Satellite communication signal detection method and electronic equipment

Abstract

The invention discloses a satellite communication signal detection method and electronic equipment, which are used for providing signal measurement for multi-band satellite communication for a signal detection method for a satellite communication system. The method comprises the following steps: acquiring radio frequency signals of different frequency bands in satellite communication; according to an interference detection mode corresponding to the evaluation index, performing interference detection on the acquired radio frequency signals of different frequency bands, and determining detection results corresponding to the radio frequency signals of different frequency bands; and positioning the interference source according to the detection results corresponding to the radio frequency signals of different frequency bands.

Description

Technical Field

[0001] The present invention relates to the technical field of satellite communication, and particularly to a satellite communication signal detection method and an electronic device. Background Art

[0002] Satellite communication is a network system that provides communication services globally through satellites. Simply put, it uses satellites to achieve high-bandwidth and low-latency broadband coverage, thus achieving an effect similar to that of current mobile communication. Technically, high-frequency millimeter-wave radio signals can be used to launch hundreds or thousands of satellites to provide low-latency and high-speed broadband network services to any location in the world.

[0003] Existing signal detection devices have a single test function and focus on software analysis, and cannot support multi-band satellite communication measurement. Summary of the Invention

[0004] The present invention provides a satellite communication signal detection method and an electronic device for a signal detection method for a satellite communication system, and provides signal measurement for multi-band satellite communication.

[0005] In a first aspect, a satellite communication signal detection method provided by an embodiment of the present invention includes:

[0006] Collect radio frequency signals of different frequency bands in satellite communication;

[0007] Perform interference detection on the collected radio frequency signals of different frequency bands according to the interference detection method corresponding to the evaluation index, and determine the detection results corresponding to the radio frequency signals of different frequency bands;

[0008] Locate the interference source according to the detection results corresponding to the radio frequency signals of different frequency bands.

[0009] As an optional implementation manner, the evaluation index includes a beam coverage index of satellite communication.

[0010] As an optional implementation manner, performing interference detection on the collected radio frequency signals of different frequency bands according to the interference detection method corresponding to the evaluation index, and determining the detection results corresponding to the radio frequency signals of different frequency bands includes:

[0011] Collect multiple beams of radio frequency signals of different frequency bands through antenna control technology and anti-interference beam search technology;

[0012] Perform interference detection related to beam coverage on the multiple beams of the collected radio frequency signals of different frequency bands, and determine the detection results corresponding to the radio frequency signals of different frequency bands.

[0013] As an alternative implementation, the interference detection related to beam coverage of the multiple beams of the collected radio frequency signals in different frequency bands, and determining the detection results corresponding to the radio frequency signals in different frequency bands, includes:

[0014] Performing quality measurement and received power measurement of the common channel for the multiple beams of the collected radio frequency signals in different frequency bands, and determining the detection results corresponding to the radio frequency signals in different frequency bands.

[0015] As an alternative implementation, the performing quality measurement and received power measurement of the common channel for the multiple beams of the collected radio frequency signals in different frequency bands, and determining the detection results corresponding to the radio frequency signals in different frequency bands, includes:

[0016] Performing quality measurement of the common channel for the multiple beams of the collected radio frequency signals in different frequency bands, and determining the satellite signal coverage quality corresponding to the multiple beams in different frequency bands;

[0017] Performing received power measurement of the common channel for the multiple beams of the collected radio frequency signals in different frequency bands, and determining the satellite signal coverage intensity corresponding to the multiple beams in different frequency bands.

[0018] As an alternative implementation, the evaluation metrics include satellite communication modulation interference metrics.

[0019] As an alternative implementation, according to the interference detection method corresponding to the evaluation metrics, performing interference detection on the collected radio frequency signals in different frequency bands, and determining the detection results corresponding to the radio frequency signals in different frequency bands, includes:

[0020] Converting the collected radio frequency signals in different frequency bands into baseband signals to obtain the baseband signals corresponding to different frequency bands;

[0021] Performing interference detection in the time domain and frequency domain on the baseband signals corresponding to different frequency bands, and determining the detection results corresponding to the radio frequency signals in different frequency bands.

[0022] As an alternative implementation, the performing interference detection in the time domain and frequency domain on the baseband signals corresponding to different frequency bands, and determining the detection results corresponding to the radio frequency signals in different frequency bands, includes:

[0023] For each baseband signal corresponding to a frequency band, performing at least one interference detection of time offset detection, frequency offset detection, identification detection, frequency reuse detection, time domain detection, and frequency domain detection on the baseband signal, and determining the detection result of the radio frequency signal corresponding to the baseband signal.

[0024] As an alternative implementation, according to the detection results corresponding to the radio frequency signals in different frequency bands, performing positioning of the interference source, includes:

[0025] Locate the interference source based on the abnormal data in the detection results corresponding to the radio frequency signals of different frequency bands.

[0026] As an alternative implementation, the locating of the interference source based on the abnormal data in the detection results corresponding to the radio frequency signals of different frequency bands includes:

[0027] When the interference source is satellite communication modulation interference, determine that the interference source belongs to at least one of network planning interference, parameter configuration interference, timing interference, frequency offset interference, time-domain and frequency-domain burst interference, and hardware fault interference according to the abnormal data in the detection results corresponding to the radio frequency signals of different frequency bands.

[0028] As an alternative implementation, the locating of the interference source based on the abnormal data in the detection results corresponding to the radio frequency signals of different frequency bands includes:

[0029] When the interference source is not satellite communication modulation interference, perform frequency-domain conversion on the radio frequency signal according to the abnormal data in the detection results corresponding to the radio frequency signals of different frequency bands to obtain a frequency-domain signal;

[0030] Perform spectrum analysis on the frequency-domain signal to obtain the power spectrum corresponding to the radio frequency signal;

[0031] Locate the interference source according to the abnormal data of the power spectrum.

[0032] As an alternative implementation, the locating of the interference source according to the abnormal data of the power spectrum includes:

[0033] Determine the power spectrum corresponding to the received radio frequency signal by adjusting the antenna reception direction of the radio frequency signal;

[0034] Determine the azimuth of the interference source according to the signal high and low state of the power spectrum.

[0035] As an alternative implementation, the radio frequency signal includes a Global Navigation Satellite System (GNSS) radio frequency signal, and the method further includes:

[0036] Compare the collected GNSS radio frequency signal with the timing reference, and evaluate the timing enhancement performance according to the comparison result.

[0037] In a second aspect, a satellite communication signal detection device provided by an embodiment of the present invention includes:

[0038] A signal acquisition module, configured to acquire radio frequency signals of different frequency bands in satellite communication;

[0039] An interference detection module, configured to perform interference detection on the collected radio frequency signals of different frequency bands according to the interference detection method corresponding to the evaluation index, and determine the detection results corresponding to the radio frequency signals of different frequency bands;

[0040] An interference location module, configured to locate the interference source according to the detection results corresponding to the radio frequency signals of different frequency bands.

[0041] As an alternative implementation, the evaluation index includes the beam coverage index of satellite communication.

