the global navigation satellite system reflectometer receiver 323 through the link based on the calculation results; the data processing server 331 displays the test results in real time in the interference display 332.

[0285] If interference is found in steps 2-4, it is necessary to remove the interference first and repeat steps 2-4 to re-measure. After there is no interference, proceed to step 5.

[0286] Step 5:

[0287] Connect the reflective antenna 322 to the reflective RF cable, repeat step 2, and calculate whether there is interference in each reflective channel. The calculation method is the same as step 2. Since the previous steps have excluded the interference of the internal link of the receiver and the link of other devices in the working environment of the receiver, the result calculated according to the following formula at this time indicates whether the interference signal is received through the reflective antenna 322.

[0288] ;

[0289] in, is the third test value, is the third mean, For third party differences, is the third noise data. When there is no interference, The theoretical value should be 1000. The data processing server 331 displays the test result in the interference display 332 in real time.

[0290] Step 6:

[0291] Repeat step 5 to calculate whether there is interference in each reflection channel. The data processing server 331 displays the test result in real time on the interference display 332.

[0292] Step 7:

[0293] Repeat steps 5 and 6, and in the process of receiving signals, turn on other devices in the working environment of the global navigation satellite system reflectometer receiver 323 in turn, and check whether other devices interfere with the receiver through the link according to the calculation results. The data processing server 331 displays the test results in real time in the interference display 332.

[0294] In an embodiment of the present invention, the global navigation satellite system reflectometer receiver reflection signal interference test system can control the reflection antenna to disconnect from the global navigation satellite system reflectometer receiver, the positioning antenna to connect to the global navigation satellite system reflectometer receiver, and when different interference sources to be detected are running, control the standard positioning signal simulation output subsystem to send a first simulation signal to the positioning antenna; according to the first real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the first simulation signal, determine the interference source that interferes with the global navigation satellite system reflectometer receiver; control the reflection antenna and the positioning antenna to connect to the global navigation satellite system reflectometer receiver, and when different interference sources to be detected are running, control the standard positioning signal simulation output subsystem to send a second simulation signal to the positioning antenna; according to the second real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the second simulation signal, determine the interference source that interferes with the global navigation satellite system reflectometer receiver. Through the embodiment of the present invention, the influence of possible interference sources on the interference of the global navigation satellite system reflectometer receiver can be tested one by one based on the simulated simulation signal, so as to accurately complete the positioning of the interference to the global navigation satellite system reflectometer receiver.

[0295] Reference Figure 5 , shows a schematic structural diagram of a global navigation satellite system reflectometer receiver interference test device according to an embodiment of the present invention.

[0296] The first control module 501 is used to control the reflection antenna to be disconnected from the global navigation satellite system reflectometer receiver, connect the positioning antenna to the global navigation satellite system reflectometer receiver, and control the standard positioning signal simulation output subsystem to send a first simulation signal to the positioning antenna;

[0297] A first determination module 502 determines an interference source for a global navigation satellite system reflectometer receiver according to first real-time data output by a global navigation satellite system reflectometer receiver subsystem based on a first simulation signal;

[0298] The second control module 503 is used to control the reflection antenna and the positioning antenna to connect to the global navigation satellite system reflectometer receiver, and control the standard positioning signal simulation output subsystem to send a second simulation signal to the positioning antenna;

[0299] The second determination module 504 is configured to determine an interference source for the global navigation satellite system reflectometer receiver according to second real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the second simulation signal.

[0300] In some embodiments of the present invention, the working environment of the global navigation satellite system reflectometer receiver also includes at least one other device, the first simulation signal includes a first positioning signal and a second positioning signal, and the first control module 501 is used to control the standard positioning signal simulation output subsystem to send the first positioning signal to the positioning antenna when the other devices are turned off; and control the standard positioning signal simulation output subsystem to send the second positioning signal to the positioning antenna when the other devices are turned on.

[0301] In some embodiments of the present invention, the first determination module 502 is used to determine whether there is an interference source inside the global navigation satellite system reflectometer receiver based on first real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the first positioning signal; and to determine the interference source outside the global navigation satellite system reflectometer receiver from at least one other device based on the first real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the second positioning signal.

