Non-stationary orbit satellite ground terminal radio signal blocking method and system

Abstract

The invention provides a non-stationary orbit satellite ground terminal radio signal blocking method and a non-stationary orbit satellite ground terminal radio signal blocking system, which can perform satellite communication blocking on radio signals between a non-stationary orbit satellite and ground terminal equipment after determining a beam coverage range of the non-stationary orbit satellite. According to the method, signals in a wave beam coverage range are monitored, if downlink signals and uplink signals conforming to set signal characteristics appear, the position of the ground terminal equipment needing to be blocked is rapidly determined according to the signal characteristics, and accurate radio signal intervention and blocking are carried out on the position, so that the blocking efficiency is improved. And the blank of the application of the existing radio blocking technology between the non-stationary orbit satellite and the ground terminal is effectively filled.

Description

Technical Field

[0001] This application relates to the field of wireless communication technologies, and in particular, to a method and system for blocking radio signals of a non-geostationary satellite ground terminal. Background Art

[0002] A non-geostationary satellite refers to an artificial satellite operating outside the geostationary orbit of the Earth. Compared with a satellite operating in the geostationary orbit that can remain stationary relative to the Earth, a non-geostationary satellite may operate in a low Earth orbit, a medium Earth orbit, or a high elliptical orbit, and its position relative to the Earth will change. In terms of wireless communication, a non-geostationary satellite communicates with user terminal devices on the ground through radio waves.

[0003] Radio signal blocking is a technology that interferes with or blocks radio transmission frequencies, frequency bands, etc., and can achieve the effect of preventing the propagation of illegal or unnecessary radio signals. It is widely used in fields such as preventing exam cheating and countering drones. However, currently, the application of radio signal blocking technology between non-geostationary satellites and user terminal devices on the ground is still blank. How to interfere with and block the wireless communication between non-geostationary satellites and user terminal devices on the ground has become an urgent problem to be solved. Summary of the Invention

[0004] In view of this, embodiments of this application provide a method and system for blocking radio signals of a non-geostationary satellite ground terminal, so as to block radio signals between a non-geostationary satellite and a terminal device on the ground, thereby reducing or preventing the propagation of unnecessary radio signals.

[0005] In a first aspect, embodiments of this application provide a method for blocking radio signals of a non-geostationary satellite ground terminal, where the method includes:

[0006] Obtain the beam landing situation of the non-geostationary satellite to be blocked, where the beam landing situation includes: the beam coverage range of the non-geostationary satellite;

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

[0008] If the matching degree between the first signal feature to be identified and the signal feature of the set satellite downlink signal is greater than the first preset matching degree threshold, and the matching degree between the second signal feature to be identified and the signal feature of the set terminal uplink signal is greater than the second preset matching degree threshold, then determine the position information of the target ground terminal device corresponding to the second signal feature to be identified according to the second signal feature to be identified;

[0009] Initiate a blocking process and transmit a blocking signal to the location information, where the blocking signal is used to block the communication connection between the ground terminal device and the non-geostationary orbit satellite.

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

[0011] Monitor the downlink signal within the beam coverage range, perform spectrum analysis on the monitored downlink signal, and determine the result of the spectrum analysis of the downlink signal, where the result of the spectrum analysis of the downlink signal includes: no signal, detecting the downlink beacon signal of the non-geostationary orbit satellite, and detecting the downlink service signal of the non-geostationary orbit satellite;

[0012] If the result of the spectrum analysis of the downlink signal is: detecting the downlink beacon signal of the non-geostationary orbit satellite and detecting the downlink service signal of the non-geostationary orbit satellite, then determine the signal form of the downlink service signal according to the set monitoring link measurement rule.

[0013] If the signal form of the downlink service signal is the main lobe signal, initiate the process of listening to the uplink signal and monitor the uplink signal within the beam coverage range.

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

[0015] If the signal form of the downlink service signal is the side lobe signal, mark the downlink service signal as a non-blocked downlink service signal.

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

[0017] Perform spectrum analysis on the downlink signal, and determine one or more of the frequency, amplitude, phase, and bandwidth of the downlink signal as the first signal feature to be identified of the downlink signal;

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

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

[0020] In some possible embodiments, the method is applied to a monitoring device, and determining the location information of the target ground terminal device corresponding to the second signal feature to be recognized according to the second signal feature to be recognized includes:

[0021] Sending a terminal search signal to each signal search device within the beam coverage range, so that each signal search device searches for the location information of the target ground terminal device based on the terminal search signal, where the terminal search signal carries a target second signal feature to be recognized with a signal feature matching degree greater than the second preset matching degree threshold.

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

[0023] Sending a start blocking instruction and the beam coverage time interval to a blocking device within the beam coverage range, so that the blocking device starts a working mode during the beam coverage time interval, where the working cycle 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 orbit satellite ground terminal radio signal blocking system, where the system includes:

[0025] A monitoring device, configured to obtain the beam landing situation of a non-geostationary orbit satellite to be blocked, where the beam landing situation includes: the beam coverage range of the non-geostationary orbit satellite; within the beam coverage range, monitoring the downlink signal of the non-geostationary orbit satellite and the uplink signal sent by a ground terminal device, and determining the first signal feature to be recognized of the downlink signal and the second signal feature to be recognized of the uplink signal;

[0026] A signal search device, configured to, if the matching degree between the first signal feature to be recognized 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 signal feature to be recognized and the signal feature of the set terminal uplink signal is greater than a second preset matching degree threshold, determine the location information of the target ground terminal device corresponding to the second signal feature to be recognized according to the second signal feature to be recognized;

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

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

[0029] Monitor the downlink signals within the beam coverage range, perform spectral analysis on the monitored downlink signals, and determine the results of the spectral analysis of the downlink signals. Among them, the results of the spectral analysis of the downlink signals include: no signal, detecting the downlink beacon signal of the non-geostationary satellite, and detecting the downlink service signal of the non-geostationary satellite;

[0030] If the results of the spectral analysis of the downlink signals are: detecting the downlink beacon signal of the non-geostationary satellite and detecting the downlink service signal of the non-geostationary satellite, then according to the set monitoring link measurement rules, determine the signal form of the downlink service signal;

[0031] If the signal form of the downlink service signal is the main lobe signal, start the process of listening to the uplink signals and monitor the uplink signals within the beam coverage range.

