WO2017197939A1 - Anti-unmanned aerial vehicle method and system - Google Patents

Abstract

An anti-unmanned aerial vehicle method and system (10). The method comprises: presetting a safety area and arranging antennas according to an area of coverage (S1); simulating a scene, and forming, by generating simulation location information of the safety area, an anti-navigation signal to be received by an unmanned aerial vehicle (S2); and replacing a real satellite signal to be received by the unmanned aerial vehicle with the anti-navigation signal when the unmanned aerial vehicle moves to the boundary of the safety area, thereby keeping the unmanned aerial vehicle out of the safety area (S3). The anti-unmanned aerial vehicle system (10) comprises a simulation control computer (1), an anti-navigation signal simulation sub-system (2), a timing sub-system (3), and an antenna feed sub-system (4). The simulation control computer (1) sends an operating instruction to the anti-navigation signal simulation sub-system (2); the anti-navigation signal simulation sub-system (2) simulates and outputs an anti-navigation signal of a safety area on the basis of a clock reference provided by the timing sub-system (3) and transmits the anti-navigation signal to an unmanned aerial vehicle by means of the antenna feed sub-system (4).

Description

 Title of Invention: A Method and System for Anti-Unmanned Aerial Vehicles

 [0001] The present application claims priority to Chinese Patent Application No. 201610338491.X, entitled "A Method and System for Anti-Unmanned Aerial Vehicles", filed on May 19, 2016. The content is incorporated herein by reference.

 Technical field

 [0002] The present invention relates to the field of anti-UAV technology, and more particularly to a method and system for an anti-UAV.

 Background technique

 [0003] With the continuous maturity of the UAV's power source project, the manufacturing cost and use cost of the UAV have been continuously reduced; a large number of UAV R&D, manufacturing, and application companies have also boosted the popularity of civilian UAVs. However, the peers have also brought a series of troubles to people. The drone can sneak at random, steal private information in the area or have major hidden dangers such as placing dangerous goods.

 [0004] At present, domestic anti-UAVs mainly focus on capturing and destroying drones. The means of implementation include the use of microwave weapons to shoot down, destroy drones and low-altitude interception, such as low-altitude interception using fixed launchers or mobile launchers. The "cannonball" that was fired flew near the target drone, and the magnified net entangled the target, causing its control and power system to fail, and snoring the parachute to ensure that the drone landed smoothly. However, the system cost of these two methods is very high, the application range is narrow, and the hit rate is not high. Therefore, the economic security of suppressing the "black fly" and counter-production of the drone is an urgent problem to be solved.

 technical problem

 [0005] The present invention provides a method and system for an anti-hand drone that can accurately improve the security of an unattended/manned security zone against the precise induction and counterattack of the black-flying drone.

 Problem solution

 Technical solution

[0006] A method of anti-UAV, comprising the following steps:

[0007] S1: a preset safety area, and an antenna is arranged according to the area;

[0008] S2: a simulation scenario, forming an anti-navigation signal received by the drone by generating simulation location information of the security area; [0009] S3: The drone enters the edge of the safe area, and replaces the real satellite signal received by the drone by the anti-navigation signal, so that the drone is located outside the safe area.

[0010] A further improvement to the above technical solution is that, in the S2, the simulation scene is generated based on a high-precision enthalpy of the satellite navigation authorization technology and a corresponding second pulse, and the simulation scenario is Synchronization between the daytime and the real environment.

 [0011] A further improvement of the above technical solution is that, in the S2, the simulation position information is a position point or a dynamic track deviating from the security area.

[0012] Further improvement to the above technical solution is that, in the S3, the UAV is located outside the security area, and the UAV is driven away from the security area according to an anti-navigation signal or The human machine is out of control at the edge of the safe area.

 [0013] Further improvement to the above technical solution is that, before the S3, the drone flies to the edge of the security area according to the alleged path, and when the anti-navigation signal is received, the drone drives After leaving the safe area, step S4 is started: the drone re-receives the real satellite signal, drives to the edge of the safe area, and repeats step S3 to cycle.

 [0014] A further improvement to the above technical solution is that the satellite navigation system includes at least one of BDS, GPS, GLON ASS, GALILEO, QZSS, and GAGAN.

 [0015] The present invention also provides a system for an anti-UAV, comprising a simulation control computer and an anti-navigation signal simulation subsystem, an authorization subsystem, and an antenna feeder subsystem, wherein the simulation control computer provides a human-computer interaction interface, and Sending a running command to the anti-navigation signal simulation subsystem, the anti-navigation signal simulation subsystem outputs an anti-navigation signal of the security area based on a cuckoo clock reference provided by the authorization subsystem, and passes the anti-navigation signal The antenna feed subsystem is transmitted to the drone, and the anti-navigation signal includes simulated position information.

