A non-geostationary satellite ground terminal radio signal blocking method and system

Abstract

The application provides a non-geostationary orbit satellite ground terminal radio signal blocking method and system, which can, when satellite communication blocking of radio signals between a non-geostationary orbit satellite and a ground terminal device is needed, determine the beam coverage range of the non-geostationary orbit satellite, monitor the signals in the beam coverage range, and if downlink signals or uplink signals meeting the set signal characteristics appear, quickly determine the position of the ground terminal device to be blocked according to the signal characteristics, and perform precise radio signal intervention and blocking on the position, effectively filling the blank of the application of existing radio blocking technology between a non-geostationary orbit satellite and a ground terminal.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wireless communication, in particular to a non-geostationary satellite ground terminal radio signal blocking method and system. BACKGROUND

[0002] Non-geostationary satellite refers to a man-made satellite running outside the geostationary orbit. Compared with the satellite running in the geostationary orbit, the non-geostationary satellite can keep stationary relative to the earth, and the non-geostationary satellite can run in the low earth orbit, the medium earth orbit or the high elliptical orbit, and the position relative to the earth will move. In terms of wireless communication, the non-geostationary satellite communicates with the user terminal device on the ground through radio waves.

[0003] Radio signal blocking is a technology of interfering or blocking radio transmission frequency, frequency band, etc., which can achieve the effect of preventing illegal or unnecessary radio signal propagation, and is widely used in examination cheating prevention, unmanned aerial vehicle countermeasures and other fields. However, the application of radio signal blocking technology between the non-geostationary satellite and the user terminal device on the ground is still blank, and how to interfere with and block the wireless communication between the non-geostationary satellite and the user terminal device on the ground becomes a problem to be solved. SUMMARY

[0004] Therefore, the embodiments of the present application provide a non-geostationary satellite ground terminal radio signal blocking method and system to block the radio signal between the non-geostationary satellite and the terminal device on the ground, so as to reduce or prevent the propagation of unnecessary radio signal.

[0005] In a first aspect, the embodiments of the present application provide a non-geostationary satellite ground terminal radio signal blocking method, wherein the method comprises:

[0006] Obtaining the beam landing situation of the non-geostationary satellite to be blocked, wherein the beam landing situation comprises the beam coverage range of the non-geostationary satellite;

[0007] Monitoring the downlink signal of the non-geostationary satellite and the uplink signal sent by the ground terminal device in the beam coverage range, and determining the first to-be-identified signal feature of the downlink signal and the second to-be-identified signal feature of the uplink signal;

[0008] If the first to-be-identified signal feature matches the signal feature of the set satellite downlink signal with a first preset matching degree threshold, and the second to-be-identified signal feature matches the signal feature of the set terminal uplink signal with a second preset matching degree threshold, the position information of the target ground terminal device corresponding to the second to-be-identified signal feature is determined according to the second to-be-identified signal feature.

[0009] starting a blocking procedure, and transmitting a blocking signal to the location information, wherein the blocking signal is used to block the communication connection between the ground terminal device and the non-geostationary satellite.

[0010] In some possible embodiments, the monitoring the downlink signal of the non-geostationary satellite and the uplink signal transmitted by the ground terminal device within the beam coverage range comprises:

[0011] monitoring the downlink signal within the beam coverage range, performing spectrum analysis on the monitored downlink signal, and determining a spectrum analysis result of the downlink signal, wherein the spectrum analysis result of the downlink signal comprises: no signal, monitoring a downlink beacon signal of the non-geostationary satellite, and monitoring a downlink service signal of the non-geostationary satellite.

[0012] if the spectrum analysis result of the downlink signal is monitoring the downlink beacon signal of the non-geostationary satellite and monitoring the downlink service signal of the non-geostationary satellite, determining a signal form of the downlink service signal according to a set monitoring link calculation rule.

[0013] if the signal form of the downlink service signal is a main lobe signal, starting an uplink signal monitoring procedure, and monitoring the uplink signal within the beam coverage range.

[0014] In some possible embodiments, the method further comprises:

[0015] if the signal form of the downlink service signal is a side lobe signal, marking the downlink service signal as not blocking the downlink service signal.

[0016] In some possible embodiments, the determining the first to-be-identified signal feature of the downlink signal and the second to-be-identified signal feature of the uplink signal comprises:

[0017] performing spectrum analysis on the downlink signal, and determining one or more of the frequency, amplitude, phase, and bandwidth of the downlink signal as the first to-be-identified signal feature of the downlink signal.

[0018] performing spectrum analysis on the uplink signal, and determining one or more of the frequency, amplitude, phase, and bandwidth of the uplink signal as the second to-be-identified signal feature of the uplink signal.

[0019] In some possible embodiments, the set signal feature of the downlink signal and the set signal feature of the uplink signal are determined in advance according to satellite communication parameters of the non-geostationary satellite.

[0020] In some possible embodiments, the method is applied to a monitoring device, and the position information of the target ground terminal device corresponding to the second to-be-identified signal feature is determined according to the second to-be-identified signal feature, including:

[0021] The terminal search signal is sent to each signal search device in the beam coverage range, so that each signal search device searches for the position information of the target ground terminal device based on the terminal search signal, wherein the terminal search signal carries the target second to-be-identified signal feature with a signal feature matching degree greater than the second preset matching threshold.

[0022] In some possible embodiments, the beam landing situation further includes a beam coverage time interval of the non-geostationary satellite for the to-be-blocked area, and the method further includes:

[0023] The start blocking instruction and the beam coverage time interval are sent to a blocking device in the beam coverage range, so that the blocking device starts a working mode in the beam coverage time interval, wherein a working period of the working mode is consistent with the beam coverage time interval.

[0024] In a second aspect, an embodiment of the present application provides a non-geostationary satellite ground terminal radio signal blocking system, wherein the system includes:

[0025] A monitoring device is configured to acquire a beam landing situation of a non-geostationary satellite to be blocked, wherein the beam landing situation includes a beam coverage range of the non-geostationary satellite, and the monitoring device is further configured to monitor a downlink signal of the non-geostationary satellite and an uplink signal sent by a ground terminal device in the beam coverage range, and determine a first to-be-identified signal feature of the downlink signal and a second to-be-identified signal feature of the uplink signal.

[0026] A signal search device is configured to determine position information of a target ground terminal device corresponding to the second to-be-identified signal feature according to the second to-be-identified signal feature, if a signal feature matching degree of the first to-be-identified signal feature and a set satellite downlink signal is greater than a first preset matching threshold, and a signal feature matching degree of the second to-be-identified signal feature and a set terminal uplink signal is greater than a second preset matching threshold.

[0027] A blocking device is configured to start a blocking process and emit a blocking signal to the position information, wherein the blocking signal is used to block a communication connection between the ground terminal device and the non-geostationary satellite.