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

[0033] Perform spectral analysis on the downlink signals, and determine one or more of the frequency, amplitude, phase, and bandwidth of the downlink signals as the first signal features to be identified of the downlink signals;

[0034] Perform spectral analysis on the uplink signals, and determine one or more of the frequency, amplitude, phase, and bandwidth of the uplink signals as the second signal features to be identified of the uplink signals.

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

[0036] If the signal form of the downlink service signal is the side lobe signal, mark the downlink service signal as not blocking the downlink service signal.

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

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

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

[0040] Send terminal search signals to each signal search device within the beam coverage range, so that each signal search device searches for the location information of the target ground terminal device based on the terminal search signals, where the terminal search signals carry target second signal features to be identified with a signal feature matching degree greater than the second preset matching degree threshold.

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

[0042] Send a start blocking instruction and the beam coverage time interval to the blocking devices within the beam coverage range, so that the blocking devices start the working mode during the beam coverage time interval, where the working cycle of the working mode is consistent with the beam coverage time interval.

[0043] In a third aspect, an embodiment of the present application provides an electronic device, where 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 execute the non-geostationary orbit satellite ground terminal radio signal blocking method described in the first aspect.

[0044] In a fourth aspect, an embodiment of the present application provides a non-transitory computer-readable storage medium storing computer instructions, characterized in that the computer instructions are used to cause a computer to execute the non-geostationary orbit satellite ground terminal radio signal blocking method described in the first aspect.

[0045] Advantages of the present application:

[0046] The present application provides a non-geostationary orbit satellite ground terminal radio signal blocking method and system. The method obtains the beam landing situation of the non-geostationary orbit satellite to be blocked, monitors the downlink signal of the non-geostationary orbit satellite within the beam coverage range and the uplink signal sent by the ground terminal according to the beam coverage range in the beam landing situation, and then determines the first signal feature to be recognized of the downlink signal and the second signal feature to be recognized of the uplink signal. Then, the first signal feature to be recognized and the second signal feature to be recognized are matched with the set signal features. If the matching degree is greater than the set threshold, it indicates that there is communication between a ground terminal and an over-the-top non-geostationary orbit satellite within the current beam coverage range. At this time, the blocking process is started, and a blocking signal is transmitted to the location of the target ground terminal device that is communicating with the non-geostationary orbit satellite to be blocked, so as to block the communication connection between the ground terminal device and the non-geostationary orbit satellite.

[0047] By selecting the embodiments of the present application, when it is necessary to block satellite communication of radio signals between a non-geostationary orbit satellite and a ground terminal device, after determining the beam coverage range of the non-geostationary orbit satellite, the signals within the beam coverage range are monitored. If a downlink signal or an uplink signal that conforms to the set signal characteristics appears, the position of the ground terminal device that needs to be blocked is quickly determined according to the signal characteristics, and precise radio signal intervention and blocking are performed on this position, effectively filling the gap in the application of existing wireless blocking technologies between non-geostationary orbit satellites and ground terminals. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] In the following description of exemplary embodiments with reference to the accompanying drawings, more details, features, and advantages of the present application are disclosed. In the drawings:

[0049] Figure 1 FIG. shows a flowchart of a method for blocking radio signals between a non-geostationary orbit satellite and a ground terminal provided by an embodiment of the present application;

[0050] Figure 2 FIG. shows a schematic system architecture diagram of radio signal communication between a non-geostationary orbit satellite and a ground terminal provided by an embodiment of the present application;

[0051] Figure 3 FIG. shows another schematic system architecture diagram of a radio signal blocking system between a non-geostationary orbit satellite and a ground terminal provided by an embodiment of the present application;

[0052] Figure 4 FIG. shows a block diagram of the structure of an exemplary electronic device that can be used to implement the embodiments of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[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 construed as limited to the embodiments set forth herein. On the contrary, 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 used to limit the protection scope of the present application.

[0054] It should be understood that the various steps recorded in the method embodiments of the present application can be executed in different orders and / or in parallel. In addition, the method embodiments may include additional steps and / or omit the steps shown. The scope of the present application is not limited in this regard.

[0055] As used herein, the term "including" and its variations are open-ended, that is, "including but not limited to". The term "based on" means "at least partially based 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". The relevant definitions of other terms will be given in the following description. It should be noted that the concepts such as "first", "second", etc. mentioned in this application are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0056] It should be noted that the modification of "one" and "a plurality of" mentioned in this application is illustrative rather than restrictive. Those skilled in the art should understand that unless otherwise clearly specified in the context, it should be understood as "one or more".

[0057] As described in the background art, non-geostationary orbit satellites communicate with ground terminal devices through radio wave signals. However, there are relatively few current technologies for blocking radio signals between non-geostationary orbit satellites and ground terminal devices, and the application of radio signal blocking technology in the scenario of communication between non-geostationary orbit satellites and ground terminal devices is relatively rare. In view of this, the present application provides a method and system for blocking radio signals between non-geostationary orbit satellite ground terminals. Among them, this method is applied to any electronic device with the ability to block radio signals, and this electronic device includes but is not limited to: mobile terminal devices, computers, industrial control machines, signal analyzers, servers, etc. Among them, this system is a system integrating various radio signal blocking capabilities such as signal analysis, signal processing, and signal blocking, and can specifically be a hardware system, or a hardware system jointly constructed by electronic devices with different functions.