[0042] As an alternative implementation, the interference detection module is specifically configured to:

[0043] Collect multiple beams of radio frequency signals of different frequency bands through antenna control technology and anti-interference beam search technology;

[0044] Perform interference detection related to beam coverage on the multiple beams of radio frequency signals of different frequency bands collected, and determine the detection results corresponding to the radio frequency signals of different frequency bands.

[0045] As an alternative implementation, the interference detection module is specifically configured to:

[0046] Perform quality measurement and received power measurement of the common channel on the multiple beams of radio frequency signals of different frequency bands collected, and determine the detection results corresponding to the radio frequency signals of different frequency bands.

[0047] As an alternative implementation, the interference detection module is specifically configured to:

[0048] Perform quality measurement of the common channel on the multiple beams of radio frequency signals of different frequency bands collected, and determine the satellite signal coverage quality corresponding to the multiple beams of different frequency bands;

[0049] Perform received power measurement of the common channel on the multiple beams of radio frequency signals of different frequency bands collected, and determine the satellite signal coverage intensity corresponding to the multiple beams of different frequency bands.

[0050] As an alternative implementation, the evaluation index includes the satellite communication modulation interference index.

[0051] As an alternative implementation, the interference detection module is specifically configured to:

[0052] Convert the collected radio frequency signals of different frequency bands into baseband signals to obtain baseband signals corresponding to different frequency bands;

[0053] Perform interference detection in the time domain and frequency domain on the baseband signals corresponding to different frequency bands, and determine the detection results corresponding to the radio frequency signals of different frequency bands.

[0054] As an alternative implementation, the interference detection module is specifically configured to:

[0055] For the baseband signal corresponding to each frequency band, perform at least one interference detection of time offset detection, frequency offset detection, identification detection, frequency reuse detection, time domain detection, and frequency domain detection on the baseband signal, and determine the detection result of the radio frequency signal corresponding to the baseband signal.

[0056] As an alternative implementation, the interference location module is specifically configured to:

[0057] Locate the interference source based on the abnormal data in the detection results corresponding to the radio frequency signals of different frequency bands.

[0058] As an alternative implementation, the interference location module is specifically configured to:

[0059] When the interference source is satellite communication modulation interference, determine that the interference source belongs to at least one of network planning interference, parameter configuration interference, timing interference, frequency offset interference, time domain and frequency domain burst interference, and hardware failure interference according to the abnormal data in the detection results corresponding to the radio frequency signals of different frequency bands.

[0060] As an alternative implementation, the interference location module is specifically configured to:

[0061] When the interference source is not satellite communication modulation interference, perform frequency domain conversion on the radio frequency signal according to the abnormal data in the detection results corresponding to the radio frequency signals of different frequency bands to obtain a frequency domain signal;

[0062] Perform spectrum analysis on the frequency domain signal to obtain the power spectrum corresponding to the radio frequency signal;

[0063] Locate the interference source according to the abnormal data of the power spectrum.

[0064] As an alternative implementation, the interference location module is specifically configured to:

[0065] Determine the power spectrum corresponding to the received radio frequency signal by adjusting the antenna reception direction of the radio frequency signal;

[0066] Determine the azimuth of the interference source according to the signal high and low state of the power spectrum.

[0067] As an alternative implementation, the radio frequency signal includes a Global Navigation Satellite System (GNSS) radio frequency signal, and the device further includes a timing enhancement module specifically configured to:

[0068] Compare the collected GNSS radio frequency signal with the timing reference, and evaluate the timing enhancement performance according to the comparison result.

[0069] In a third aspect, an embodiment of the present invention further provides an electronic device, including a processor and a memory. The memory is used to store a program executable by the processor, and the processor is used to read the program in the memory and execute the following steps:

[0070] Collect radio frequency signals of different frequency bands in satellite communication;

[0071] Perform interference detection on the collected radio frequency signals of different frequency bands according to the interference detection method corresponding to the evaluation index, and determine the detection results corresponding to the radio frequency signals of different frequency bands;

[0072] Locate the interference source according to the detection results corresponding to the radio frequency signals of different frequency bands.

[0073] As an optional implementation manner, the evaluation index includes a beam coverage index of satellite communication.

[0074] As an optional implementation manner, the processor is specifically configured to execute:

[0075] Collect multiple beams of radio frequency signals of different frequency bands through antenna control technology and anti-interference beam search technology;

[0076] Perform interference detection related to beam coverage on the multiple beams of radio frequency signals of different frequency bands collected, and determine the detection results corresponding to the radio frequency signals of different frequency bands.

[0077] As an optional implementation manner, the processor is specifically configured to execute:

[0078] Perform quality measurement and received power measurement of the common channel on the multiple beams of radio frequency signals of different frequency bands collected, and determine the detection results corresponding to the radio frequency signals of different frequency bands.

[0079] As an optional implementation manner, the processor is specifically configured to execute:

[0080] Perform quality measurement of the common channel on the multiple beams of radio frequency signals of different frequency bands collected, and determine the satellite signal coverage quality corresponding to the multiple beams of different frequency bands;

[0081] Perform received power measurement of the common channel on the multiple beams of radio frequency signals of different frequency bands collected, and determine the satellite signal coverage intensity corresponding to the multiple beams of different frequency bands.

[0082] As an optional implementation manner, the evaluation index includes a satellite communication modulation interference index.

[0083] As an optional implementation manner, the processor is specifically configured to execute:

[0084] Convert the collected radio frequency signals of different frequency bands into baseband signals to obtain baseband signals corresponding to different frequency bands;

[0085] Perform interference detection in the time domain and frequency domain on the baseband signals corresponding to different frequency bands to determine the detection results corresponding to the radio frequency signals of different frequency bands.

[0086] As an alternative implementation, the processor is specifically configured to execute:

[0087] For each baseband signal corresponding to a frequency band, perform at least one interference detection of time offset detection, frequency offset detection, identification detection, frequency reuse detection, time domain detection, and frequency domain detection on the baseband signal to determine the detection result of the radio frequency signal corresponding to the baseband signal.

[0088] As an alternative implementation, the processor is specifically configured to execute:

[0089] Locate the interference source according to the abnormal data in the detection results corresponding to the radio frequency signals of different frequency bands.

[0090] As an alternative implementation, the processor is specifically configured to execute:

[0091] When the interference source is satellite communication modulation interference, determine that the interference source belongs to at least one of network planning interference, parameter configuration interference, timing interference, frequency offset interference, time domain and frequency domain burst interference, and hardware fault interference according to the abnormal data in the detection results corresponding to the radio frequency signals of different frequency bands.

[0092] As an alternative implementation, the processor is specifically configured to execute:

[0093] When the interference source is not satellite communication modulation interference, perform frequency domain conversion on the radio frequency signal according to the abnormal data in the detection results corresponding to the radio frequency signals of different frequency bands to obtain a frequency domain signal;

[0094] Perform spectrum analysis on the frequency domain signal to obtain the power spectrum corresponding to the radio frequency signal;

[0095] Locate the interference source according to the abnormal data of the power spectrum.

[0096] As an alternative implementation, the processor is specifically configured to execute:

[0097] Determine the power spectrum corresponding to the received radio frequency signal by adjusting the antenna reception direction of the radio frequency signal;

[0098] Determine the azimuth of the interference source according to the signal high and low state of the power spectrum.