[0028] In some possible embodiments, the signal search device is specifically configured to:

[0029] monitoring the downlink signal in the beam coverage, performing spectrum analysis on the monitored downlink signal, and determining a spectrum analysis result of the downlink signal, wherein the spectrum analysis result of the downlink signal comprises: no signal, monitoring of the downlink beacon signal of the non-geostationary satellite, and monitoring of the downlink service signal of the non-geostationary satellite;

[0030] if the spectrum analysis result of the downlink signal is monitoring of the downlink beacon signal of the non-geostationary satellite and monitoring of the downlink service signal of the non-geostationary satellite, determining a signal form of the downlink service signal according to a set monitoring link calculation rule;

[0031] if the signal form of the downlink service signal is a main lobe signal, starting an uplink signal monitoring process to monitor the uplink signal in the beam coverage.

[0032] In some possible embodiments, the signal searching device is further configured to:

[0033] performing spectrum analysis on the downlink signal, and determining one or more of frequency, amplitude, phase, and bandwidth of the downlink signal as a first to-be-identified signal feature of the downlink signal;

[0034] performing spectrum analysis on the uplink signal, and determining one or more of frequency, amplitude, phase, and bandwidth of the uplink signal as a second to-be-identified signal feature of the uplink signal.

[0035] In some possible embodiments, the signal searching device is further configured to:

[0036] if the signal form of the downlink service signal is a side lobe signal, marking the downlink service signal as not blocking the downlink service signal.

[0037] In some possible embodiments, the signal searching device is further configured to:

[0038] the set signal feature of the downlink signal and the set signal feature of the uplink signal are determined in advance according to satellite communication parameters of the non-geostationary satellite.

[0039] In some possible embodiments, the monitoring device is specifically configured to:

[0040] sending a terminal searching signal to each signal searching device in the beam coverage, so that each signal searching device searches for position information of the target ground terminal device based on the terminal searching signal, wherein the terminal searching signal carries a target second to-be-identified signal feature with a signal feature matching degree greater than the second preset matching threshold.

[0041] In some possible embodiments, the beam landing condition further includes a beam coverage time interval of the non-geostationary satellite for the region to be blocked, and the blocking device is specifically configured to:

[0042] The blocking device in the beam coverage range is sent with a start-blocking instruction and the beam coverage time interval, so that the blocking device starts a working mode in the beam coverage time interval, and a working period of the working mode is consistent with the beam coverage time interval.

[0043] In a third aspect, an electronic device is provided, and the electronic device includes a processor and a memory storing a program, where the program includes instructions that, when executed by the processor, cause the processor to perform the non-geostationary satellite ground terminal radio signal blocking method of the first aspect.

[0044] In a fourth aspect, a non-transitory computer-readable storage medium storing computer instructions is provided, and the computer instructions are used to cause a computer to perform the non-geostationary satellite ground terminal radio signal blocking method of the first aspect.

[0045] Advantages of the present application:

[0046] The present application provides a non-geostationary satellite ground terminal radio signal blocking method and system, where the method obtains a beam landing condition of a non-geostationary satellite to be blocked, monitors downlink signals of the non-geostationary satellite and uplink signals sent by a ground terminal according to a beam coverage range of the non-geostationary satellite in the beam landing condition, and determines a first to-be-identified signal feature of the downlink signals and a second to-be-identified signal feature of the uplink signals. The first to-be-identified signal feature and the second to-be-identified signal feature are matched with a set signal feature, and if a matching degree is greater than a set threshold, it is indicated that there is a communication between a ground terminal and an over-the-top non-geostationary satellite in the beam coverage range, and a blocking process is started to emit a blocking signal to a position where a target ground terminal device exists and communicates with the non-geostationary satellite to be blocked, so as to block the communication connection between the ground terminal device and the non-geostationary satellite.

[0047] With the selection of the embodiment of the present application, when it is needed to block the satellite communication of the radio signal between the non-geostationary orbit satellite and the ground terminal device, the signal in the beam coverage range can be monitored after the beam coverage range of the non-geostationary orbit satellite is determined, if the downlink signal and the uplink signal meeting the set signal characteristics appear, the position of the ground terminal device needing to be blocked is quickly determined according to the signal characteristics, and the precise radio signal interference and blocking are performed for the position, which effectively makes up for the blank of the application of the existing radio blocking technology between the non-geostationary orbit satellite and the ground terminal. BRIEF DESCRIPTION OF DRAWINGS

[0048] In the following description of the exemplary embodiments in conjunction with the drawings, more details, features and advantages of the present application are disclosed, in the drawings:

[0049] Figure 1 A flowchart of a non-geostationary orbit satellite ground terminal radio signal blocking method provided by an embodiment of the present application is shown;

[0050] Figure 2 A system architecture diagram of a non-geostationary orbit satellite ground terminal radio signal communication provided by an embodiment of the present application is shown;

[0051] Figure 3 Another system architecture diagram of a non-geostationary orbit satellite ground terminal radio signal blocking system provided by an embodiment of the present application is shown;

[0052] Figure 4 A structural block diagram of an exemplary electronic device capable of implementing the embodiments of the present application is shown. DETAILED DESCRIPTION

[0053] The embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although some embodiments of the present application are shown in the drawings, it should be understood that the present application can be implemented in various forms, and should not be interpreted as being limited to the embodiments set forth herein, but rather, these embodiments are provided to more thoroughly and completely understand the present application. It should be understood that the drawings and embodiments of the present application are only for exemplary purposes, and are not intended to limit the scope of protection of the present application.

[0054] It should be understood that each step described in the method embodiment of the present application can be executed in different order and / or in parallel. In addition, the method embodiment can include additional steps and / or omit the execution of the steps shown. The scope of the present application is not limited in this respect.

[0055] The term "include" and variations thereof used herein are open, inclusive, and do not exclude additional, unrecited elements or method steps. The term "based on" means "based, at least in part, on". The term "one embodiment" means "at least one embodiment". The term "another embodiment" means "at least one additional embodiment". The term "some embodiments" means "at least some embodiments". Related terms shall be construed accordingly. It is to be noted that the recitation of "first", "second", etc. concepts in the present application merely serves to differentiate different apparatuses, modules or units, and does not imply a sequence or interdependence of the functions performed by these apparatuses, modules or units.

[0056] It should be noted that the modification of "one" or "multiple" mentioned in the present application is illustrative but not restrictive, and those skilled in the art should understand that unless otherwise explicitly indicated in the context, it should be understood as "one or more".