[0058] Among them, in a first aspect, the present application provides a method for blocking radio signals between non-geostationary orbit satellite ground terminals. This method is applied to any electronic device with the function of blocking radio signals between non-geostationary orbit satellite ground terminals, including but not limited to personal mobile terminals, computers, or servers, etc. As Figure 1 shown, this method includes the following steps:

[0059] S11. Obtain the beam landing situation of the non-geostationary orbit satellite to be blocked, where the beam landing situation includes: the beam coverage range of the non-geostationary orbit satellite;

[0060] S12. In the beam coverage range, monitor the downlink signal of the non-geostationary orbit satellite and the uplink signal sent by the ground terminal device, and determine the first signal feature to be recognized of the downlink signal and the second signal feature to be recognized of the uplink signal;

[0061] S13. If the matching degree between the first signal feature to be recognized and the signal feature of the set satellite downlink signal is greater than the first preset matching degree threshold, and the matching degree between the second signal feature to be recognized and the signal feature of the set terminal uplink signal is greater than the second preset matching degree threshold, then determine the position information of the target ground terminal device corresponding to the second signal feature to be recognized according to the second signal feature to be recognized;

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

[0063] Among them, this method obtains the beam landing situation of the non-geostationary orbit satellite to be blocked, monitors the downlink signal of the non-geostationary orbit satellite and the uplink signal sent by the ground terminal within the beam coverage range according to the beam coverage range of the non-geostationary orbit satellite in the beam landing situation, and then determines the first signal feature to be recognized of the downlink signal and the second signal feature to be recognized of the uplink signal. And match the first signal feature to be recognized and the second signal feature to be recognized with the set signal features. If the matching degree is greater than the set threshold, it indicates that there is communication between a ground terminal and an over-the-top non-geostationary orbit satellite within the current beam coverage range. At this time, start the blocking process and transmit a blocking signal to the position where the target ground terminal device that is communicating with the non-geostationary orbit satellite to be blocked is located, so as to block the communication connection between the ground terminal device and the non-geostationary orbit satellite.

[0064] Selecting the embodiment of the present application can, when it is necessary to block the satellite communication of the radio signal between the non-geostationary orbit satellite and the ground terminal device, after determining the beam coverage range of the non-geostationary orbit satellite, monitor the signals within the beam coverage range. If downlink signals and uplink signals that meet the set signal features appear, quickly determine the position of the ground terminal device that needs to be blocked according to the signal features, and perform precise radio signal intervention and blocking on this position, effectively making up for the blank in the application of the existing radio blocking technology between non-geostationary orbit satellites and ground terminals.

[0065] The following will give an exemplary description of the above steps S11 to S14:

[0066] In the embodiments of the present application, a non-geostationary orbit satellite refers to an artificial satellite that is not in the geostationary orbit of the Earth. The artificial satellite located in the non-geostationary orbit of the Earth can be simply understood as a data base station, which can communicate and interact with devices on the Earth through specific frequency bands, or can also be understood as a communication satellite that is not in the geostationary orbit. In the embodiments of the present application, a ground terminal device refers to any type of electronic device with satellite communication capabilities, which can be an ordinary personal mobile terminal, a computer, or some communication antennas, radio stations, etc.

[0067] In the embodiments of the present application, the principle of satellite communication can be as Figure 2 shown. The non-geostationary orbit satellite and the ground terminal device communicate and interact through radio signals. Among them, the radio signal sent by the non-geostationary orbit satellite to the ground terminal device is a downlink signal, and the radio signal sent by the ground terminal device to the non-geostationary orbit satellite is an uplink signal. The radio signal between the non-geostationary orbit satellite and the ground terminal device is a radio signal sent according to the corresponding communication frequency in the communication frequency band applied for use by the non-geostationary orbit satellite. Specifically, the beam landing situation of the non-geostationary orbit satellite may also include the signal frequency band corresponding to the radio signal used in the satellite communication service provided by the non-geostationary orbit satellite, and this signal frequency band is the operating frequency band of the non-geostationary orbit satellite. Among them, common operating frequency bands include: Q / V band: 51.4 - 52.4 GHz band, Ku band: 12 - 18 GHz, Ka band: 27 - 40 GHz. Among them, as Figure 2 shown, the area range of the Earth's surface covered by the radio signal sent by the signal antenna in the non-geostationary orbit satellite is the beam coverage range of the non-geostationary orbit satellite.

[0068] Among them, the non-geostationary orbit satellite does not rotate at the same frequency as the Earth. The non-geostationary orbit satellite will only cover a certain area of the Earth at a certain time node. During the operation of the non-geostationary orbit satellite, the signal coverage range on the Earth changes with the different positions of the non-geostationary orbit satellite during its operation. In the embodiments of the present application, the signal coverage area generated by the non-geostationary orbit satellite on the Earth is simply referred to as the beam coverage range. Among them, the operating speed and operating period of the non-geostationary orbit satellite depend on the actual orbital 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 specifically depends on the operating 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 passes overhead during the current time period. To determine whether a non-geostationary orbit satellite passes overhead during the current time period, it can be calculated by pre-acquiring the operation parameters of each non-geostationary orbit satellite, combining the Earth's rotation period and the longitude and latitude of each region on the Earth, through a set mathematical calculation model. Among them, the set mathematical calculation model is an existing mathematical model for calculating the satellite's overhead time in astrophysics, which can be referred to in relevant aerospace technical documents and is not the focus of this article, so it will not be elaborated here.

[0070] In the embodiments of the present application, the beam landing situation of a non-geostationary orbit satellite refers to the general situation of the entire transmitted wireless communication wave when the non-geostationary orbit satellite performs the function of a data base station, involving many aspects, such as beamforming and control, inter-satellite links, ground station communication, etc. In the embodiments of the present application, the mainly involved beam landing situations include: beam coverage range and beam coverage time. Determining whether it passes overhead during the current time period as described above 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 emitted by the non-geostationary orbit satellite when it passes overhead.