[0099] As an alternative embodiment, the radio frequency signal includes a Global Navigation Satellite System (GNSS) radio frequency signal, and the processor is further specifically configured to perform:

[0100] Compare the collected GNSS radio frequency signal with the timing reference, and evaluate the timing enhancement performance according to the comparison result.

[0101] In a fourth aspect, an embodiment of the present invention further provides a computer storage medium, on which a computer program is stored, and when the program is executed by a processor, it is used to implement the steps of the method described in the first aspect above.

[0102] In a fifth aspect, the present application provides a computer program product, which includes: computer program code, and when the computer program code runs on a computer, it causes the computer to execute the method described in any one of the first aspects.

[0103] These aspects or other aspects of the present application will be more clearly understood in the following description of the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0104] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0105] Figure 1 It is a flowchart of an embodiment of a satellite communication signal detection method provided by an embodiment of the present invention;

[0106] Figure 2 It is a schematic diagram of the hardware architecture of a satellite communication signal detection method provided by an embodiment of the present invention;

[0107] Figure 3 It is a software architecture diagram of a satellite communication signal detection device provided by an embodiment of the present invention;

[0108] Figure 4 It is a schematic diagram of the external connection relationship of a satellite communication detection device provided by an embodiment of the present invention;

[0109] Figure 5 It is a schematic diagram of a satellite communication signal detection device provided by an embodiment of the present invention;

[0110] Figure 6 It is a schematic diagram of an electronic device provided by an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0111] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. Apparently, the described embodiments are only a part of the embodiments of the present invention, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0112] In the embodiments of the present invention, the term "and / or" describes the association relationship of associated objects and indicates that there can be three relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally represents an "or" relationship between the associated objects before and after.

[0113] The application scenarios described in the embodiments of the present invention are for more clearly illustrating the technical solutions of the embodiments of the present invention and do not constitute a limitation on the technical solutions provided by the embodiments of the present invention. Those of ordinary skill in the art know that with the emergence of new application scenarios, the technical solutions provided by the embodiments of the present invention are equally applicable to similar technical problems. Among them, in the description of the present invention, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0114] Before introducing the carrier detection method provided by the embodiments of the present application, for the convenience of understanding, the technical background of the embodiments of the present application will be first introduced in detail below.

[0115] Currently, more than 70% of the earth's geographical space, involving 3 billion people, has not achieved Internet coverage. Satellite communication has the characteristics of wide coverage, low latency, broadband, and low cost. It is one of the important means to solve the digital divide of the "Internet-free" population on the earth and is also an effective supplement to achieve continuous geographical coverage of network information. Satellite communication can provide information communication services to all regions of the world, thus realizing global broadband seamless communication. Satellite communication has the characteristics of wide coverage, low latency, broadband, and low cost and is an essential part of the space-air-ground integrated network. The space-air-ground integrated network has been established as the core direction of the future-oriented 6G communication architecture in many countries including China. In the 6G era, space-based (high-orbit / mid-orbit / low-orbit satellites), air-based (near-space / high-altitude / low-altitude aircraft) and other networks will be deeply integrated with ground-based (cellular / WiFi / wired) networks to build a global wide-area coverage space-air-ground integrated three-dimensional network to provide users with broadband mobile communication services without blind spots. Incorporating satellite interconnection into the core architecture of the 6G network is one of the deepest changes in 6G compared with any previous mobile communication system. A major transformation in the 6G network architecture is the transformation from ground access to ubiquitous access in space-air-ground-sea, which requires supporting multiple access methods such as space-based, air-based, and ground-based, and multiple connection types such as fixed, mobile, and satellite. As an important future communication infrastructure, satellite communication will provide low-cost interconnection services for the world.

[0116] Satellite communication is a network system that provides communication services globally through satellites. Simply put, it uses low-orbit high-throughput satellites to achieve high-bandwidth and low-latency broadband coverage, thus achieving an effect similar to that of current mobile communication. Technically, high-frequency millimeter-wave radio signals can be used to launch hundreds or thousands of near-earth orbit satellites to provide low-latency and high-speed broadband network services to any location in the world. However, existing signal detection devices have a single test function and focus on software analysis, and cannot support multi-band satellite communication measurement.

[0117] Based on this, this embodiment provides a satellite communication signal detection method, a test module that supports wireless network optimization, network quality monitoring, interference testing, and positioning, combines the functions of a spectrum analyzer and vector signal analysis, and has asynchronous spectrum analysis, beam synchronization spectrum analysis, and vector signal analysis functions.

[0118] As Figure 1 shown, the implementation process of the satellite communication signal detection method provided in this embodiment is as follows:

[0119] Step 100: Collect radio frequency signals of different frequency bands in satellite communication;

[0120] In implementation, high-speed antenna control technology can be used to collect radio frequency signals of different frequency bands in satellite communication. The radio frequency signals of different frequency bands include but are not limited to geostationary orbit radio frequency signals, vehicle-mounted narrowband radio frequency signals, handheld narrowband radio frequency signals, handheld narrowband Internet of Things radio frequency signals, GNSS radio frequency signals, etc.

[0121] Step 101: Perform interference detection on the collected radio frequency signals of different frequency bands according to the interference detection method corresponding to the evaluation index, and determine the detection results corresponding to the radio frequency signals of different frequency bands;

[0122] In implementation, different evaluation indexes correspond to different interference detection methods. The evaluation indexes in this embodiment include but are not limited to: the beam coverage index of satellite communication, the satellite communication modulation interference index. Among them, the beam coverage index of satellite communication is used to represent the beam coverage situation of satellite communication, such as the coverage intensity and coverage quality of satellite communication signals. Based on the detected beam coverage situation of satellite communication, it is used for time-domain coverage statistics, regional coverage statistics, overlapping coverage degree statistics, and adjacent beam optimization design of satellite communication. The satellite communication modulation interference index is used to represent the interference of internal planning and configuration, timing interference, frequency offset interference, and time-domain and frequency-domain burst interference in the satellite communication system. Through the satellite communication modulation interference detection function, it is used to evaluate the regional interference level of satellite communication, the existing interference problems and interference sources. The interference sources mainly come from network planning, parameter configuration, hardware failures within the system, and various frequency-domain interferences from external systems.

[0123] In some embodiments, the evaluation metrics include beam coverage metrics for satellite communication; the interference detection of RF signals in different frequency bands collected is performed as follows:

[0124] By using antenna control technology and anti-interference beam search technology, multiple beams of RF signals in different frequency bands are collected; interference detection related to beam coverage is performed on the multiple beams of RF signals in different frequency bands collected, and the detection results corresponding to the RF signals in different frequency bands are determined.

[0125] In some embodiments, the interference detection related to beam coverage is performed on the multiple beams of RF signals in different frequency bands collected as follows:

[0126] For the multiple beams of RF signals in different frequency bands collected, quality measurement and received power measurement of the common channel are performed to determine the detection results corresponding to the RF signals in different frequency bands.