[0057] As described in the background, non-geostationary orbit satellites communicate with ground terminal devices through radio wave signals, but there are relatively few radio signal blocking techniques currently applied between non-geostationary orbit satellites and ground terminal devices, and the application of radio signal blocking techniques in the communication scenario between non-geostationary orbit satellites and ground terminal devices is relatively rare. In view of this, the present application provides a non-geostationary orbit satellite ground terminal radio signal blocking method and system, wherein the method is applied to any electronic device with radio signal blocking capability, including but not limited to mobile terminal devices, computers, industrial control machines, signal analyzers, servers, etc. The system is a system that integrates signal analysis, signal processing, signal blocking and other radio signal blocking capabilities, which can be a hardware system, or a hardware system composed of electronic devices with different functions.

[0058] In the first aspect, the present application provides a non-geostationary orbit satellite ground terminal radio signal blocking method, which is applied to any electronic device with non-geostationary orbit satellite ground terminal radio signal blocking function, including but not limited to personal mobile terminal, computer or server, etc. As shown in the Figure 1 The method comprises the following steps:

[0059] S11, acquiring the beam landing situation of the non-geostationary orbit satellite to be blocked, wherein the beam landing situation comprises the beam coverage range of the non-geostationary orbit satellite;

[0060] S12, monitoring the downlink signal of the non-geostationary orbit satellite and the uplink signal sent by the ground terminal device in the beam coverage range, and determining the first to-be-identified signal feature of the downlink signal and the second to-be-identified signal feature of the uplink signal;

[0061] S13, if the first to-be-identified signal feature matches the signal feature of the set satellite downlink signal with a degree greater than a first preset matching degree threshold, and the second to-be-identified signal feature matches the signal feature of the set terminal uplink signal with a degree greater than a second preset matching degree threshold, the position information of the target ground terminal device corresponding to the second to-be-identified signal feature is determined according to the second to-be-identified signal feature;

[0062] S14, starting a blocking process and transmitting a blocking signal to the position information, wherein the blocking signal is used to block the communication connection between the ground terminal device and the non-geostationary satellite.

[0063] The method determines the first to-be-identified signal feature of the downlink signal and the second to-be-identified signal feature of the uplink signal by obtaining the beam landing situation of the non-geostationary satellite to be blocked, monitoring the downlink signal of the non-geostationary satellite and the uplink signal sent by the ground terminal in the beam coverage range according to the beam coverage range of the non-geostationary satellite in the beam landing situation, and then matching the first to-be-identified signal feature and the second to-be-identified signal feature with the set signal feature. If the matching degree is greater than the set threshold, it indicates that there is communication between the ground terminal and the over-the-top non-geostationary satellite in the current beam coverage range. At this time, a blocking process is started, and a blocking signal is transmitted to the position where the target ground terminal device exists for satellite communication with the non-geostationary satellite to be blocked, so as to block the communication connection between the ground terminal device and the non-geostationary satellite.

[0064] By selecting the embodiments of the present application, when it is necessary to block the satellite communication of the radio signal between the non-geostationary satellite and the ground terminal device, the signal in the beam coverage range can be monitored after the beam coverage range of the non-geostationary satellite is determined. If the downlink signal and the uplink signal meeting the set signal feature appear, the position of the ground terminal device to be blocked can be quickly determined according to the signal feature, and precise radio signal interference and blocking can be performed for the position, which effectively fills the blank of the existing radio blocking technology in the application between the non-geostationary satellite and the ground terminal.

[0065] The above steps S11-S14 will be exemplarily described below:

[0066] In the embodiments of the present application, the non-geostationary orbit satellite refers to a man-made satellite not in the geostationary orbit, which can be simply understood as a data base station located in the non-geostationary orbit of the earth, and the data base station can communicate with the devices on the earth through a specific frequency band, or can be understood as a communication satellite not in the geostationary orbit. In the embodiments of the present application, the terminal device on the ground refers to any type of electronic device with satellite communication capability, which can be a common personal mobile terminal, a computer, or some communication antenna, radio, etc.

[0067] In the embodiments of the present application, the principle of satellite communication can be as shown in Figure 2 The non-geostationary orbit satellite and the terminal device on the ground communicate with each other through radio signals, wherein the radio signals sent by the non-geostationary orbit satellite to the terminal device on the ground are downlink signals, and the radio signals sent by the terminal device on the ground to the non-geostationary orbit satellite are uplink signals. The radio signals between the non-geostationary orbit satellite and the terminal device on the ground are radio signals sent according to the corresponding communication frequency in the communication frequency band applied by the non-geostationary orbit satellite. Specifically, the beam landing condition of the non-geostationary orbit satellite can also include the signal frequency band corresponding to the radio signals used in the satellite communication service provided by the non-geostationary orbit satellite, that is, the working frequency band of the non-geostationary orbit satellite. Among them, the common working frequency bands include: Q / V frequency band: 51.4-52.4 GHz frequency band, Ku frequency band: 12-18 GHz, Ka frequency band: 27-40 GHz. As shown in Figure 2 The radio signals sent by the signal antenna in the non-geostationary orbit satellite can cover the area range of the earth's surface, which is the beam coverage range of the non-geostationary orbit satellite.

[0068] The non-geostationary orbit satellite and the earth do not rotate at the same frequency, and the non-geostationary orbit satellite will only produce signal coverage to a certain area of the earth at a time node. The signal coverage range produced by the non-geostationary orbit satellite to the earth is different with the different positions of the non-geostationary orbit satellite during operation. In the embodiments of the present application, the signal coverage area produced by the non-geostationary orbit satellite to the earth is simply referred to as the beam coverage range. The running speed and cycle of the non-geostationary orbit satellite depend on the actual orbit height of the non-geostationary orbit satellite, and the communication signal coverage range (i.e. the beam coverage range) of the non-geostationary orbit satellite depends on the running parameters set by the institution or enterprise to which the non-geostationary orbit satellite belongs.

[0069] In the embodiments of the present application, the non-geostationary orbit satellite to be blocked refers to a non-geostationary orbit satellite that is over the top in the current time period. How to determine whether a non-geostationary orbit satellite is over the top in the current time period can be determined by pre-acquiring the running parameters of each non-geostationary orbit satellite, combining the earth rotation period and the latitude and longitude of each region on the earth, and calculating by using a set mathematical calculation model. The set mathematical calculation model is a mathematical model for calculating the over-the-top time of a satellite in existing astrophysics, which can be referred to in related space technology documents, and is not the focus of the present application, and will not be described here.

[0070] In the embodiments of the present application, the beam landing condition of the non-geostationary orbit satellite is a general term for the situation of the entire transmitted wireless communication wave when the non-geostationary orbit satellite performs the data base station function, which involves many aspects, such as beam forming and control, inter-satellite link, ground station communication, etc. In the embodiments of the present application, the beam landing condition mainly involved includes the beam coverage range and the beam coverage time. The above determination of whether the current time period is over the top is to determine the beam coverage time of the non-geostationary orbit satellite, and the beam coverage range refers to the specific regional range on the earth that can be covered by the wireless communication wave transmitted by the non-geostationary orbit satellite when it is over the top.