[0071] As an implementation manner, the beam landing situation of a non-geostationary orbit satellite is pre-set by the production, R & D, and launch institutions of the satellite. When the non-geostationary orbit satellite is sent to the specified orbital altitude, it will send wireless communication waves according to the pre-set frequency and operate and work on the specified orbit according to the set operation cycle. Based on this, when performing step S11, the beam landing situation of the corresponding non-geostationary orbit satellite launched by the manufacturer can be obtained by consulting the operation parameter information of various settings during the satellite production by the satellite manufacturer. Or the beam landing situation of the non-geostationary orbit satellite can be obtained by consulting the operation parameters of the already operating satellites filed by the satellite manufacturer at the specified institution.

[0072] As described above, a non-geostationary orbit satellite is different from a geostationary orbit satellite. The non-geostationary orbit satellite does not remain relatively stationary with the Earth. Therefore, the non-geostationary orbit satellite may only achieve wireless communication wave coverage of the corresponding beam coverage range during the beam coverage time period. Based on this, in some possible embodiments, the beam landing situation further includes: the beam coverage time interval of the non-geostationary orbit satellite for the area to be blocked. When performing step S11, the beam coverage time interval of the non-geostationary orbit satellite for the area to be blocked can also be obtained.

[0073] Specifically, the area to be blocked is the area range divided according to actual requirements. As an implementation manner, the non-geostationary orbit satellite to be blocked can also be deduced by the area to be blocked, and the non-geostationary orbit satellite whose operation trajectory overlaps with the area to be blocked can be queried according to the specific position information of the area to be blocked, and then further screened in combination with the time period to be blocked, and the non-geostationary orbit satellite that meets the screening conditions is determined as the non-geostationary orbit satellite to be blocked.

[0074] Exemplarily, if a relatively high-level exam will be held in Haidian District, Beijing from 2 pm to 5 pm one day, at this time, it is necessary to perform wireless resistance to satellite signals during the period from 2 pm to 5 pm in Haidian District, Beijing on that day. At this time, it is necessary to screen the non-geostationary orbit satellites that may pass over the head of Haidian, Beijing. Specifically, it can be pre-determined whether the specific operation orbits of each non-geostationary orbit satellite in the current space overlap with Haidian District, Beijing. If there is an overlap. A secondary screening is performed within the beam coverage time interval of the non-geostationary orbit satellites with overlapping orbits, and it is calculated whether the over-the-top time of each non-geostationary orbit satellite with overlapping orbits overlaps with the time between 2 pm and 5 pm on that day. If so, the target non-geostationary orbit satellites that will pass over the head of Haidian District, Beijing between 2 pm and 5 pm on that day can be screened out as the non-geostationary orbit satellites to be blocked.

[0075] As another implementation manner, when performing step S11, existing satellite monitoring equipment can also be used to track non-geostationary orbit satellites in combination with the publicly available operation parameters of non-geostationary orbit satellites, and obtain the specific beam coverage time interval and beam coverage range of non-geostationary orbit satellites.

[0076] In some possible embodiments, since the non-geostationary orbit satellite is not relatively stationary with the Earth, therefore, when performing step S12 and monitoring the downlink signal of the non-geostationary orbit satellite within the beam coverage range, step S12 can be performed within the beam coverage time interval of the non-geostationary orbit satellite, which can save the energy consumption of the equipment when monitoring signals and help save the cost of wireless resistance. In some possible embodiments, the monitoring of the downlink signal of the non-geostationary orbit satellite and the uplink signal sent by the ground terminal device within the beam coverage range includes:

[0077] S12-1. Monitor the downlink signals within the beam coverage range, and perform spectrum analysis on the monitored downlink signals to determine the results of the spectrum analysis of the downlink signals. Among them, the results of the spectrum analysis of the downlink signals include: no signal, monitoring the downlink beacon signal of the non-geostationary orbit satellite, and monitoring the downlink service signal of the non-geostationary orbit satellite;

[0078] S12-2. If the result of the spectrum analysis of the downlink signal is: detecting the downlink beacon signal of the non-geostationary orbit satellite and detecting the downlink service signal of the non-geostationary orbit satellite, then determine the signal form of the downlink service signal according to the set monitoring link calculation rule.

[0079] S12-3. If the signal form of the downlink service signal is the main lobe signal, start the process of listening to the uplink signal and monitor the uplink signals within the beam coverage.

[0080] Among them, the downlink signal and the uplink signal are distinguished by different signal source devices carried in the signal. The signal source device of the downlink signal is the non-geostationary orbit satellite, and the signal source device of the uplink signal is the ground terminal device. As a possible implementation, when performing step S12, the downlink signals within the beam coverage can be monitored by calling an existing satellite monitoring system. Specifically, the existing satellite monitoring system can be used to receive the downlink satellite signals of the non-geostationary orbit satellite by adopting the traditional parabolic antenna system calculation method or the phased array antenna system calculation method. Then, according to the orbital altitude of the non-geostationary orbit satellite to be blocked and the publicly disclosed operating parameters of the non-geostationary orbit satellite to be blocked, set the start frequency and stop frequency of the working frequency band of the corresponding satellite communication. The existing satellite monitoring system filters and converts the radio signals within this working frequency band. Among them, the parabolic antenna system calculation method or the phased array antenna system calculation method can refer to relevant existing publicly disclosed calculation materials, which is not the focus of this article and will not be elaborated here.