[0127] Optionally, the detection results are determined as follows:

[0128] Quality measurement of the common channel is performed on the multiple beams of RF signals in different frequency bands collected to determine the satellite signal coverage quality corresponding to the multiple beams in different frequency bands;

[0129] Received power measurement of the common channel is performed on the multiple beams of RF signals in different frequency bands collected to determine the satellite signal coverage intensity corresponding to the multiple beams in different frequency bands.

[0130] In implementation, an evaluation test related to beam coverage of satellite communication can be performed. Through high-speed antenna control technology, anti-interference cell / beam search technology, the carrier monitoring terminal can achieve rapid capture of multiple cells / beams of wireless signals in the satellite communication system, and complete the measurement of the beam common channel that determines the satellite coverage range, including synchronization channels and broadcast channels. The channel measurement parameters include received power measurement and channel quality measurement. The coverage intensity of the satellite can be reflected by the power, and the signal coverage quality of the test area can be reflected by the channel quality. The multiple beam coverage data measured by the carrier monitoring terminal can be used for time-domain coverage statistics, regional coverage statistics, overlapping coverage degree statistics, and adjacent beam optimization design of the network.

[0131] In some embodiments, the evaluation metrics include satellite communication modulation interference metrics. The interference detection of RF signals in different frequency bands collected is performed according to the following steps to determine the detection results corresponding to the RF signals in different frequency bands:

[0132] Convert the collected radio frequency signals of different frequency bands into baseband signals to obtain the baseband signals corresponding to different frequency bands; perform interference detection in the time domain and frequency domain on the baseband signals corresponding to different frequency bands to determine the detection results corresponding to the radio frequency signals of different frequency bands.

[0133] Optionally, perform interference detection in the time domain and frequency domain on the baseband signals corresponding to different frequency bands in the following manner to determine the detection results corresponding to the radio frequency signals of different frequency bands:

[0134] For each baseband signal corresponding to a frequency band, perform at least one interference detection among time offset detection, frequency offset detection, identification detection, frequency reuse detection, time domain detection, and frequency domain detection on the baseband signal to determine the detection result of the radio frequency signal corresponding to the baseband signal.

[0135] In implementation, through the internal modulation interference detection function for each system, test data can be provided for time offset analysis, frequency offset analysis, identification interference analysis, frequency reuse interference analysis, time domain interference analysis, and frequency domain interference analysis. The interference assessment test is mainly used to evaluate the regional interference level of the network, as well as the existing interference problems and interference points. The interference sources mainly come from network planning, parameter configuration, hardware failures within the system, and various frequency domain interferences from external systems.

[0136] Step 102: Locate the interference source according to the detection results corresponding to the radio frequency signals of different frequency bands.

[0137] In implementation, locate the interference source according to the abnormal data in the detection results corresponding to the radio frequency signals of different frequency bands.

[0138] In some embodiments, locate the interference in the following manner:

[0139] When the interference source is satellite communication modulation interference, determine that the interference source belongs to at least one of network planning interference, parameter configuration interference, timing interference, frequency offset interference, time domain and frequency domain burst interference, and hardware failure interference according to the abnormal data in the detection results corresponding to the radio frequency signals of different frequency bands.

[0140] In this embodiment, the detection of satellite communication modulation interference mainly evaluates the in-system planning and configuration interference, timing interference, frequency offset interference, and time domain and frequency domain burst interference. Carrier monitoring discovers and locates the interference assessment test of the satellite communication system through the built-in interference detection function for each system.

[0141] In some embodiments, locate the interference source according to the abnormal data in the detection results corresponding to the radio frequency signals of different frequency bands through the following steps:

[0142] (1) When the interference source is not a satellite communication modulation interference, according to the abnormal data in the detection results corresponding to the radio frequency signals of different frequency bands, the radio frequency signals are subjected to frequency domain conversion to obtain frequency domain signals;

[0143] (2) Perform spectrum analysis on the frequency domain signals to obtain the power spectrum corresponding to the radio frequency signals;

[0144] (3) Locate the interference source according to the abnormal data of the power spectrum.

[0145] In implementation, when it is determined that the interference source is not a satellite communication modulation interference, it is necessary to locate the spurious interference, harmonic interference, and intermodulation interference in the surrounding environment. With the help of the spectrum analysis function and the directional antenna, the interference sources such as harmonics, spurious signals, and intermodulation are captured and located.

[0146] In implementation, the interference source is located in the following manner:

[0147] By adjusting the antenna reception direction of the radio frequency signal, determine the power spectrum corresponding to the received radio frequency signal; determine the azimuth of the interference source according to the signal level state of the power spectrum.

[0148] In some embodiments, the radio frequency signals include GNSS (Global Navigation Satellite System) radio frequency signals. In this embodiment, the collected GNSS radio frequency signals can also be compared with the timing reference, and the timing enhancement performance is evaluated according to the comparison result.

[0149] As Figure 2 shown, this embodiment provides a schematic diagram of the hardware architecture of a satellite communication signal detection method, including a main control unit, a baseband processing unit, a radio frequency receiving unit, a GNSS module, a clock module, a power supply module, a communication module, and a timing measurement module. Among them, the functions of each module are as follows:

[0150] a1) The main control unit, using a high-performance processor, supports the operation of the main control software, and is used to execute the steps of the above satellite communication signal detection method.

[0151] a2) The baseband processing unit supports real-time baseband signal processing, including the real-time processing of the satellite communication signal detection method.

[0152] a3) The radio frequency receiving unit supports the radio frequency signal receiving and processing of the satellite communication intermediate frequency input signal, including amplification, filtering, down-conversion, AD (analog-to-digital) sampling, etc., and converts it into a digital baseband signal and sends it to the baseband processing unit for processing. It supports the reception and processing of satellite communication radio frequency signals and converts them into digital baseband signals and sends them to the baseband processing unit for processing.

[0153] a4) GNSS module, supporting commercial GPS (Global Positioning System) / BD (Beidou) positioning.

[0154] a5) Clock module, used for generating and distributing the local reference clock.

[0155] a6) Power module, used for hardware power supply and power conversion adaptation.

[0156] a7) Communication module, responsible for supporting external communication, including external Ethernet communication.

[0157] a8) Timing measurement module, used for measuring the local timing enhancement effect based on the timing reference.

[0158] a9) Test 1PPS (1 Pulse Per Second) interface, for the navigation enhancement timing signal to be tested.

[0159] The external interfaces include: power supply interface, LAN interface, low-earth orbit broadband / wideband RF interface, satellite communication terminal RF interface, GNSS RF interface, test 1PPS input, etc.

[0160] As Figure 3 shown, this embodiment also provides a software architecture for a satellite communication signal detection device. The software function modules mainly include a main control software, an operation and maintenance software, a test management module, a spectrum analysis module, a timing measurement module, a GNSS positioning module, and satellite communication search and measurement. The specific functions are as follows:

[0161] b1) Main control software, responsible for the process management of the local satellite communication signal detection device, including test processes and maintenance processing.

[0162] b2) Operation and maintenance software, used for the maintenance management of the local satellite communication signal detection device, including version query, software upgrade, etc.

[0163] b3) Test management software, used for the test management of the local satellite communication signal detection device, supporting test start, termination, and organization and reporting of test data.