[0071] As an implementation manner, the beam landing condition of the non-geostationary orbit satellite is pre-set by the production, research and development, and launching institution of the satellite. When the non-geostationary orbit satellite is launched to a specified orbit height, it will transmit wireless communication wave according to the pre-set frequency and run and work on the specified orbit according to the set running period. Based on this, when step S11 is performed, the beam landing condition of the corresponding non-geostationary orbit satellite launched by the satellite manufacturer can be obtained by referring to the running parameter information of each setting when the satellite is produced by the manufacturer. Alternatively, the beam landing condition of the non-geostationary orbit satellite can be obtained by referring to the running parameters of the satellite that has been running and recorded by the satellite manufacturer in a specified institution.

[0072] As described above, the non-geostationary orbit satellite is different from the geostationary orbit satellite. The non-geostationary orbit satellite is not relatively stationary with the earth, and thus the non-geostationary orbit satellite can only realize wireless communication wave coverage on the corresponding beam coverage range within the beam coverage time period. Based on this, in some possible embodiments, the beam landing condition further includes the beam coverage time interval of the non-geostationary orbit satellite for the to-be-blocked region. When step S11 is performed, the beam coverage time interval of the non-geostationary orbit satellite for the to-be-blocked region can also be obtained.

[0073] Specifically, the to-be-blocked area is an area range divided according to actual needs. As an implementation manner, the non-geostationary satellite to be blocked can also be inversely deduced from the to-be-blocked area, and the non-geostationary satellite whose running track overlaps with the to-be-blocked area according to the specific position information of the to-be-blocked area is queried, and then further combined with the time period to be blocked to screen, and the non-geostationary satellite meeting the screening condition is determined as the non-geostationary satellite to be blocked.

[0074] For example, if a high-level examination is to be held in Haidian District of Beijing from 2 pm to 5 pm, at this time, the satellite signal radio needs to be blocked in Haidian District of Beijing from 2 pm to 5 pm, at this time, the non-geostationary satellite that may pass over the head of Haidian District of Beijing needs to be screened. Specifically, whether the specific running track of each non-geostationary satellite in the current space overlaps with Haidian District of Beijing can be queried in advance, and if there is an overlap, the non-geostationary satellite whose beam coverage time interval overlaps with Haidian District of Beijing is screened, and whether the time when the non-geostationary satellite passes over the head of Haidian District of Beijing overlaps with the time from 2 pm to 5 pm is calculated, and if there is an overlap, the target non-geostationary satellite that will pass over the head of Haidian District of Beijing from 2 pm to 5 pm is screened as the non-geostationary satellite to be blocked.

[0075] As another implementation manner, when step S11 is performed, the existing satellite monitoring equipment can also be used to track the non-geostationary satellite in combination with the public running parameters of the non-geostationary satellite to obtain the specific beam coverage time interval and the beam coverage range of the non-geostationary satellite.

[0076] In some possible embodiments, since the non-geostationary satellite and the earth are not in relative static, when step S12 is performed, the downlink signal of the non-geostationary satellite in the beam coverage range can be monitored in the beam coverage time interval of the non-geostationary satellite, so that the energy consumption of the equipment when monitoring the signal can be saved, and the cost of radio blocking can be saved. In some possible embodiments, the monitoring of the downlink signal of the non-geostationary satellite and the uplink signal sent by the ground terminal equipment in the beam coverage range comprises:

[0077] S12-1, monitoring the downlink signal in the beam coverage range, and performing spectrum analysis on the monitored downlink signal to determine the spectrum analysis result of the downlink signal, wherein the spectrum analysis result of the downlink signal comprises: no signal, monitoring the downlink beacon signal of the non-geostationary satellite, and monitoring the downlink service signal of the non-geostationary satellite;

[0078] S12-2, if the result of the spectrum analysis of the downlink signal is that the downlink beacon signal of the non-geostationary satellite is monitored and the downlink service signal of the non-geostationary satellite is monitored, the signal form of the downlink service signal is determined according to the set monitoring link calculation rule;

[0079] S12-3, if the signal form of the downlink service signal is a main lobe signal, the uplink signal monitoring process is started, and the uplink signal in the beam coverage range is monitored.

[0080] Wherein, the downlink signal and the uplink signal are distinguished by the signal source equipment carried in the signal, the signal source equipment of the downlink signal is the non-geostationary satellite, and the signal source equipment of the uplink signal is the ground terminal equipment. As a possible implementation, when step S12 is executed, the existing satellite monitoring system can be called to monitor the downlink signal in the beam coverage range. Specifically, the existing satellite monitoring system can be used to receive the downlink satellite signal of the non-geostationary satellite by using the traditional parabolic system calculation method or phased array system calculation method. Then, according to the orbit height of the non-geostationary satellite to be blocked and the public operating parameters of the non-geostationary satellite to be blocked, the starting frequency and the ending frequency of the corresponding satellite communication working frequency band are set. The existing satellite monitoring system filters and converts the radio signal in the working frequency band. Wherein, the parabolic system calculation method or phased array system calculation method can refer to the related existing public calculation materials, and is not the focus of this paper, which will not be described here.

[0081] As an embodiment, on the basis of the starting frequency and the ending frequency of the working frequency band, the signal spectrum analysis parameters such as RBW, VBW, signal maximum level, signal minimum level, etc. can also be set according to the orbit height and operating parameters of the non-geostationary satellite to be blocked. Wherein, RBW (Resolution Bandwidth): the bandwidth parameter used by the spectrum analyzer when performing spectrum analysis on the signal, which determines the size of the frequency resolution. VBW (Video Bandwidth): the filter bandwidth used by the spectrum analyzer when displaying the spectrum graph. Wherein, the signal maximum level refers to the maximum level of the electrical signal allowed to be input by the monitoring equipment, and the signal minimum level refers to the minimum detectable signal level of the monitoring equipment. In this way, the downlink signal and the uplink signal can be analyzed by the signal spectrum analysis parameters to obtain the corresponding spectrum analysis result.

[0082] In the embodiments of the present application, since there is more than one non-geostationary satellite over the top, the signal spectrum analysis parameters can be batch set according to the working frequency band of different non-geostationary satellites to obtain the spectrum analysis result of the downlink signal of each non-geostationary satellite over the top in the current time period.