[0302] In some embodiments of the present invention, the first determination module 502 is used to extract first noise data from first real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the first positioning signal; and determine whether there is an interference source inside the global navigation satellite system reflectometer receiver based on the first noise data and first reference data set for the first positioning signal.

[0303] In some embodiments of the present invention, the first determination module 502 is used to determine a first mean and a first variance based on first noise data, and to determine a first test value based on the first mean and the first variance; and to determine whether there is an interference source inside the global navigation satellite system reflectometer receiver based on the first test value and the first reference data.

[0304] In some embodiments of the present invention, the first determination module 502 is used to determine the first test value according to the following formula:

[0305] ;

[0306] in, is the first test value, is the first mean, is the first variance, is the first noise data.

[0307] In some embodiments of the present invention, the first determination module 502 is used to determine that there is an interference source inside the global navigation satellite system reflectometer receiver when the first test value does not match the first reference data; when the first test value matches the first reference data, determine that there is no interference source inside the global navigation satellite system reflectometer receiver.

[0308] In some embodiments of the present invention, the global navigation satellite system reflectometer receiver includes multiple reflection channels, and the first determination module 502 is used to determine, for a target reflection channel, first real-time data output by the target reflection channel based on a first positioning signal; and determine whether there is an interference source for the target reflection channel inside the global navigation satellite system reflectometer receiver based on the first real-time data output by the target reflection channel based on the first positioning signal.

[0309] In some embodiments of the present invention, the global navigation satellite system reflectometer receiver includes multiple reflection channels, and the first determination module 502 is used to determine, for a target reflection channel, first real-time data output by the target reflection channel based on the second positioning signal; and determine, from at least one other device, an external interference source for the target reflection channel based on the first real-time data output by the target reflection channel based on the second positioning signal.

[0310] In some embodiments of the present invention, the first determination module 502 is used to extract second noise data from the first real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the second positioning signal; and determine whether at least one other device is an interference source external to the global navigation satellite system reflectometer receiver based on the second noise data and second reference data set for the second positioning signal.

[0311] In some embodiments of the present invention, the working environment of the global navigation satellite system reflectometer receiver also includes at least one other device, the second simulation signal includes a third positioning signal and a fourth positioning signal, and the second control module 503 is used to control the standard positioning signal simulation output subsystem to send the third positioning signal to the positioning antenna when the other devices are turned off; and control the standard positioning signal simulation output subsystem to send the fourth positioning signal to the positioning antenna when the other devices are turned on.

[0312] In some embodiments of the present invention, the second determination module 504 is used to determine whether there is an interference source inside the global navigation satellite system reflectometer receiver based on second real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the third positioning signal; and to determine the interference source outside the global navigation satellite system reflectometer receiver from at least one other device based on second real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the fourth positioning signal.

[0313] In some embodiments of the present invention, the second determination module 504 is used to extract third noise data from second real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the third positioning signal; and determine whether there is an interference source inside the global navigation satellite system reflectometer receiver based on the third noise data and third reference data set for the third positioning signal.

[0314] In some embodiments of the present invention, the second determination module 504 is used to determine a third mean and a third difference based on third noise data, and to determine a third test value based on the third mean and the third difference; and to determine whether there is an interference source inside the global navigation satellite system reflectometer receiver based on the third test value and the third reference data.

[0315] In some embodiments of the present invention, the second determination module 504 is configured to determine the third test value according to the following formula:

[0316] ;

[0317] in, is the third test value, is the third mean, For third party differences, is the third noise data.

[0318] In some embodiments of the present invention, the second determination module 504 is used to determine that there is an interference source inside the global navigation satellite system reflectometer receiver when the third test value does not match the third reference data; when the third test value matches the third reference data, determine that there is no interference source inside the global navigation satellite system reflectometer receiver.

[0319] In some embodiments of the present invention, the global navigation satellite system reflectometer receiver includes multiple reflection channels, and the second determination module 504 is used to determine, for a target reflection channel, second real-time data output by the target reflection channel based on a third positioning signal; and determine whether there is an interference source for the target reflection channel inside the global navigation satellite system reflectometer receiver based on the second real-time data output by the target reflection channel based on the third positioning signal.