[0164] b4) Spectrum analysis module, supporting connection to the main control in the ways of using WIFI (Wireless Fidelity) and LAN (Local Area Network), and performing data transmission based on TCP / IP (Transmission Control Protocol / Internet Protocol) to ensure stable and reliable data connection.

[0165] b5) Timing measurement module, responsible for editing, modifying, exporting, and importing test tasks, as well as interacting with road test equipment to complete test startup and test stop.

[0166] b6) GNSS positioning module, used to read GNSS positioning data (latitude and longitude) and output it.

[0167] b7) Satellite communication search and measurement, used to perform cell / beam search and channel measurement of satellite communication systems (power / SNR measurement of synchronization channels and broadcast channels).

[0168] b8) Driver software, used for the operation configuration and interface communication of the underlying hardware of satellite communication signal detection equipment.

[0169] As Figure 4 shown, this embodiment provides a schematic diagram of the external connection relationship of a satellite communication detection device. The satellite communication detection device supports coverage evaluation tests, modulation interference evaluation tests, and interference localization of satellite communication systems. It supports test evaluations for timing and navigation enhancement.

[0170] The satellite communication detection device is externally connected to an external master device through a LAN interface. Under the control of the external master device, it completes test startup, test termination, and data acquisition.

[0171] The test evaluation for timing and navigation enhancement is used for the satellite communication detection device to achieve test evaluation of timing enhancement by comparing the timing reference with the to-be-tested timing signal.

[0172] The coverage evaluation test is used to achieve rapid capture of multiple cells / beams of wireless signals in satellite communication systems through high-speed antenna control technology and anti-interference cell / beam search technology, and complete the measurement of beam common channels that determine the satellite coverage range, including synchronization channels and broadcast channels. Channel measurement parameters include received power measurement and channel quality measurement. The power can reflect the satellite coverage intensity, and the channel quality can reflect the signal coverage quality in the test area. The multiple beam coverage data measured by the satellite communication detection device can be used for time-domain coverage statistics, regional coverage statistics, overlapping coverage degree statistics, and adjacent beam optimization design of the network.

[0173] The interference evaluation test mainly evaluates interference such as system-internal planning and configuration interference, timing interference, frequency offset interference, and time-domain and frequency-domain burst interference. It discovers and locates interference evaluation tests of satellite communication systems through built-in interference detection functions for each system.

[0174] Interference localization uses the satellite communication detection device to find the source of interference suffered by the system, and completes the localization of spurious interference, harmonic interference, and intermodulation interference in the surrounding environment through the built-in spectrum analysis function of the satellite communication detection device.

[0175] The detection process provided in this embodiment is described as follows:

[0176] 1) Beam coverage evaluation test process.

[0177] In the satellite communication test equipment, an independent-of-network test method is adopted, so that through fast antenna control, the acquisition and measurement of multi-beam coverage data in the airspace can be realized. The coverage test data of the satellite communication test equipment accurately reflects the coverage multiplicity, overlapping coverage, time-domain and airspace coverage rate indicators of satellite communication. The beam coverage evaluation test process is as follows:

[0178] 1a) Formulate a test plan: Determine the test area, test time, test satellite number, and test equipment;

[0179] 1b) The satellite communication test equipment completes the environment setup, powers on and starts up, and formulates a test task.

[0180] 1c) The satellite communication test equipment receives the test task issued by the external master control equipment, completes the test configuration and starts. Periodically report the beam coverage test data (i.e., the detection result) to the external master control equipment.

[0181] 1d) After completing the test task, the external master control equipment terminates the test.

[0182] 1e) According to the statistical analysis report, troubleshoot and locate the problems found.

[0183] 2) Modulation interference evaluation test process.

[0184] The satellite communication test equipment can provide test data for time offset analysis, frequency offset analysis, identification interference analysis, frequency reuse interference analysis, time-domain interference analysis, and frequency-domain interference analysis through its internal modulation interference detection function for each system. The modulation interference evaluation test is mainly used to evaluate the regional interference level of the network, as well as the existing interference problems and interference points. The interference sources mainly come from the network planning, parameter configuration, hardware failures within the system, and various frequency-domain interferences from external systems. The modulation interference evaluation test process is as follows:

[0185] 2a) Formulate a test plan: Determine the test area, test time, test satellite number, and test equipment;

[0186] 2b) The satellite communication test equipment completes the environment setup, powers on and starts up, and formulates a test task.

[0187] 2c) The satellite communication test equipment receives the test task issued by the external master control equipment, completes the test configuration and starts. Periodically report the modulation interference test data (i.e., the detection result) to the external master control equipment.

[0188] 2d) After completing the test tasks, the external master device terminates the test.

[0189] 2e) Based on the statistical analysis report, troubleshoot and locate the problems found.

[0190] 3) Interference location test process.

[0191] Interference location is mainly carried out by satellite communication test equipment. With the help of the spectrum analysis function built into the satellite communication test equipment and a directional antenna, interference sources such as harmonics, spurious emissions, and intermodulation are captured and located. The test process of interference location includes interference discovery, interference troubleshooting, interference location, problem handling, and test verification. The interference location process is as follows:

[0192] Interference discovery: By analyzing the beam coverage assessment test or modulation interference assessment test data, it is found that there is interference at a certain time and space.

[0193] Interference troubleshooting: Within the time and space range where interference exists, repeat the test verification to confirm the existence of interference. Analyze the interference in the test data. If the interference is related to time offset, frequency offset, identification interference, or frequency reuse interference, then this interference belongs to in-system interference (i.e., modulation interference). Abnormal time offset and frequency offset may be related to the base station clock source, satellite card, GPS lock status, and base station frame offset configuration parameters. Identification interference and frequency reuse interference are related to network planning or configuration parameters. After completing hardware repair or network configuration parameter update, re-conduct the coverage test verification and interference assessment test for verification.

[0194] If, after interference analysis, the interference is not related to in-system interference, then on-site interference location is required to check whether the interference comes from out-of-system interference. Use the spectrum analysis mode to view the spectrum in the in-band, out-of-band, and transition bands for interference troubleshooting and location. The main sources of out-of-system interference include:

[0195] 1) Interference caused by adjacent frequency bands of surrounding base stations;

[0196] 2) Interference caused by personal radio equipment;

[0197] 3) Interference caused by high-power jammers and shielding devices;

[0198] 4) Interference from surrounding radio bridge-like equipment.

[0199] Check whether the interference is related to time, whether it is periodic interference, continuous interference, or random interference. According to different interference characteristics, conduct on-site interference location targeted.

[0200] Interference location:

[0201] In implementation, drive to the site and repeatedly verify the existence of interference through beam coverage assessment tests or modulation interference assessment tests. After finding the pattern, start localizing the interference using in-vehicle test equipment and portable test equipment to locate the source.

[0202] Connect and power on the satellite communication detection equipment. Configure the satellite communication detection equipment to work in the spectrum analysis test mode through the local display and control equipment, and start the test.

[0203] The satellite communication detection equipment periodically reports interference test data to the display and control equipment through the master control equipment. The reported data combines longitude, latitude, and time information to form a test sampling data packet. The information of the data packet includes timestamp, longitude, latitude, test frequency band power spectrum, etc. On the display and control equipment side, the test data can be displayed in real time in multiple ways such as GIS (Geographic Information System), bar charts, and tables.