[0081] As an implementation, on the basis of the start frequency and stop frequency of this working frequency band, corresponding signal spectrum analysis parameters can also be set according to the orbital altitude and operating parameters of the non-geostationary orbit satellite to be blocked, such as RBW, VBW, maximum signal level, minimum signal level, etc. Among them, RBW (Resolution Bandwidth): the bandwidth parameter used by the spectrum analyzer when performing spectrum analysis on the signal, which determines the size of the spectrum resolution. VBW (Video Bandwidth): the filter bandwidth adopted by the spectrum analyzer when displaying the spectrum diagram. Among them, the maximum signal level refers to the maximum level of the electrical signal allowed to be input by the monitoring device, and the minimum signal level refers to the level of the minimum detectable signal of the monitoring device. In this way, the downlink signal and the uplink signal can be subjected to spectrum analysis through these signal spectrum analysis parameters to obtain the corresponding spectrum analysis results.

[0082] In the embodiment of the present application, since the number of over-the-top non-geostationary orbit satellites is more than one, therefore, the signal spectrum analysis parameters can be batch-set according to the working frequency bands of different non-geostationary orbit satellites to obtain the spectrum analysis results of the downlink signals of each non-geostationary orbit satellite over the current time period.

[0083] Among them, in step S12-1, the spectrum analysis results may include: no signal, detecting the downlink beacon signal of a non-geostationary orbit satellite, and detecting the downlink service signal of a non-geostationary orbit satellite. Among them, no signal means that there is no downlink signal sent by a non-geostationary orbit satellite within the current beam coverage. Exemplarily, although some non-geostationary orbit satellites may pass overhead, they may not provide satellite communication services within the area to be blocked. In this case, the spectrum analysis result is no signal. In the embodiments of the present application, the downlink signals in non-geostationary orbit satellites can be further divided into two types: downlink beacon signals and downlink service signals.

[0084] Among them, the downlink beacon signal is a continuous and stable radio frequency signal emitted by a satellite, equivalent to a "lighthouse" signal, providing a stable reference signal for ground terminal devices so that the ground terminal devices can accurately align with the satellite. Among them, the beacon signal can be clearly determined from the spectrum analysis results. This beacon signal is usually a single-frequency signal or a narrowband signal. In addition, the level value of the frequency where the beacon signal is located is higher than the surrounding noise level value. Whether it specifically belongs to the downlink beacon signal can be quickly determined according to the single-frequency signal or narrowband signal and the level value.

[0085] Among them, the downlink service signal refers to a signal containing actual communication content, which can specifically be a voice service signal, a data service signal, or a video service signal. This service signal can also be clearly determined from the spectrum analysis results. This service signal is usually a broadband signal with obvious broadband attributes. Specifically, it can be determined whether satellite communication services are carried out within the area to be blocked according to the public information of non-geostationary orbit satellites.

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

[0087] Further, according to the set monitoring link measurement rule, determine the signal form of the downlink service signal. Among them, 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, connecting line attenuation value measurement rule, etc. The specific measurement rule can be flexibly selected according to the actual application scenario, and this application does not make strict limitations. Through the set monitoring link measurement rule, the radiation intensity in different directions of the downlink service signal can be determined according to the signal gain, and the radiation intensity in different directions is the signal form of the downlink service signal.

[0088] Among them, the signal form of the downlink service signal includes: main lobe signal or side lobe signal. Among them, the main lobe signal refers to the signal lobe with the largest radiation intensity. If the downlink service signal is the main lobe signal, it is determined that the non-geostationary satellite to be blocked provides satellite communication services for the current area to be blocked. If the downlink service signal is the side lobe signal, it indicates that the satellite communication services mainly provided by the non-geostationary satellite to be blocked are not located in the current area to be blocked. In this way, when performing step S12-3, if the signal form of the downlink service signal is the main lobe signal, since there are satellite communication services provided, it means that there are ground terminal devices that have satellite communication interactions with the non-geostationary satellite. At this time, start the process of listening to the downlink signal and monitor the uplink signal within the beam coverage range to block the radio signal of the ground terminal device with satellite communication interactions.

[0089] If the signal form of the downlink service signal is the side lobe signal, it means that the ground terminal devices in the current area to be blocked cannot have satellite communication interactions with the corresponding non-geostationary satellite, and there is no need to detect the uplink signal within the beam coverage range. In this way, it can also help save the energy consumption of the device performing the blocking operation. In other words, if the signal form of the downlink service signal is the main lobe signal, it indicates that the non-geostationary satellite or the satellite chain network composed of multiple non-geostationary satellites has normally carried out services in the area to be blocked, and the probability of discovering ground terminal devices later is relatively high; if it is determined that the signal form of the downlink service signal is the side lobe signal, it indicates that the satellite communication services provided by the non-geostationary satellite or the satellite chain network do not cover the monitoring system deployment area, and the signal leaks, resulting in the signal covering an additional coverage area, and the probability of discovering ground terminal devices in this additional coverage area is relatively low.

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

[0091] In some possible embodiments, during the execution of step S12, determining the first signal characteristics to be recognized of the downlink signal and the second signal characteristics to be recognized of the uplink signal can be achieved by the following methods:

[0092] S12-4. Perform spectrum analysis on the downlink signal, and determine one or more of the frequency, amplitude, phase, and bandwidth of the downlink signal as the first signal characteristics to be recognized of the downlink signal;

[0093] S12-5. Perform spectrum analysis on the uplink signal, and determine one or more of the frequency, amplitude, phase, and bandwidth of the uplink signal as the second signal characteristics to be recognized.

[0094] In the embodiments of the present application, when performing spectrum analysis on the downlink signal and the uplink signal, the following content of the downlink signal and the uplink signal can be specifically obtained: frequency range and bandwidth information, power spectral density (which can be a power spectral density curve), peak frequency, valley frequency, amplitude, specific modulation method, signal phase, noise ratio, etc. information. In the embodiments of the present application, by selecting one or more of the frequency, amplitude, phase, bandwidth, etc. information of the downlink signal as signal characteristics, it is used as the signal characteristics to be recognized of the downlink signal. The signal characteristics to be recognized here are only a differential naming method for setting signal characteristics for the convenience of matching with the subsequent signal characteristics, and do not represent the signal characteristics that need to be recognized in the downlink signal. Similarly, the first signal characteristics to be recognized and the second signal characteristics to be recognized are only a differential naming method for facilitating the distinction between the signal characteristics of the downlink signal and the signal characteristics of the uplink signal, and do not represent a signal characteristic to be recognized in the downlink signal and another signal characteristic to be recognized.