[0083] In step S12-1, the spectrum analysis result can include: no signal, monitoring of a downlink beacon signal of a non-geostationary satellite, monitoring of a downlink service signal of a non-geostationary satellite. The no signal means that there is no downlink signal of a non-geostationary satellite in the current beam coverage. For example, a non-geostationary satellite may not provide satellite communication services in the to-be-blocked area although it passes over the to-be-blocked area. In this case, the spectrum analysis result is no signal. In the embodiment of the present application, the downlink signal of a non-geostationary satellite can be divided into two types: a downlink beacon signal and a downlink service signal.

[0084] The downlink beacon signal is a continuous and stable radio frequency signal transmitted by a satellite, which is equivalent to a "lighthouse" signal and provides a stable reference signal for a ground terminal device to accurately aim at the satellite. The beacon signal can be determined from the spectrum analysis result. The beacon signal is usually a single frequency signal or a narrowband signal. In addition, the level of the frequency of the beacon signal is higher than the noise level around it. According to the single frequency signal or the narrowband signal and the level, it can be quickly determined whether it belongs to the downlink beacon signal.

[0085] The downlink service signal refers to a signal containing actual communication content, which can be a voice service signal, a data service signal, or a video service signal. The service signal can also be determined from the spectrum analysis result. The service signal is usually a wideband signal and has obvious wideband properties. According to the public information of a non-geostationary satellite, it can be determined whether the non-geostationary satellite provides satellite communication services in the to-be-blocked area.

[0086] In the embodiment of the present application, if the spectrum analysis result of the downlink signal is that the downlink beacon signal is detected, it means that the non-geostationary satellite may provide satellite communication services in the current to-be-blocked area. It can be further determined whether the downlink service signal is detected. When the downlink service signal is detected, it means that the non-geostationary satellite provides satellite communication services in the current to-be-blocked area. Based on this, when performing step S12-2, when the downlink beacon signal and the downlink service signal are determined to exist, it is necessary to further determine whether to perform radio blocking.

[0087] Further, according to the set monitoring link measurement rule, the signal form of the downlink service signal is determined. The set monitoring link measurement rule can be any type of link measurement rule, including: antenna gain measurement rule, transmission link gain or attenuation value measurement rule, connection line attenuation value measurement rule, etc. The specific measurement rule can be flexibly selected according to the actual application scene, and the application is not strictly limited. Through the set monitoring link measurement rule, the radiation intensity of the downlink service signal in different directions can be determined according to the gain of the signal, and the radiation intensity in the different directions is the signal form of the downlink service signal.

[0088] The signal form of the downlink service signal includes: main lobe signal or side lobe signal, wherein the main lobe signal refers to the signal lobe with the maximum radiation intensity. If the downlink service signal is a main lobe signal, it is determined that the non-geostationary satellite to be blocked provides satellite communication services to the current to-be-blocked area. If the downlink service signal is a side lobe signal, it indicates that the satellite communication service provided by the non-geostationary satellite to be blocked is not located in the current to-be-blocked area. Therefore, when step S12-3 is executed, if the signal form of the downlink service signal is a main lobe signal, since there is a satellite communication service, it means that there is a ground terminal device that interacts with the non-geostationary satellite. At this time, the downlink signal monitoring process is started, and the uplink signal in the beam coverage range is monitored to block the radio signal of the ground terminal device that interacts with the satellite.

[0089] If the signal form of the downlink service signal is a side lobe signal, it means that the ground terminal device in the current to-be-blocked area cannot interact with the corresponding non-geostationary satellite for satellite communication, and there is no need to detect the uplink signal in the beam coverage range. Therefore, it can also help to save the energy consumption of the device for executing the blocking operation. In other words, if the signal form of the downlink service signal is a main lobe signal, it indicates that the non-geostationary satellite or the star chain network composed of multiple non-geostationary satellites has normally carried out business in the to-be-blocked area, and the probability of subsequently discovering a ground terminal device is high. If it is judged that the signal form of the downlink service signal is a side lobe signal, it indicates that the satellite communication service provided by the non-geostationary satellite or the star chain network does not cover the monitoring system deployment area. The signal leaks to an additional coverage area, and the probability of discovering a ground terminal device in the additional coverage area is low.

[0090] On this basis, in some possible embodiments, the method further comprises: if the signal form of the downlink service signal is a sidelobe signal, marking the downlink service signal as a non-blocking downlink service signal. In the embodiments of the present application, the non-blocking downlink service signal is a mark, which is used to identify that the downlink service signal does not need to be blocked in the future. In this way, the downlink service signal with the signal form of a sidelobe signal can be marked separately, so as to quickly determine the subsequent execution process according to the mark information in the future, which helps to improve the processing efficiency of the entire radio blocking.

[0091] In some possible embodiments, during the execution of step S12, the determination of the first to-be-identified signal feature of the downlink signal and the second to-be-identified signal feature of the uplink signal can be realized by the following manner:

[0092] S12-4, performing spectrum analysis on the downlink signal, and determining one or more of the frequency, amplitude, phase, and bandwidth of the downlink signal as the first to-be-identified signal feature of the downlink signal;

[0093] S12-5, performing spectrum analysis on the uplink signal, and determining one or more of the frequency, amplitude, phase, and bandwidth of the uplink signal as the second to-be-identified signal feature of the uplink signal.

[0094] In the embodiments of the present application, the spectrum analysis on the downlink signal and the uplink signal can specifically obtain the following information of the downlink signal and the uplink signal: frequency range and bandwidth information, power spectral density (which can be a power spectral density curve), peak frequency, peak-to-valley frequency, amplitude, specific modulation mode, phase of the signal, noise ratio, and the like. In the embodiments of the present application, one or more of the frequency, amplitude, phase, and bandwidth of the downlink signal is selected as the signal feature, which is the to-be-identified signal feature of the downlink signal. The to-be-identified signal feature here is only a differentiated naming manner of the signal feature which is convenient for matching with the subsequent signal feature, and does not represent a signal feature which needs to be identified in the downlink signal. Similarly, the first to-be-identified signal feature and the second to-be-identified signal feature are only a differentiated naming manner of the signal feature of the downlink signal and the signal feature of the uplink signal, and do not represent a to-be-identified signal feature in the downlink signal and another to-be-identified signal feature.

[0095] In the embodiments of the present application, when the non-geostationary satellite provides satellite communication services, the working frequency band applied for use is fixed, the corresponding modulation and demodulation mode is fixed, and the signal characteristics of the downlink signals transmitted by the corresponding non-geostationary satellite are also fixed. At this time, whether the received downlink signal characteristics are the downlink signals transmitted by the non-geostationary satellite can be determined according to the fixed signal characteristics of the downlink signals. Similarly, when the ground terminal device has satellite communication capability, the signal antenna in the terminal device can transmit signals of the corresponding signal frequency according to the working frequency band of the non-geostationary satellite.