[0320] In some embodiments of the present invention, the global navigation satellite system reflectometer receiver includes multiple reflection channels, and the second determination module 504 is used to determine, for a target reflection channel, second real-time data output by the target reflection channel based on a fourth positioning signal; and determine, from at least one other device, an external interference source for the target reflection channel based on the second real-time data output by the target reflection channel based on the fourth positioning signal.

[0321] In some embodiments of the present invention, the second determination module 504 is used to extract fourth noise data from second real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the fourth positioning signal; and determine whether at least one other device is an interference source external to the global navigation satellite system reflectometer receiver based on the fourth noise data and fourth reference data set for the fourth positioning signal.

[0322] In some embodiments of the present invention, the apparatus further comprises:

[0323] The display module is used to display interference sources that interfere with a global navigation satellite system reflectometer receiver.

[0324] In an embodiment of the present invention, the global navigation satellite system reflectometer receiver reflection signal interference test system can control the reflection antenna to disconnect from the global navigation satellite system reflectometer receiver, the positioning antenna to connect to the global navigation satellite system reflectometer receiver, and when different interference sources to be detected are running, control the standard positioning signal simulation output subsystem to send a first simulation signal to the positioning antenna; according to the first real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the first simulation signal, determine the interference source that interferes with the global navigation satellite system reflectometer receiver; control the reflection antenna and the positioning antenna to connect to the global navigation satellite system reflectometer receiver, and when different interference sources to be detected are running, control the standard positioning signal simulation output subsystem to send a second simulation signal to the positioning antenna; according to the second real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the second simulation signal, determine the interference source that interferes with the global navigation satellite system reflectometer receiver. Through the embodiment of the present invention, the influence of possible interference sources on the interference of the global navigation satellite system reflectometer receiver can be tested one by one based on the simulated simulation signal, so as to accurately complete the positioning of the interference to the global navigation satellite system reflectometer receiver.

[0325] An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the above-mentioned global navigation satellite system reflectometer receiver interference test method is implemented.

[0326] As for the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0327] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0328] It should be understood by those skilled in the art that the embodiments of the present invention may be provided as methods, devices, or computer program products. Therefore, the embodiments of the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the embodiments of the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.

[0329] The embodiments of the present invention are described with reference to the flowcharts and / or block diagrams of the methods, terminal devices (systems), and computer program products according to the embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of the processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing terminal device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing terminal device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0330] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing terminal device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce a manufactured product including an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0331] These computer program instructions can also be loaded onto a computer or other programmable data processing terminal device so that a series of operating steps are executed on the computer or other programmable terminal device to produce a computer-implemented process, thereby providing instructions for executing on the computer or other programmable terminal device to implement the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0332] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the embodiments of the present invention.

[0333] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or terminal device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or terminal device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or terminal device including the elements.

[0334] The above is a detailed introduction to a global navigation satellite system reflectometer receiver interference test method and related products. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea; at the same time, for general technical personnel in this field, according to the idea of ​​the present invention, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A global navigation satellite system reflectometer receiver interference test method, characterized in that: The invention is applied to a global navigation satellite system reflectometer receiver reflection signal interference test system, the global navigation satellite system reflectometer receiver reflection signal interference test system comprises a standard positioning signal simulation output subsystem and a global navigation satellite system reflectometer receiver subsystem, the global navigation satellite system reflectometer receiver subsystem comprises a positioning antenna, a reflection antenna and a global navigation satellite system reflectometer receiver, the working environment of the global navigation satellite system reflectometer receiver also comprises at least one other device, and the method comprises: Controlling the reflection antenna to be disconnected from the global navigation satellite system reflectometer receiver, connecting the positioning antenna to the global navigation satellite system reflectometer receiver, and controlling the standard positioning signal simulation output subsystem to send a first positioning signal to the positioning antenna when the other devices are turned off, and controlling the standard positioning signal simulation output subsystem to send a second positioning signal to the positioning antenna when the other devices are turned on, wherein the first positioning signal and the second positioning signal are included in the first simulation signal; determining, according to first real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the first simulation signal, an interference source that interferes with the global navigation satellite system reflectometer receiver; Control the reflection antenna and the positioning antenna to be connected to the global navigation satellite system reflectometer receiver, and when the other devices are turned off, control the standard positioning signal simulation output subsystem to send a third positioning signal to the positioning antenna; when the other devices are turned on, control the standard positioning signal simulation output subsystem to send a fourth positioning signal to the positioning antenna, wherein the third positioning signal and the fourth positioning signal are included in the second simulation signal; An interference source causing interference to the global navigation satellite system reflectometer receiver is determined according to second real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the second simulation signal.