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

[0096] Thus, in the embodiments of the present application, in step S13, the signal characteristics of the set downlink signal and the signal characteristics of the set uplink signal are determined in advance according to the satellite communication parameters of the non-geostationary orbit satellite. In the embodiments of the present application, the satellite communication parameters of the non-geostationary orbit satellite may include: the working frequency band of the non-geostationary orbit satellite, the frequency corresponding to the signal transmitted by the antenna of the non-geostationary orbit satellite, etc. Thus, according to the satellite communication parameters of the non-geostationary orbit satellite, the specific information such as the specific frequency, amplitude, phase, bandwidth, etc. of the radio signal that conforms to the satellite communication service provided by the non-geostationary orbit satellite can be determined.

[0097] Furthermore, 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 signal characteristics to be identified of the downlink signal and the second signal characteristics to be identified of the uplink signal monitored by the monitoring device, the first matching degree between the reference downlink signal characteristics and the first signal characteristics to be identified is calculated, and the second matching degree between the reference uplink signal characteristics and the second signal characteristics to be identified is calculated. Among them, the matching degree can be the similarity of a single signal characteristic, such as the similarity of frequency. It can also be the weighted similarity of multiple signal characteristics, such as the weighted similarity of four signal characteristics including frequency, amplitude, phase, bandwidth, etc.

[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 area to be blocked that conducts satellite communication interaction with the non-geostationary orbit satellite to be blocked. At this time, the target ground terminal device can be searched to determine the specific position information of the target ground terminal device. Among them, as a possible implementation method, the monitoring device can execute steps S11 and S12 to determine the ground terminal device with satellite communication, and then the signal search device searches for the target ground terminal device based on the monitoring results of the monitoring device. Thus, in the process of executing the above step S13, the position information of the target ground terminal device corresponding to the second signal characteristics to be identified can be determined through the following steps:

[0099] Send a terminal search signal to each signal search device within the beam coverage range, so that each signal search device searches for the location information of the target ground terminal device based on the terminal search signal. Among them, the target second signal feature to be recognized with a signal feature matching degree greater than the second preset matching degree threshold is carried in the terminal search signal.

[0100] In the embodiment of the present application, it is equivalent to the monitoring device performing signal monitoring on downlink signals and uplink signals, and performing spectrum analysis to determine whether there is a non-geostationary orbit satellite for satellite service and a ground terminal device for satellite communication interaction with the non-geostationary orbit satellite for service. Further, a terminal search signal is sent to each signal search device pre-deployed within the beam coverage range, and each signal search device is controlled to accurately determine the specific location of the target ground terminal device based on the terminal search signal, providing an accurate information basis for subsequent wireless interruption of the target ground terminal device.

[0101] The signal search device is any electronic device with signal search capabilities, which can be a signal detector, a signal monitoring vehicle, a signal monitoring radio station, etc. Among them, after determining the existence of the target terminal device, a terminal device search system is set up at a high and good vision position, and the specific search for the target terminal device is carried out in cooperation with the signal monitoring vehicle moving on the ground. Among them, the terminal device search system can use a traditional parabolic antenna with a servo motor to detect uplink signals. The servo motor has the ability to rotate horizontally and vertically, which helps to more accurately determine the specific location of the target ground terminal device corresponding to the signal feature of the second signal feature to be recognized.

[0102] Specifically, the signal search device can determine monitoring parameters such as the start frequency, stop frequency, RBW, VBW, maximum signal level, minimum signal level, etc., rotate the rotation angle of the servo motor according to the target second signal feature to be recognized carried in the terminal search signal, monitor the uplink signal, and perform spectrum analysis on the monitored uplink signal until a target signal with the same signal feature as the target second signal feature to be recognized is found. During the process, the servo motor can be rotated manually to determine the direction of the maximum signal source, and the specific location information of the target terminal device can be determined by the triangulation method in cooperation with other signal search devices. In this way, the signal search device with signal search capabilities can be used to assist in accurately determining the location of the target ground terminal device.

[0103] Then, on this basis, step S14 is executed to start the blocking process and wirelessly block the target ground terminal device. Specifically, an interference signal can be sent to the target ground terminal device, and this interference signal is the blocking signal, which can interfere with the communication connection between the target ground terminal device and the non-geostationary orbit satellite. Among them, the blocking device can set the start frequency and stop frequency of operation, 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 from receiving the downlink signal sent by the non-geostationary orbit satellite, thereby achieving the suppression of the downlink signal.

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

[0105] Sending a start blocking instruction and the beam coverage time interval to the blocking device within the beam coverage range, so that the blocking device starts the working mode within the beam coverage time interval, where the working cycle of the working mode is consistent with the beam coverage time interval.

[0106] By selecting the embodiment of the present application, the blocking device can start the working mode only within the beam coverage time interval of the non-geostationary orbit satellite, complete the corresponding working cycle within this beam coverage time interval, that is, perform wireless blocking of satellite signals only within the beam coverage time interval of this non-geostationary orbit satellite, and there is no need for the blocking device to be in the working mode for 24 hours, which can effectively save the usage cost of the blocking device.