[0096] Thus, in the embodiments of the present application, the set signal characteristics of the downlink signals and the set signal characteristics of the uplink signals are determined in advance according to the satellite communication parameters of the non-geostationary satellite in step S13. In the embodiments of the present application, the satellite communication parameters of the non-geostationary satellite can include the working frequency band of the non-geostationary satellite, the frequency of the transmitted signals of the antenna of the non-geostationary satellite, and the like. Thus, the specific frequency, amplitude, phase, bandwidth, and the like of the radio signals conforming to the satellite communication services provided by the non-geostationary satellite can be determined according to the satellite communication parameters of the non-geostationary satellite.

[0097] Further, the reference downlink signal characteristics and the reference uplink signal characteristics are obtained, and then the reference downlink signal characteristics and the reference uplink signal characteristics are matched with the first to-be-identified signal characteristics of the downlink signals and the second to-be-identified signal characteristics of the uplink signals monitored by the monitoring device, the first matching degree between the reference downlink signal characteristics and the first to-be-identified signal characteristics is calculated, and the second matching degree between the reference uplink signal characteristics and the second to-be-identified signal characteristics is calculated. The matching degree can be the similarity of a single signal characteristic, such as the similarity of the frequency. It can also be the weighted similarity of multiple signal characteristics, such as the weighted similarity of the frequency, amplitude, phase, bandwidth, and the like.

[0098] When the first matching degree is greater than the first preset matching degree threshold and the second matching degree is greater than the second preset matching degree threshold, it can be determined that there is a target ground terminal device in the current to-be-blocked region that performs satellite communication interaction with the to-be-blocked non-geostationary satellite. At this time, the target ground terminal device can be searched to determine the specific position information of the target ground terminal device. As a possible implementation manner, the monitoring device can perform steps S11 and S12 to determine the ground terminal device that performs satellite communication, and then the signal searching device can search the target ground terminal device based on the monitoring result of the monitoring device. Thus, in the process of performing step S13, the position information of the target ground terminal device corresponding to the second to-be-identified signal characteristics can be determined according to the second to-be-identified signal characteristics by the following steps:

[0099] sending a terminal search signal to each signal searching device in the beam coverage range, so that each signal searching device searches the position information of the target ground terminal device based on the terminal search signal, wherein the terminal search signal carries a target second to-be-identified signal feature with a signal feature matching degree greater than the second preset matching degree threshold.

[0100] In the embodiment of the present application, the downlink signal and the uplink signal are monitored by the monitoring device, and spectrum analysis is performed to determine whether there is a non-geostationary satellite for satellite service and a ground terminal device for satellite communication interaction with the non-geostationary satellite for business. Further, a terminal search signal is sent to each signal searching device pre-deployed in the beam coverage range, and each signal searching device is controlled to accurately determine the specific position of the target ground terminal device based on the terminal search signal, thereby providing accurate information basis for subsequent radio interruption of the target ground terminal device.

[0101] The signal searching device is any electronic device with signal searching capability, which can be a signal detector, a signal monitoring vehicle, a signal monitoring radio station, etc. After determining the existence of the target terminal device, a terminal device searching system is set up at a high and good view position, and a signal monitoring vehicle is used to carry out specific target terminal device searching work. The terminal device searching system can use a traditional parabolic antenna with a servo motor to detect the uplink signal. The servo motor has the ability to rotate horizontally and vertically to help more accurately determine the specific position of the target ground terminal device corresponding to the signal feature of the second to-be-identified signal.

[0102] Specifically, the signal searching device can determine the starting frequency, the ending frequency, the RBW, the VBW, the maximum signal level, the minimum signal level, etc. according to the target second to-be-identified signal feature carried in the terminal search signal, rotate the servo motor, monitor the uplink signal, and perform spectrum analysis on the monitored uplink signal until the target signal with the same signal feature as the target second to-be-identified signal feature is found. During the process, the servo motor can be manually rotated to determine the direction of the maximum signal source, and other signal searching devices can be used to determine the specific position information of the target terminal device by a triangular positioning method. In this way, the signal searching device with signal searching capability can be used to assist in accurately determining the position of the target ground terminal device.

[0103] Then, on this basis, step S14 is performed, a blocking process is started, and the target ground terminal device is radio blocked. Specifically, an interference signal can be sent to the target ground terminal device, the interference signal is a blocking signal, and the communication connection between the target ground terminal device and the non-geostationary satellite can be interfered. The blocking device can set a start frequency and a termination frequency, and then send strong interference information to the position corresponding to the target ground terminal device through the parabolic antenna of the blocking device to interfere with the target ground terminal device to receive the downlink signal sent by the non-geostationary satellite, so as to suppress the downlink signal.

[0104] As described above, in the embodiments of the present application, since the non-geostationary satellite does not pass through the area to be blocked for 24 hours, based on this, the method provided in the embodiments of the present application further includes:

[0105] The blocking device in the beam coverage range is sent a start blocking instruction and the beam coverage time interval, so that the blocking device starts a working mode in the beam coverage time interval, and the working period of the working mode is consistent with the beam coverage time interval.

[0106] By selecting the embodiments of the present application, the blocking device can start the working mode only in the beam coverage time interval of the non-geostationary satellite, complete the corresponding working period in the beam coverage time interval, and perform radio blocking of the satellite signal only in the beam coverage time interval of the non-geostationary satellite, so that the blocking device does not need to be in the working mode for 24 hours, and the use cost of the blocking device can be effectively saved.

[0107] In a second aspect, the present application provides a non-geostationary satellite ground terminal radio signal blocking system, wherein, as shown in Figure 3 the system 30 includes:

[0108] The monitoring device 301 is configured to acquire the beam landing condition of the non-geostationary satellite to be blocked, wherein the beam landing condition includes: the beam coverage range of the non-geostationary satellite; the downlink signal of the non-geostationary satellite and the uplink signal sent by the ground terminal device are monitored in the beam coverage range, and the first to-be-identified signal feature of the downlink signal and the second to-be-identified signal feature of the uplink signal are determined.

[0109] The signal searching device 302 is configured to determine the position information of the target ground terminal device corresponding to the second to-be-identified signal feature if the matching degree between the first to-be-identified signal feature and the signal feature of the set satellite downlink signal is greater than a first preset matching degree threshold, and the matching degree between the second to-be-identified signal feature and the signal feature of the set terminal uplink signal is greater than a second preset matching degree threshold.

[0110] The blocking device 303 is configured to start a blocking process and transmit a blocking signal to the position information, wherein the blocking signal is used to block the communication connection between the ground terminal device and the non-GEO satellite.