2. The GNSS reflectometer receiver interference test method according to claim 1, characterized in that: The determining, according to first real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the first simulation signal, an interference source for the global navigation satellite system reflectometer receiver, comprises: determining whether there is an interference source inside the global navigation satellite system reflectometer receiver according to first real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the first positioning signal; And, according to the first real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the second positioning signal, the interference source outside the global navigation satellite system reflectometer receiver is determined from the at least one other device.

3. The GNSS reflectometer receiver interference test method according to claim 2, characterized in that: The determining, based on first real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the first positioning signal, whether there is an interference source inside the global navigation satellite system reflectometer receiver comprises: Extracting first noise data from first real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the first positioning signal; It is determined whether there is an interference source inside the global navigation satellite system reflectometer receiver according to the first noise data and first reference data set for the first positioning signal.

4. The GNSS reflectometer receiver interference test method according to claim 3, characterized in that: The determining, according to the first noise data and first reference data set for the first positioning signal, whether there is an interference source inside the global navigation satellite system reflectometer receiver includes: Determine a first mean and a first variance according to the first noise data, and determine a first test value according to the first mean and the first variance; It is determined whether there is an interference source inside the global navigation satellite system reflectometer receiver according to the first test value and the first reference data.

5. The GNSS reflectometer receiver interference test method according to claim 4, characterized in that: The determining a first test value according to the first mean and the first variance includes: The first test value is determined according to the following formula: ； in, is the first test value, is the first mean, is the first variance, is the first noise data.

6. The GNSS reflectometer receiver interference test method according to claim 4, characterized in that: The determining, according to the first test value and the first reference data, whether there is an interference source inside the global navigation satellite system reflectometer receiver includes: When the first test value does not match the first reference data, determining that an interference source exists inside the global navigation satellite system reflectometer receiver; When the first test value matches the first reference data, it is determined that no interference source exists inside the global navigation satellite system reflectometer receiver.

7. The GNSS reflectometer receiver interference test method according to claim 2, characterized in that: The GNSS reflectometer receiver includes a plurality of reflection channels, and judging whether there is an interference source inside the GNSS reflectometer receiver according to first real-time data output by the GNSS reflectometer receiver subsystem based on the first positioning signal; For a target reflection channel, determining first real-time data output by the target reflection channel based on the first positioning signal; It is determined whether there is an interference source for the target reflection channel inside the global navigation satellite system reflectometer receiver according to first real-time data output by the target reflection channel based on the first positioning signal.

8. The GNSS reflectometer receiver interference test method according to claim 2, characterized in that: The global navigation satellite system reflectometer receiver includes a plurality of reflection channels, and determining an interference source outside the global navigation satellite system reflectometer receiver from the at least one other device according to first real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the second positioning signal, comprises: For a target reflection channel, determining first real-time data output by the target reflection channel based on the second positioning signal; According to the first real-time data output by the target reflection channel based on the second positioning signal, an external interference source for the target reflection channel is determined from the at least one other device.

9. The GNSS reflectometer receiver interference test method according to claim 2, characterized in that: The determining, from the at least one other device, an interference source external to the global navigation satellite system reflectometer receiver according to first real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the second positioning signal, comprises: Extracting second noise data from first real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the second positioning signal; It is determined whether the at least one other device is an external interference source to the global navigation satellite system reflectometer receiver according to the second noise data and second reference data set for the second positioning signal.

10. The GNSS reflectometer receiver interference test method according to claim 1, characterized in that: The determining, according to second real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the second simulation signal, an interference source for the global navigation satellite system reflectometer receiver, comprises: determining whether there is an interference source inside the global navigation satellite system reflectometer receiver according to second real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the third positioning signal; And, according to second real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the fourth positioning signal, an interference source external to the global navigation satellite system reflectometer receiver is determined from the at least one other device.