[0204] Through the real-time display and playback functions of the display and control equipment, it is possible to observe whether there are abnormalities in the power spectrum in the test frequency band, including power abnormalities in the in-band, out-of-band, and transition bands.

[0205] According to the surrounding environmental characteristics, use the satellite communication detection equipment and a directional antenna. By continuously adjusting the azimuth and elevation angles of the directional antenna, judge the direction of the interference based on the high and low states of the real-time power spectrum signal. Until the strongest interference direction is locked.

[0206] Problem handling and regression verification: After negotiating to resolve the interference source, the disappearance of the interference source can be confirmed through spectrum analysis, and regression confirmation can be carried out through the coverage test or interference assessment test that discovered the problem.

[0207] The satellite communication detection method provided in this embodiment can perform beam coverage assessment tests, modulation interference assessment tests, and interference localization for satellite communication systems, as well as test evaluations for timing and navigation enhancement, and support tests for wireless network optimization, network quality monitoring, interference testing, and localization. It supports asynchronous spectrum analysis, beam synchronous spectrum analysis, and vector signal analysis functions.

[0208] Based on the same inventive concept, the embodiment of the present invention also provides a satellite communication signal detection device. Since this device is the device in the method of this embodiment of the present invention, and the principle of this device to solve problems is similar to that of this method, the implementation of this device can refer to the implementation of the method, and the repeated parts will not be elaborated.

[0209] As Figure 5 shown, the device includes:

[0210] A signal acquisition module 500, configured to acquire radio frequency signals in different frequency bands in satellite communication;

[0211] An interference detection module 501, configured to perform interference detection on the collected radio frequency signals of different frequency bands according to the interference detection method corresponding to the evaluation index, and determine the detection results corresponding to the radio frequency signals of different frequency bands;

[0212] An interference localization module 502, configured to perform localization of the interference source according to the detection results corresponding to the radio frequency signals of different frequency bands.

[0213] As an optional implementation manner, the evaluation index includes a beam coverage index of satellite communication.

[0214] As an optional implementation manner, the interference detection module 501 is specifically configured to:

[0215] Collect multiple beams of radio frequency signals of different frequency bands through antenna control technology and anti-interference beam search technology;

[0216] Perform interference detection related to beam coverage on the multiple beams of radio frequency signals of different frequency bands collected, and determine the detection results corresponding to the radio frequency signals of different frequency bands.

[0217] As an optional implementation manner, the interference detection module 501 is specifically configured to:

[0218] Perform quality measurement and received power measurement of the common channel on the multiple beams of radio frequency signals of different frequency bands collected, and determine the detection results corresponding to the radio frequency signals of different frequency bands.

[0219] As an optional implementation manner, the interference detection module 501 is specifically configured to:

[0220] Perform quality measurement of the common channel on the multiple beams of radio frequency signals of different frequency bands collected, and determine the satellite signal coverage quality corresponding to the multiple beams of different frequency bands;

[0221] Perform received power measurement of the common channel on the multiple beams of radio frequency signals of different frequency bands collected, and determine the satellite signal coverage intensity corresponding to the multiple beams of different frequency bands.

[0222] As an optional implementation manner, the evaluation index includes a satellite communication modulation interference index.

[0223] As an optional implementation manner, the interference detection module 501 is specifically configured to:

[0224] Convert the collected radio frequency signals of different frequency bands into baseband signals to obtain baseband signals corresponding to different frequency bands;

[0225] Perform interference detection in the time domain and frequency domain on the baseband signals corresponding to different frequency bands, and determine the detection results corresponding to the radio frequency signals of different frequency bands.

[0226] As an alternative implementation, the interference detection module 501 is specifically configured to:

[0227] For the baseband signal corresponding to each frequency band, perform at least one interference detection of time offset detection, frequency offset detection, identification detection, frequency reuse detection, time domain detection, and frequency domain detection on the baseband signal, and determine the detection result of the radio frequency signal corresponding to the baseband signal.

[0228] As an alternative implementation, the interference location module 502 is specifically configured to:

[0229] Locate the interference source according to the abnormal data in the detection results corresponding to the radio frequency signals of different frequency bands.

[0230] As an alternative implementation, the interference location module 502 is specifically configured to:

[0231] When the interference source is satellite communication modulation interference, determine that the interference source belongs to at least one of network planning interference, parameter configuration interference, timing interference, frequency offset interference, time domain and frequency domain burst interference, and hardware fault interference according to the abnormal data in the detection results corresponding to the radio frequency signals of different frequency bands.

[0232] As an alternative implementation, the interference location module 502 is specifically configured to:

[0233] When the interference source is not satellite communication modulation interference, perform frequency domain conversion on the radio frequency signal according to the abnormal data in the detection results corresponding to the radio frequency signals of different frequency bands to obtain a frequency domain signal;

[0234] Perform spectrum analysis on the frequency domain signal to obtain the power spectrum corresponding to the radio frequency signal;

[0235] Locate the interference source according to the abnormal data of the power spectrum.

[0236] As an alternative implementation, the interference location module 502 is specifically configured to:

[0237] Determine the power spectrum corresponding to the received radio frequency signal by adjusting the antenna reception direction of the radio frequency signal;

[0238] Determine the azimuth of the interference source according to the signal high and low state of the power spectrum.

[0239] As an alternative implementation, the radio frequency signal includes a Global Navigation Satellite System (GNSS) radio frequency signal, and the device further includes a timing enhancement module specifically configured to:

[0240] Compare the collected GNSS radio frequency signal with the timing reference, and evaluate the timing enhancement performance according to the comparison result.

[0241] Based on the same inventive concept, an embodiment of the present invention further provides an electronic device. Since this electronic device is the electronic device in the method of the embodiment of the present invention, and the principle of this electronic device to solve problems is similar to that of the method, the implementation of this electronic device can refer to the implementation of the method, and the repeated parts will not be described again.

[0242] As Figure 6 shown, the electronic device includes a processor 600 and a memory 601. The memory 601 is used to store programs executable by the processor 600, and the processor 600 is used to read the programs in the memory 601 and execute the following steps:

[0243] Collect radio frequency signals of different frequency bands in satellite communication;

[0244] According to the interference detection method corresponding to the evaluation index, perform interference detection on the collected radio frequency signals of different frequency bands, and determine the detection results corresponding to the radio frequency signals of different frequency bands;

[0245] Locate the interference source according to the detection results corresponding to the radio frequency signals of different frequency bands.

[0246] As an optional implementation manner, the evaluation index includes the beam coverage index of satellite communication.

[0247] As an optional implementation manner, the processor 600 is specifically configured to execute:

[0248] Collect multiple beams of radio frequency signals of different frequency bands through antenna control technology and anti-interference beam search technology;

[0249] Perform interference detection related to beam coverage on the collected multiple beams of radio frequency signals of different frequency bands, and determine the detection results corresponding to the radio frequency signals of different frequency bands.