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

[0108] A monitoring device 301, which is used to obtain the beam landing situation of the non-geostationary orbit satellite to be blocked. Among them, the beam landing situation includes: the beam coverage range of the non-geostationary orbit satellite; within the beam coverage range, monitoring the downlink signal of the non-geostationary orbit satellite and the uplink signal sent by the ground terminal device, and determining the first signal feature to be recognized of the downlink signal and the second signal feature to be recognized of the uplink signal;

[0109] A signal search device 302, which is used to, if the matching degree between the first signal feature to be recognized and the signal feature of the set satellite downlink signal is greater than the first preset matching degree threshold, and the matching degree between the second signal feature to be recognized and the signal feature of the set terminal uplink signal is greater than the second preset matching degree threshold, then determine the position information of the target ground terminal device corresponding to the second signal feature to be recognized according to the second signal feature to be recognized;

[0110] The blocking device 303 is used to initiate a blocking process and transmit a blocking signal to the location information, where the blocking signal is used to block the communication connection between the ground terminal device and the non-geostationary orbit satellite.

[0111] In some possible embodiments, the signal search device 302 is specifically used for:

[0112] Monitor the downlink signals within the beam coverage range, perform spectrum analysis on the monitored downlink signals, and determine the results of the spectrum analysis of the downlink signals, where the results of the spectrum analysis of the downlink signals include: no signal, detecting the downlink beacon signal of the non-geostationary orbit satellite, and detecting the downlink service signal of the non-geostationary orbit satellite;

[0113] If the results of the spectrum analysis of the downlink signals are: detecting the downlink beacon signal of the non-geostationary orbit satellite and detecting the downlink service signal of the non-geostationary orbit satellite, then determine the signal form of the downlink service signal according to the set monitoring link measurement rules.

[0114] If the signal form of the downlink service signal is the main lobe signal, then initiate the process of listening for uplink signals and monitor the uplink signals within the beam coverage range.

[0115] In some possible embodiments, the signal search device 302 is further used for:

[0116] Perform spectrum analysis on the downlink signals, and determine one or more of the frequency, amplitude, phase, and bandwidth of the downlink signals as the first signal features to be identified of the downlink signals;

[0117] Perform spectrum analysis on the uplink signals, and determine one or more of the frequency, amplitude, phase, and bandwidth of the uplink signals as the second signal features to be identified of the uplink signals.

[0118] In some possible embodiments, the signal search device 302 is further used for:

[0119] If the signal form of the downlink service signal is the side lobe signal, then mark the downlink service signal as a non-blocked downlink service signal.

[0120] In some possible embodiments, the signal search device 302 is further used for:

[0121] The set signal features of the downlink signals and the set signal features of the uplink signals are determined in advance according to the satellite communication parameters of the non-geostationary orbit satellite.

[0122] In some possible embodiments, the monitoring device 301 is specifically used for:

[0123] Send a terminal search signal to each signal search device within the beam coverage range, so that each signal search device searches for the location information of the target ground terminal device based on the terminal search signal, where the terminal search signal carries a target second signal feature to be recognized with a signal feature matching degree greater than the second preset matching degree threshold.

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

[0125] Send a start blocking instruction and the beam coverage time interval to the blocking device within the beam coverage range, so that the blocking device starts the working mode during the beam coverage time interval, where the working cycle of the working mode is consistent with the beam coverage time interval.

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

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

[0128] In a third aspect, an exemplary embodiment of this application further provides an electronic device, including: at least one processor; and a memory communicatively connected to the at least one processor. The memory stores a computer program that can be executed by the at least one processor, and when the computer program is executed by the at least one processor, it is used to cause the electronic device to execute the method according to the embodiments of this application.

[0129] An exemplary embodiment of this application further provides a non-transitory computer-readable storage medium storing a computer program, where the computer program, when executed by a processor of a computer, is used to cause the computer to execute the method according to the embodiments of this application.

[0130] An exemplary embodiment of this application further provides a computer program product, including a computer program, where the computer program, when executed by a processor of a computer, is used to cause the computer to execute the method according to the embodiments of this application.

[0131] Reference Figure 4, a block diagram of an electronic device 400 that can be a server or a client of the present application will now be described. It is an example of a hardware device that can be applied to various aspects of the present 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, smart phones, 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 present application described and / or claimed herein.

[0132] As Figure 4 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. In the RAM 403, various programs and data required for the operation of the electronic device 400 can also be stored. The computing unit 401, the ROM 402, and the RAM 403 are connected to each other through a bus 404. An input / output (I / O) interface 405 is also connected to the bus 404.

[0133] Multiple components in the electronic device 400 are connected to the I / O interface 405, including: an input unit 406, an output unit 407, a storage unit 408, and a communication unit 409. The input unit 406 can be any type of device that can input information into the electronic device 400. The input unit 406 can receive input digital or character information, and generate key signal inputs related to the user settings and / or function controls of the electronic device. The output unit 407 can be any type of device that can present information, and can include but is not limited to a display, a speaker, a video / audio output terminal, a vibrator, and / or a printer. The storage unit 408 can include but is not limited to a magnetic disk, an optical disk. The communication unit 409 allows the electronic device 400 to exchange information / data with other devices through a computer network such as the Internet and / or various telecommunication networks, and can include but is not limited to a modem, a network card, an infrared communication device, a wireless communication transceiver, and / or a chipset, such as a BluetoothTM device, a WiFi device, a WiMax device, a cellular communication device, and / or the like.

[0134] The computing unit 401 may be various general-purpose 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 dedicated 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 executes the various methods and processes described above. For example, in some embodiments, the foregoing method for blocking radio signals of a non-geostationary orbit satellite ground terminal may 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 may 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 may be configured to execute the foregoing method for blocking radio signals of a non-geostationary orbit satellite ground terminal in any other suitable manner (e.g., by means of firmware).

[0135] The program code for implementing the method of the present application may be written in any combination of one or more programming languages. These program codes may be provided to a processor or controller of a general-purpose computer, a special-purpose computer, or other programmable data processing device, such that when the program codes are executed by the processor or controller, the functions / operations specified in the flowchart and / or block diagram are implemented. The program code may be executed entirely on the machine, partially on the machine, as a stand-alone software package partially on the machine and partially on a remote machine, or entirely on a remote machine or server.