11. The GNSS reflectometer receiver interference test method according to claim 10, characterized in that: The determining, based on the second real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the third positioning signal, whether there is an interference source inside the global navigation satellite system reflectometer receiver comprises: extracting third noise data from second real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the third positioning signal; It is determined whether there is an interference source inside the global navigation satellite system reflectometer receiver according to the third noise data and third reference data set for the third positioning signal.

12. The GNSS reflectometer receiver interference test method according to claim 11, characterized in that: The determining, according to the third noise data and the third reference data set for the third positioning signal, whether there is an interference source inside the global navigation satellite system reflectometer receiver comprises: Determine a third mean and a third difference according to the third noise data, and determine a third test value according to the third mean and the third difference; It is determined whether there is an interference source inside the global navigation satellite system reflectometer receiver according to the third test value and the third reference data.

13. The GNSS reflectometer receiver interference test method according to claim 12, characterized in that: The step of determining a third test value according to the third mean and the third difference comprises: The third test value is determined according to the following formula: ； in, is the third test value, is the third mean, For third party differences, is the third noise data.

14. The GNSS reflectometer receiver interference test method according to claim 12, characterized in that: The determining, according to the third test value and the third reference data, whether there is an interference source inside the global navigation satellite system reflectometer receiver comprises: When the third test value does not match the third reference data, determining that an interference source exists inside the global navigation satellite system reflectometer receiver; When the third test value matches the third reference data, it is determined that no interference source exists inside the global navigation satellite system reflectometer receiver.

15. The GNSS reflectometer receiver interference test method according to claim 10, characterized in that: The GNSS reflectometer receiver includes a plurality of reflection channels, and judging whether there is an interference source inside the GNSS reflectometer receiver according to the second real-time data output by the GNSS reflectometer receiver subsystem based on the third positioning signal; For a target reflection channel, determining second real-time data output by the target reflection channel based on the third positioning signal; It is determined whether there is an interference source for the target reflection channel inside the global navigation satellite system reflectometer receiver according to second real-time data output by the target reflection channel based on the third positioning signal.

16. The GNSS reflectometer receiver interference testing method according to claim 10, characterized in that: The global navigation satellite system reflectometer receiver includes a plurality of reflection channels, and determining an interference source outside the global navigation satellite system reflectometer receiver from the at least one other device according to second real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the fourth positioning signal, comprises: For a target reflection channel, determining second real-time data output by the target reflection channel based on the fourth positioning signal; According to the second real-time data output by the target reflection channel based on the fourth positioning signal, an external interference source for the target reflection channel is determined from the at least one other device.

17. The GNSS reflectometer receiver interference test method according to claim 10, characterized in that: The determining, from the at least one other device, an interference source external to the global navigation satellite system reflectometer receiver according to the second real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the fourth positioning signal, comprises: extracting fourth noise data from second real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the fourth positioning signal; It is determined whether the at least one other device is an external interference source to the global navigation satellite system reflectometer receiver according to the fourth noise data and fourth reference data set for the fourth positioning signal.

18. The GNSS reflectometer receiver interference test method according to claim 1, characterized in that: The method further comprises: Interference sources that are interfering with the global navigation satellite system reflectometer receiver are indicated.