[0111] In some possible embodiments, the signal searching device 302 is specifically configured to:

[0112] monitor the downlink signal in the beam coverage range and perform spectrum analysis on the monitored downlink signal to determine a spectrum analysis result of the downlink signal, wherein the spectrum analysis result of the downlink signal includes: no signal, monitoring of a downlink beacon signal of the non-GEO satellite, and monitoring of a downlink service signal of the non-GEO satellite;

[0113] if the spectrum analysis result of the downlink signal is monitoring of the downlink beacon signal of the non-GEO satellite and monitoring of the downlink service signal of the non-GEO satellite, determining a signal form of the downlink service signal according to a set monitoring link calculation rule;

[0114] if the signal form of the downlink service signal is a main lobe signal, starting an uplink signal monitoring process to monitor the uplink signal in the beam coverage range.

[0115] In some possible embodiments, the signal searching device 302 is further configured to:

[0116] perform spectrum analysis on the downlink signal to determine one or more of a frequency, an amplitude, a phase, and a bandwidth of the downlink signal as a first to-be-identified signal feature of the downlink signal;

[0117] perform spectrum analysis on the uplink signal to determine one or more of a frequency, an amplitude, a phase, and a bandwidth of the uplink signal as a second to-be-identified signal feature of the uplink signal.

[0118] In some possible embodiments, the signal searching device 302 is further configured to:

[0119] if the signal form of the downlink service signal is a side lobe signal, marking the downlink service signal as a non-blocked downlink service signal.

[0120] In some possible embodiments, the signal searching device 302 is further configured to:

[0121] The set signal feature of the downlink signal and the set signal feature of the uplink signal are determined in advance according to satellite communication parameters of the non-GEO satellite.

[0122] In some possible embodiments, the monitoring device 301 is specifically configured to:

[0123] sending a terminal search signal to each signal search device in the beam coverage range, so that each signal search device searches for the position information of the target ground terminal device based on the terminal search signal, wherein the terminal search signal carries a target second to-be-identified signal feature with a signal feature matching degree greater than the second preset matching degree threshold.

[0124] In some possible embodiments, the beam landing condition further includes that the non-geostationary satellite has a beam coverage time interval for the to-be-blocked area, and the blocking device 303 is specifically configured to:

[0125] sending a start blocking instruction and the beam coverage time interval to the blocking device in the beam coverage range, so that the blocking device starts a working mode in the beam coverage time interval, wherein a working period of the working mode is consistent with the beam coverage time interval.

[0126] In the present application, the collection, storage, use, processing, transmission, provision and disclosure of user personal information comply with relevant laws and regulations, and do not violate public order and good customs.

[0127] The names of the messages or information exchanged between the plurality of devices in the embodiments of the present application are only used for illustrative purposes, and are not used to limit the scope of the messages or information.

[0128] In a third aspect, the example embodiments of the present application also provide an electronic device, including: at least one processor; and a memory connected with the at least one processor in communication. The memory stores a computer program capable of being executed by the at least one processor, and the computer program is used to make the electronic device execute the method according to the embodiments of the present application when the computer program is executed by the at least one processor.

[0129] The example embodiments of the present application also provide a non-transitory computer-readable storage medium storing a computer program, wherein the computer program is used to make a computer execute the method according to the embodiments of the present application when the computer program is executed by a processor of the computer.

[0130] The example embodiments of the present application also provide a computer program product, including a computer program, wherein the computer program is used to make a computer execute the method according to the embodiments of the present application when the computer program is executed by a processor of the computer.

[0131] Reference Figure 4The present invention describes a structural block diagram of an electronic device 400 that can serve as a server or client of this application, which is an example of a hardware device that can be applied to various aspects of this application. The electronic device is intended to represent various forms of digital electronic computer devices, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processors, cellular phones, smartphones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the application described and / or claimed herein.

[0132] like Figure 4 As shown, the electronic device 400 includes a computing unit 401, which can perform various appropriate actions and processes according to a computer program stored in a read-only memory (ROM) 402 or a computer program loaded from a storage unit 408 into a random access memory (RAM) 403. The RAM 403 may also store various programs and data required for the operation of the electronic device 400. The computing unit 401, ROM 402, and RAM 403 are interconnected via a bus 404. An input / output (I / O) interface 405 is also connected to the bus 404.

[0133] Multiple components in electronic device 400 are connected to I / O interface 405, including: input unit 406, output unit 407, storage unit 408, and communication unit 409. Input unit 406 can be any type of device capable of inputting information to electronic device 400. Input unit 406 can receive input digital or character information and generate key signal inputs related to user settings and / or function control of electronic device. Output unit 407 can be any type of device capable of presenting information and may include, but is not limited to, a display, speaker, video / audio output terminal, vibrator, and / or printer. Storage unit 408 may include, but is not limited to, disks and optical discs. Communication unit 409 allows electronic device 400 to exchange information / data with other devices through computer networks such as the Internet and / or various telecommunications networks, and may include, but is not limited to, modems, network cards, infrared communication devices, wireless communication transceivers, and / or chipsets, such as Bluetooth™ devices, WiFi devices, WiMax devices, cellular communication devices, and / or the like.

[0134] The computing unit 401 can be various general and / or special purpose processing components with processing and computing capabilities. Some examples of the computing unit 401 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various specialized artificial intelligence (AI) computing chips, various computing units running machine learning model algorithms, a digital signal processor (DSP), and any suitable processor, controller, microcontroller, etc. The computing unit 401 performs various methods and processes described above. For example, in some embodiments, the aforementioned non-geostationary orbit satellite ground terminal radio signal blocking method can be implemented as a computer software program tangibly embodied in a machine-readable medium, such as the storage unit 408. In some embodiments, part or all of the computer program can be loaded and / or installed onto the electronic device 400 via the ROM 402 and / or the communication unit 409. In some embodiments, the computing unit 401 can be configured to perform the aforementioned non-geostationary orbit satellite ground terminal radio signal blocking method by any other suitable means, such as by means of firmware.

[0135] Program code for carrying out methods of the present application can be written in any combination of one or more programming languages. The program code can be provided to a processor or controller of a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the program code, when executed by the processor or controller, produces a means for implementing the functions / acts specified in the flowcharts and / or block diagrams. The program code can be retrieved from a machine-readable medium or device and executed by a processor or controller to produce a machine. The machine-readable medium or device can be a machine-readable storage medium or device having stored thereon instructions that, when executed by the processor or controller, cause the machine to carry out operations specified by the instructions. The machine-readable medium or device can be a machine-readable signal medium or other transient medium.

[0136] In the context of the present application, a machine-readable medium can be a tangible medium that can contain or store program for use by or in connection with an instruction execution system, apparatus, or device. The machine-readable medium can be a machine-readable signal medium or a machine-readable storage medium. Machine-readable storage media can include, without limitation, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination of the foregoing. More specific examples of the machine-readable storage medium will include one or more lines of a machine-readable signal medium, a portable computer 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.