[0250] As an optional implementation manner, the processor 600 is specifically configured to execute:

[0251] Perform quality measurement of the common channel and receive power measurement on the collected multiple beams of radio frequency signals of different frequency bands, and determine the detection results corresponding to the radio frequency signals of different frequency bands.

[0252] As an optional implementation manner, the processor 600 is specifically configured to execute:

[0253] Perform quality measurement of the common channel on the collected multiple beams of radio frequency signals of different frequency bands, and determine the satellite signal coverage quality corresponding to the multiple beams of different frequency bands;

[0254] Perform the reception power measurement of the common channel for the multiple beams of the RF signals in different frequency bands collected, and determine the satellite signal coverage intensity corresponding to the multiple beams in different frequency bands.

[0255] As an alternative implementation, the evaluation index includes the satellite communication modulation interference index.

[0256] As an alternative implementation, the processor 600 is specifically configured to execute:

[0257] Convert the RF signals in different frequency bands collected into baseband signals to obtain the baseband signals corresponding to different frequency bands;

[0258] Perform interference detection in the time domain and frequency domain on the baseband signals corresponding to different frequency bands to determine the detection results corresponding to the RF signals in different frequency bands.

[0259] As an alternative implementation, the processor 600 is specifically configured to execute:

[0260] For each baseband signal corresponding to a frequency band, perform at least one interference detection of time offset detection, frequency offset detection, identification detection, frequency reuse detection, time domain detection, and frequency domain detection on the baseband signal to determine the detection result of the RF signal corresponding to the baseband signal.

[0261] As an alternative implementation, the processor 600 is specifically configured to execute:

[0262] Locate the interference source according to the abnormal data in the detection results corresponding to the RF signals in different frequency bands.

[0263] As an alternative implementation, the processor 600 is specifically configured to execute:

[0264] When the interference source is satellite communication modulation interference, determine that the interference source belongs to at least one of network planning interference, parameter configuration interference, timing interference, frequency offset interference, time domain and frequency domain burst interference, and hardware failure interference according to the abnormal data in the detection results corresponding to the RF signals in different frequency bands.

[0265] As an alternative implementation, the processor 600 is specifically configured to execute:

[0266] When the interference source is not satellite communication modulation interference, convert the RF signal into a frequency domain signal according to the abnormal data in the detection results corresponding to the RF signals in different frequency bands;

[0267] Perform spectrum analysis on the frequency domain signal to obtain the power spectrum corresponding to the RF signal;

[0268] Locate the interference source according to the abnormal data of the power spectrum.

[0269] As an alternative implementation, the processor 600 is specifically configured to execute:

[0270] Determine the power spectrum corresponding to the received radio frequency signal by adjusting the antenna reception direction of the radio frequency signal;

[0271] Determine the azimuth of the interference source according to the signal high and low state of the power spectrum.

[0272] As an alternative implementation, the radio frequency signal includes a Global Navigation Satellite System (GNSS) radio frequency signal, and the processor 600 is further specifically configured to execute:

[0273] Compare the collected GNSS radio frequency signal with the timing reference, and evaluate the timing enhancement performance according to the comparison result.

[0274] Based on the same inventive concept, an embodiment of the present disclosure provides a computer storage medium, which includes: computer program code, when the computer program code runs on a computer, it causes the computer to execute any one of the satellite communication signal detection methods described above. Since the principle of solving problems by the above computer storage medium is similar to that of the satellite communication signal detection method, the implementation of the above computer storage medium can refer to the implementation of the method, and the repeated parts will not be described again.

[0275] In a specific implementation process, the computer storage medium may include: various storage media that can store program code, such as a Universal Serial Bus Flash Drive (USB), a mobile hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disc.

[0276] Based on the same inventive concept, an embodiment of the present disclosure further provides a computer program product, which includes: computer program code, when the computer program code runs on a computer, it causes the computer to execute any one of the satellite communication signal detection methods described above. Since the principle of solving problems by the above computer program product is similar to that of the satellite communication signal detection method, the implementation of the above computer program product can refer to the implementation of the method, and the repeated parts will not be described again.

[0277] A computer program product may employ any combination of one or more readable media. The readable media can be a readable signal medium or a readable storage medium. A readable storage medium can be, for example, but is not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the readable storage medium include: an electrical connection having one or more wires, a portable disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0278] Those skilled in the art will appreciate that the embodiments of the present invention can be provided as a method, a system, or a computer program product. Accordingly, the present invention can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present invention can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) that contain computer-usable program code.

[0279] The present invention is described with reference to the flowcharts and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the present invention. It should be understood that each flow and / or block in the flowcharts and / or block diagrams, and combinations of flows and / or blocks in the flowcharts and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to the processors of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to produce a machine, such that the instructions executed by the processors of the computer or other programmable data processing devices produce a device for implementing the functions specified in Figure 1 one or more of the flows Figure 1 or blocks or combinations of blocks.

[0280] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer-readable memory produce a manufacture including an instruction device that implements the functions specified in Figure 1 one or more of the flows Figure 1 or blocks or combinations of blocks.

[0281] These computer program instructions can also be loaded onto a computer or other programmable data processing device, such that a series of operation steps are performed on the computer or other programmable device to produce a computer-implemented process, and thus the instructions executed on the computer or other programmable device provide for implementing the functions in the flowFigure 1 one process or multiple processes and / or blocks Figure 1 steps of functions specified in one block or multiple blocks.

[0282] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and its equivalent technologies, the present invention also intends to include these modifications and variations.

Claims

1. A method for detecting satellite communication signals, characterized in that, the method includes: collecting radio frequency signals of different frequency bands in satellite communication; performing interference detection on the collected radio frequency signals of different frequency bands according to the interference detection method corresponding to the evaluation index, and determining the detection results corresponding to the radio frequency signals of different frequency bands; locating the interference source according to the detection results corresponding to the radio frequency signals of different frequency bands.

2. The method according to claim 1, characterized in that, the evaluation index includes the beam coverage index of satellite communication.

3. The method according to claim 2, characterized in that, performing interference detection on the collected radio frequency signals of different frequency bands according to the interference detection method corresponding to the evaluation index, and determining the detection results corresponding to the radio frequency signals of different frequency bands, including: collecting multiple beams of radio frequency signals of different frequency bands through antenna control technology and anti-interference beam search technology; performing interference detection related to beam coverage on the multiple beams of radio frequency signals of different frequency bands collected, and determining the detection results corresponding to the radio frequency signals of different frequency bands.

4. The method according to claim 3, characterized in that, performing interference detection related to beam coverage on the multiple beams of radio frequency signals of different frequency bands collected, and determining the detection results corresponding to the radio frequency signals of different frequency bands, including: performing quality measurement and received power measurement of the common channel on the multiple beams of radio frequency signals of different frequency bands collected, and determining the detection results corresponding to the radio frequency signals of different frequency bands.

5. The method according to claim 4, characterized in that, performing quality measurement and received power measurement of the common channel on the multiple beams of radio frequency signals of different frequency bands collected, and determining the detection results corresponding to the radio frequency signals of different frequency bands, including: performing quality measurement of the common channel on the multiple beams of radio frequency signals of different frequency bands collected, and determining the satellite signal coverage quality corresponding to the multiple beams of different frequency bands; performing received power measurement of the common channel on the multiple beams of radio frequency signals of different frequency bands collected, and determining the satellite signal coverage intensity corresponding to the multiple beams of different frequency bands.