19. A global navigation satellite system reflectometer receiver reflected signal interference test system, characterized in that: The GNSS reflectometer receiver reflected signal interference test system comprises: a standard positioning signal simulation output subsystem, a GNSS reflectometer receiver subsystem, and a data control and analysis subsystem; the GNSS reflectometer receiver subsystem comprises a positioning antenna, a reflection antenna and a GNSS reflectometer receiver; the working environment of the GNSS reflectometer receiver also comprises at least one other device, wherein: The data control and analysis subsystem is used to control the reflection antenna to be disconnected from the global navigation satellite system reflectometer receiver, the positioning antenna to be connected to the global navigation satellite system reflectometer receiver, and to control the standard positioning signal simulation output subsystem to send a first positioning signal to the positioning antenna when the other devices are turned off, and to control the standard positioning signal simulation output subsystem to send a second positioning signal to the positioning antenna when the other devices are turned on, wherein the first positioning signal and the second positioning signal are included in the first simulation signal; and to determine the positioning signal for the global navigation satellite system reflectometer receiver according to the first real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the first simulation signal. The invention discloses a method for determining an interference source that interferes with the global navigation satellite system reflectometer receiver; controlling the reflection antenna and the positioning antenna to be connected to the global navigation satellite system reflectometer receiver, and when the other devices are turned off, controlling the standard positioning signal simulation output subsystem to send a third positioning signal to the positioning antenna; when the other devices are turned on, controlling the standard positioning signal simulation output subsystem to send a fourth positioning signal to the positioning antenna, wherein the third positioning signal and the fourth positioning signal are included in the second simulation signal; and determining an interference source that interferes with the global navigation satellite system reflectometer receiver according to second real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the second simulation signal.

20. The GNSS reflectometer receiver reflected signal interference test system according to claim 19, characterized in that: The data control and analysis subsystem includes: A data processing server, used for controlling the reflection antenna to be disconnected from the global navigation satellite system reflectometer receiver, connecting the positioning antenna to the global navigation satellite system reflectometer receiver, and controlling the standard positioning signal simulation output subsystem to send a first simulation signal to the positioning antenna; determining an interference source for the global navigation satellite system reflectometer receiver according to first real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the first simulation signal; controlling the reflection antenna and the positioning antenna to be connected to the global navigation satellite system reflectometer receiver, and controlling the standard positioning signal simulation output subsystem to send a second simulation signal to the positioning antenna; determining an interference source for the global navigation satellite system reflectometer receiver according to second real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the second simulation signal; An interference display is used to display interference sources to the global navigation satellite system reflectometer receiver.

21. The GNSS reflectometer receiver reflected signal interference test system according to claim 19, characterized in that: The standard positioning signal simulation output subsystem includes: a global navigation satellite system simulator and a forwarding antenna; The global navigation satellite system simulator is used to send a first simulation signal to the positioning antenna through the repeater antenna in response to the control of the data control and analysis subsystem; and to send a second simulation signal to the positioning antenna through the repeater antenna.

22. A global navigation satellite system reflectometer receiver interference test device, characterized in that: The invention is applied to a global navigation satellite system reflectometer receiver reflection signal interference test system, the global navigation satellite system reflectometer receiver reflection signal interference test system comprises a standard positioning signal simulation output subsystem and a global navigation satellite system reflectometer receiver subsystem, the global navigation satellite system reflectometer receiver subsystem comprises a positioning antenna, a reflection antenna and a global navigation satellite system reflectometer receiver, the working environment of the global navigation satellite system reflectometer receiver also comprises at least one other device, and the device comprises: a first control module, used for controlling the reflection antenna to be disconnected from the global navigation satellite system reflectometer receiver, connecting the positioning antenna to the global navigation satellite system reflectometer receiver, and controlling the standard positioning signal simulation output subsystem to send a first positioning signal to the positioning antenna when the other devices are turned off, and controlling the standard positioning signal simulation output subsystem to send a second positioning signal to the positioning antenna when the other devices are turned on, wherein the first positioning signal and the second positioning signal are included in the first simulation signal; A first determination module is used to determine an interference source that interferes with the global navigation satellite system reflectometer receiver according to first real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the first simulation signal; a second control module, used for controlling the reflection antenna and the positioning antenna to be connected to the global navigation satellite system reflectometer receiver, and controlling the standard positioning signal simulation output subsystem to send a third positioning signal to the positioning antenna when the other devices are turned off; and controlling the standard positioning signal simulation output subsystem to send a fourth positioning signal to the positioning antenna when the other devices are turned on, wherein the third positioning signal and the fourth positioning signal are included in the second simulation signal; The second determination module is used to determine an interference source that interferes with the global navigation satellite system reflectometer receiver according to second real-time data output by the global navigation satellite system reflectometer receiver subsystem based on the second simulation signal.

23. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the global navigation satellite system reflectometer receiver interference test method as described in any one of claims 1-18 is implemented.

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