[0137] As used in this application, the terms "machine-readable medium" and "computer- readable medium" refer to any computer program product, apparatus and / or device (e.g., magnetic discs, optical disks, memory, Programmable Logic Devices (PLDs)) used to provide machine instructions and / or data to a programmable processor, including a machine-readable medium that receives machine instructions as a machine-readable signal. The term "machine-readable signal" refers to any signal used to provide machine instructions and / or data to a programmable processor.

[0138] To provide for interaction with a user, the systems and techniques described here can be implemented on a computer having a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user and a keyboard and a pointing device (e.g., a mouse or a trackball) by which the user can provide input to the computer. Other kinds of devices can be used to provide for interaction with a user as well; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form, including acoustic, speech, or tactile input.

[0139] The systems and techniques described here can be implemented in a computing system that includes a back end component (e.g., as a data server), or that includes a middleware component (e.g., an application server), or that includes a front end component (e.g., a client computer having a graphical user interface or a Web browser through which a user can interact with an implementation of the systems and techniques described here), or any combination of such back end, middleware, or front end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include a local area network (LAN), a wide area network (WAN), and the Internet.

[0140] The computing system can include clients and servers. A client and server are generally remote from each other and typically interact through a communication network. The relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other.

Claims

1. A method of blocking radio signals from non-geostationary satellite ground terminals, characterized in that, The method comprises: acquiring a beam landing situation of a non-geostationary satellite to be blocked, wherein the beam landing situation comprises a beam coverage range of the non-geostationary satellite; monitoring a downlink signal of the non-geostationary satellite and an uplink signal sent by a ground terminal device in the beam coverage range, determining a first to-be-identified signal feature of the downlink signal and a second to-be-identified signal feature of the uplink signal; if the first to-be-identified signal feature matches a preset signal feature of a satellite downlink signal by more than a first preset matching threshold and the second to-be-identified signal feature matches a preset signal feature of a terminal uplink signal by more than a second preset matching threshold, determining location information of a target ground terminal device corresponding to the second to-be-identified signal feature according to the second to-be-identified signal feature; starting a blocking process to emit a blocking signal to the location information, wherein the blocking signal is used to block a communication connection between the ground terminal device and the non-geostationary satellite; the monitoring of the downlink signal of the non-geostationary satellite and the uplink signal sent by the ground terminal device in the beam coverage range comprises: monitoring the downlink signal in the beam coverage range and performing spectrum analysis on the monitored downlink signal to determine a spectrum analysis result of the downlink signal, wherein the spectrum analysis result of the downlink signal comprises no signal, monitoring of a downlink beacon signal of the non-geostationary satellite, and monitoring of a downlink service signal of the non-geostationary satellite; if the spectrum analysis result of the downlink signal is monitoring of the downlink beacon signal of the non-geostationary satellite and monitoring of the downlink service signal of the non-geostationary satellite, determining a signal form of the downlink service signal according to a preset monitoring link calculation rule; if the signal form of the downlink service signal is a main lobe signal, starting a monitoring uplink signal process to monitor the uplink signal in the beam coverage range.

2. The method of claim 1, wherein, The method further comprises: if the signal form of the downlink service signal is a side lobe signal, marking the downlink service signal as a non-blocked downlink service signal.

3. The method of claim 1, wherein, The determination of the first to-be-identified signal feature of the downlink signal and the second to-be-identified signal feature of the uplink signal comprises: performing spectrum analysis on the downlink signal to determine one or more of a frequency, an amplitude, a phase, and a bandwidth of the downlink signal as the first to-be-identified signal feature of the downlink signal; performing spectrum analysis on the uplink signal to determine one or more of a frequency, an amplitude, a phase, and a bandwidth of the uplink signal as the second to-be-identified signal feature of the uplink signal.

4. The method of claim 3, wherein, The preset signal feature of the downlink signal and the preset signal feature of the uplink signal are determined in advance according to satellite communication parameters of the non-geostationary satellite.

5. The method of claim 1, wherein, The method is applied to a monitoring device, and the determination of the location information of the target ground terminal device corresponding to the second to-be-identified signal feature according to the second to-be-identified signal feature comprises: The terminal search signal is sent to each signal search device in the beam coverage range, so that each signal search device searches for position information of the target ground terminal device based on the terminal search signal, wherein the terminal search signal carries a target second to-be-identified signal feature with a signal feature matching degree greater than the second preset matching degree threshold.

6. The method of claim 1, wherein, The beam landing condition further includes a beam coverage time interval of the non-geostationary satellite for a to-be-blocked region, and the method further includes: The starting blocking instruction and the beam coverage time interval are sent to a blocking device in the beam coverage range, so that the blocking device starts a working mode in the beam coverage time interval, wherein a working period of the working mode is consistent with the beam coverage time interval.

7. A non-geostationary satellite ground terminal radio signal blocking system, characterized by, The system includes: A monitoring device is configured to acquire a beam landing condition of a non-geostationary satellite to be blocked, wherein the beam landing condition includes a beam coverage range of the non-geostationary satellite, and the downlink signal of the non-geostationary satellite and the uplink signal sent by a ground terminal device are monitored in the beam coverage range to determine a first to-be-identified signal feature of the downlink signal and a second to-be-identified signal feature of the uplink signal; A signal search device is configured to determine position information of a target ground terminal device corresponding to the second to-be-identified signal feature according to the second to-be-identified signal feature if the first to-be-identified signal feature has a signal feature matching degree greater than a first preset matching degree threshold with respect to a set satellite downlink signal, and the second to-be-identified signal feature has a signal feature matching degree greater than a second preset matching degree threshold with respect to a set terminal uplink signal; A blocking device is configured to start a blocking process and emit a blocking signal to the position information, wherein the blocking signal is used to block a communication connection between the ground terminal device and the non-geostationary satellite. The monitoring device is further configured to: monitor the downlink signal in the beam coverage range, perform spectrum analysis on the monitored downlink signal, and determine a spectrum analysis result of the downlink signal, wherein the spectrum analysis result of the downlink signal includes no signal, a downlink beacon signal of the non-geostationary satellite, and a downlink service signal of the non-geostationary satellite; if the spectrum analysis result of the downlink signal is that the downlink beacon signal of the non-geostationary satellite and the downlink service signal of the non-geostationary satellite are monitored, determine a signal form of the downlink service signal according to a set monitoring link calculation rule; if the signal form of the downlink service signal is a main lobe signal, start a listening uplink signal process and monitor the uplink signal in the beam coverage range.

8. An electronic device, comprising: The electronic device includes a processor and a memory storing a program; wherein the program includes instructions that, when executed by the processor, cause the processor to perform the method according to any one of claims 1-6.

9. A non-transitory computer-readable storage medium having stored thereon computer instructions, wherein, The computer instructions are used to make the computer perform the method according to any one of claims 1-6.

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