6. The method according to claim 1, characterized in that, the evaluation index includes the satellite communication modulation interference index.

7. The method according to claim 6, characterized in that, performing interference detection on the collected radio frequency signals of different frequency bands according to the interference detection method corresponding to the evaluation index, and determining the detection results corresponding to the radio frequency signals of different frequency bands, including: converting the collected radio frequency signals of different frequency bands into baseband signals to obtain baseband signals corresponding to different frequency bands; performing interference detection in the time domain and frequency domain on the baseband signals corresponding to different frequency bands, and determining the detection results corresponding to the radio frequency signals of different frequency bands.

8. The method according to claim 7, characterized in that, performing interference detection in the time domain and frequency domain on the baseband signals corresponding to different frequency bands, and determining the detection results corresponding to the radio frequency signals of different frequency bands, including: For each baseband signal corresponding to each frequency band, perform at least one interference detection among time offset detection, frequency offset detection, identification detection, frequency reuse detection, time domain detection, and frequency domain detection on the baseband signal, and determine the detection result of the radio frequency signal corresponding to the baseband signal.

9. The method according to claim 1, wherein, perform localization of the interference source according to the detection results corresponding to radio frequency signals of different frequency bands, including: localize the interference source according to the abnormal data in the detection results corresponding to radio frequency signals of different frequency bands.

10. The method according to claim 9, wherein, the localizing the interference source according to the abnormal data in the detection results corresponding to radio frequency signals of different frequency bands includes: when the interference source is satellite communication modulation interference, determine that the interference source belongs to at least one of network planning interference, parameter configuration interference, timing interference, frequency offset interference, time domain and frequency domain burst interference, and hardware failure interference according to the abnormal data in the detection results corresponding to radio frequency signals of different frequency bands.

11. The method according to claim 9, wherein, the localizing the interference source according to the abnormal data in the detection results corresponding to radio frequency signals of different frequency bands includes: when the interference source is not satellite communication modulation interference, perform frequency domain conversion on the radio frequency signal according to the abnormal data in the detection results corresponding to radio frequency signals of different frequency bands to obtain a frequency domain signal; perform spectrum analysis on the frequency domain signal to obtain the power spectrum corresponding to the radio frequency signal; localize the interference source according to the abnormal data of the power spectrum.

12. The method according to claim 11, wherein, the localizing the interference source according to the abnormal data of the power spectrum includes: determine the power spectrum corresponding to the received radio frequency signal by adjusting the antenna receiving direction of the radio frequency signal; determine the azimuth of the interference source according to the signal high and low state of the power spectrum.

13. The method according to any one of claims 1 to 12, wherein, the radio frequency signal includes a Global Navigation Satellite System (GNSS) radio frequency signal, and the method further includes: compare the collected GNSS radio frequency signal with the timing reference, and evaluate the timing enhancement performance according to the comparison result.

14. A satellite communication signal detection device, wherein, the device includes: a signal acquisition module, configured to acquire radio frequency signals of different frequency bands in satellite communication; an interference detection module, configured to perform interference detection on the acquired radio frequency signals of different frequency bands according to the interference detection method corresponding to the evaluation index, and determine the detection results corresponding to the radio frequency signals of different frequency bands; an interference localization module, configured to perform localization of the interference source according to the detection results corresponding to the radio frequency signals of different frequency bands.

15. The device according to claim 14, wherein, the evaluation index includes the beam coverage index of satellite communication.

16. The device according to claim 15, wherein, the interference detection module is specifically configured to: acquire multiple beams of radio frequency signals of different frequency bands through antenna control technology and anti-interference beam search technology; Perform interference detection related to beam coverage on multiple beams of RF signals in different frequency bands collected, and determine the detection results corresponding to the RF signals in different frequency bands.

17. The device according to claim 16, wherein, the interference detection module is specifically configured to: Perform quality measurement and received power measurement of the common channel on multiple beams of RF signals in different frequency bands collected, and determine the detection results corresponding to the RF signals in different frequency bands.

18. The device according to claim 17, wherein, the interference detection module is specifically configured to: Perform quality measurement of the common channel on multiple beams of RF signals in different frequency bands collected, and determine the satellite signal coverage quality corresponding to the multiple beams in different frequency bands; Perform received power measurement of the common channel on multiple beams of RF signals in different frequency bands collected, and determine the satellite signal coverage intensity corresponding to the multiple beams in different frequency bands.

19. The device according to claim 14, wherein, the evaluation index includes a satellite communication modulation interference index.

20. The device according to claim 19, wherein, the interference detection module is specifically configured to: Convert the RF signals in different frequency bands collected into baseband signals to obtain baseband signals corresponding to different frequency bands; Perform interference detection in the time domain and frequency domain on the baseband signals corresponding to different frequency bands, and determine the detection results corresponding to the RF signals in different frequency bands.

21. The device according to claim 20, wherein, the interference detection module is specifically configured to: For each baseband signal corresponding to a frequency band, perform at least one interference detection of time offset detection, frequency offset detection, identification detection, frequency reuse detection, time domain detection, and frequency domain detection on the baseband signal, and determine the detection result of the RF signal corresponding to the baseband signal.

22. The device according to claim 14, wherein, the interference location module is specifically configured to: Locate the interference source according to the abnormal data in the detection results corresponding to the RF signals in different frequency bands.

23. The device according to claim 22, wherein, the interference location module is specifically configured to: When the interference source is satellite communication modulation interference, determine that the interference source belongs to at least one of network planning interference, parameter configuration interference, timing interference, frequency offset interference, time domain and frequency domain burst interference, and hardware failure interference according to the abnormal data in the detection results corresponding to the RF signals in different frequency bands.

24. The device according to claim 22, wherein, the interference location module is specifically configured to: When the interference source is not satellite communication modulation interference, perform frequency domain conversion on the RF signal according to the abnormal data in the detection results corresponding to the RF signals in different frequency bands to obtain a frequency domain signal; Perform spectrum analysis on the frequency domain signal to obtain the power spectrum corresponding to the RF signal; Locate the interference source according to the abnormal data of the power spectrum.

25. The device according to claim 24, wherein, the interference location module is specifically configured to: Determine the power spectrum corresponding to the received RF signal by adjusting the antenna reception direction of the RF signal. Determine the direction of the interference source according to the high and low states of the signal in the power spectrum.

26. The device according to any one of claims 14 to 25, characterized in that the radio frequency signal includes a Global Navigation Satellite System (GNSS) radio frequency signal, and the device further includes a timing enhancement module specifically configured to: Compare the collected GNSS radio frequency signal with the timing reference, and evaluate the timing enhancement performance according to the comparison result.

27. An electronic device, characterized in that the electronic device includes a processor and a memory, the memory is used to store programs executable by the processor, and the processor is used to read the programs in the memory and execute the steps of the method according to any one of claims 1 to 13.

28. A computer storage medium, on which a computer program is stored, characterized in that when the program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 13.

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