[0136] In the context of the present application, a machine-readable medium may be a tangible medium that can contain or store a program for use by or in connection with an instruction execution system, apparatus, or device. A machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. A machine-readable medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. More specific examples of a machine-readable storage medium would include an electrical connection based on one or more wires, 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., a magnetic disk, an optical disk, a memory, a programmable logic device (PLD)) that provides 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 that provides machine instructions and / or data to a programmable processor.

[0138] In order to provide for interaction with a user, the systems and techniques described herein 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 also be used to provide for interaction with the user; 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 herein can be implemented in a computing system that includes back-end components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes front-end components (e.g., a user computer having a graphical user interface or a web browser through which the user can interact with an implementation of the systems and techniques described herein), or a computing system that includes any combination of such back-end components, middleware components, 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] A computer system can include a client and a server. The client and server are generally remote from each other and typically interact through a communication network. The client-server relationship is created by computer programs running on the respective computers and having a client-server relationship to each other.

Claims

1. A method for blocking radio signals of a non-geostationary satellite ground terminal, characterized in that: The method comprises: Obtaining the beam landing condition of the non-geostationary orbit satellite to be blocked, wherein the beam landing condition includes: the beam coverage range of the non-geostationary orbit satellite; Within the beam coverage, monitoring the downlink signal of the non-geostationary orbit satellite and the uplink signal sent by the ground terminal device, and determining a first signal feature to be identified of the downlink signal and a second signal feature to be identified of the uplink signal; If the matching degree between the first signal feature to be identified 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 signal feature to be identified and the signal feature of the set terminal uplink signal is greater than a second preset matching degree threshold, then determining the location information of the target ground terminal device corresponding to the second signal feature to be identified according to the second signal feature to be identified; A blocking process is initiated to transmit 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 orbit satellite.

2. The method according to claim 1, characterized in that: The step of monitoring the downlink signal of the non-geostationary orbit satellite and the uplink signal sent by the ground terminal device within the coverage range of the beam includes: Monitoring the downlink signal within the coverage of the beam, and performing spectrum analysis on the monitored downlink signal to determine the result of the spectrum analysis of the downlink signal, wherein the result of the spectrum analysis of the downlink signal includes: no signal, monitoring the downlink beacon signal of the non-geostationary orbit satellite, and monitoring the downlink service signal of the non-geostationary orbit satellite; If the result of the spectrum analysis of the downlink signal is: a downlink beacon signal of the non-geostationary orbit satellite is monitored, and a downlink service signal of the non-geostationary orbit satellite is monitored, then according to a set monitoring link measurement rule, a signal form of the downlink service signal is determined; If the signal form of the downlink service signal is a main lobe signal, the uplink signal monitoring process is started to monitor the uplink signal within the beam coverage range.

3. The method according to claim 2, characterized in that The method further comprises: If the signal form of the downlink service signal is a sidelobe signal, the downlink service signal is marked as not blocking the downlink service signal.

4. The method according to claim 1, characterized in that The determining the first signal feature to be identified of the downlink signal and the second signal feature to be identified of the uplink signal includes: Performing spectrum analysis on the downlink signal, and determining one or more of the frequency, amplitude, phase, and bandwidth of the downlink signal as a first signal feature to be identified of the downlink signal; Perform spectrum analysis on the uplink signal, and determine one or more of the frequency, amplitude, phase, and bandwidth of the uplink signal as a second feature to be identified of the uplink signal.

5. The method according to claim 4, characterized in that The signal characteristics of the set downlink signal and the signal characteristics of the set uplink signal are determined in advance according to the satellite communication parameters of the non-geostationary orbit satellite.

6. The method according to claim 1, characterized in that The method is applied to a monitoring device, and determining the location information of a target ground terminal device corresponding to the second signal feature to be identified according to the second signal feature to be identified includes: A terminal search signal is sent to each signal search device within the coverage of the beam, so that each signal search device searches for the location information of the target ground terminal device based on the terminal search signal, wherein the terminal search signal carries a target second signal feature to be identified whose signal feature matching degree is greater than the second preset matching degree threshold.

7. The method according to claim 1, characterized in that The beam landing condition also includes: the beam coverage time interval of the non-geostationary orbit satellite for the area to be blocked, and the method also includes: A blocking start instruction and the beam coverage time interval are sent to the blocking device within the beam coverage range, so that the blocking device starts the working mode in the beam coverage time interval, wherein the working cycle of the working mode is consistent with the beam coverage time interval.

8. A non-geostationary satellite ground terminal radio signal blocking system, characterized in that: The system comprises: A monitoring device is used to obtain the beam landing condition of the non-geostationary orbit satellite to be blocked, wherein the beam landing condition includes: the beam coverage range of the non-geostationary orbit satellite; within the beam coverage range, monitoring the downlink signal of the non-geostationary orbit satellite and the uplink signal sent by the ground terminal device, and determining the first signal feature to be identified of the downlink signal and the second signal feature to be identified of the uplink signal; A signal search device, configured to determine the location information of a target ground terminal device corresponding to the second signal feature to be identified according to the second signal feature to be identified, if the matching degree between the first signal feature to be identified 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 signal feature to be identified and the signal feature of the set terminal uplink signal is greater than a second preset matching degree threshold; A blocking device is used to start a blocking process and transmit 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 orbit satellite.

9. An electronic device, characterized in that: The electronic device comprises: a processor and a memory storing a program; wherein the program comprises instructions, and when the instructions are executed by the processor, the processor executes the method according to any one of claims 1 to 7.

10. A non-transitory computer-readable storage medium storing computer instructions, characterized in that: The computer instructions are used to make a computer execute the method according to any one of claims 1-7.

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