 [0016] A further improvement of the above technical solution is that the simulation position information is a position point or a dynamic track deviating from the safety area.

 [0017] A further improvement to the above technical solution is that the running instruction includes at least one of setting an anti-navigation signal power magnitude, ephemeris information, a signal modulation mode, an error model, and trajectory information of the simulated security zone.

[0018] A further improvement to the above technical solution is that the anti-navigation signal simulation subsystem includes a signal generation module Block, the signal generating module includes a baseband unit, an up-conversion unit, and a signal power control unit, the baseband unit receives a clock reference of the authorization subsystem, performs vector modulation by the up-conversion unit, and then passes the The signal power control unit outputs an anti-navigation signal to the antenna feed subsystem.

 [0019] A further improvement to the above technical solution is that the authorization subsystem includes an interconnected frequency processing module, a satellite navigation authorization receiving module, and an application interface module, and the frequency processing module further includes satellite navigation The authorization receiving module performs a system performance monitoring processing unit for monitoring and controlling satellite navigation, and the application interface module is connected to the baseband unit.

 [0020] A further improvement to the above technical solution is that the satellite navigation system includes at least one of BDS, GPS, GLON ASS, GALILEO ^ QZSS, and GAGAN, or the satellite navigation system includes B DS, GPS, GLONASS, Combined satellite navigation of any two or more of GALILEO, QZSS and GAGAN, the system performance monitoring and processing unit of the satellite navigation monitors and controls the combined satellite navigation to form a hot backup technology.

 [0021] A further improvement of the above technical solution is that the antenna feeder subsystem comprises a power splitter and at least one antenna, the antenna being arranged at the center and/or the edge of the security zone.

 [0022] Alternatively, the antenna feeder subsystem is an anti-UAV rifle, and the anti-UAV rifle is provided with a circularly polarized antenna for transmitting an anti-navigation signal generated by the anti-navigation signal simulation subsystem.

 Advantageous effects of the invention

 Beneficial effect

 [0023] Compared with the prior art, the beneficial effects of the method and system of the anti-hand drone of the present invention are:

[0024] 1. The simulation scenario is based on the satellite navigation authorization technology, and outputs a high-precision 吋 base and a corresponding second pulse, completely covering any satellite navigation system, and the simulation signal generated by the method is synchronized with the real environment, and a combination can also be established. The satellite navigation system implements monitoring and monitoring of various types of satellite navigation, and uses the hot backup technology to ensure the continuity of the granting second pulse in phase, thereby ensuring the optimality of the system, and outputting high-precision daytime through the application interface module. Information, 1PPS signal, improve the reliability of the license, the delay is very low, the decoy effect is good, the drone can be driven away from the safe area according to the anti-navigation signal, or the drone is out of control at the edge of the safe area, The edge of the safe area is lost, causing the drone to fly wrong, or the digital transmission link between the drone and its accusation center is invalid, causing the drone system to collapse;

[0025] 2. Inducing the drone by outputting a high-precision real-time simulated satellite navigation signal, without erecting microwave transmission The base station also does not need to set a low-altitude interception defense system. The anti-unmanned aerial vehicle system constructed according to the present invention is economical and has no impact on the surrounding environment, and has wide application range, and is suitable not only for various static important military regions, but also for party and government. The static drone no-fly zone, which is built around the clock for a long time, such as the location of the government, prisons, and other major sports conferences, is also suitable for regular patrols of important important roads, regular patrols of large important facilities, and important personnel. Travel team protection, important resource escort protection areas, etc., start the system according to the task, build a dynamic drone no-fly zone, and fundamentally control and counterattack the "black fly" of the drone in the protected area;

 [0026] 3. The antenna or anti-UAV rifle can be flexibly configured according to the safe environment and range, and the anti-navigation signal can accurately induce and counterattack the UAV, effectively improving the unattended/manned security area. Security within;

 [0027] 4. Compared with the prior art in terms of efficiency, cost and safety, the invention is simple and practical, economical and environmentally friendly, and can accurately and accurately build an accurate anti-UAV system according to the size and environment of the protection area, and output anti-navigation signal power. Linearly controllable, ensuring that it does not interfere with the normal use of the navigation system of other electronic devices around the protected area.

 [0028] In order to better understand the above and other aspects of the present invention, the following preferred embodiments will be described in detail with reference to the accompanying drawings.

 Brief description of the drawing

 DRAWINGS

 1 is a flow chart of a method according to an embodiment of the present invention;

2 is a flow chart of a method according to an embodiment of the present invention;

3 is a schematic structural diagram of a system according to an embodiment of the present invention;

4 is a schematic structural diagram of a system according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of generating an anti-navigation signal according to an embodiment of the present invention; FIG.

6 is a schematic diagram of a design of an authorization subsystem according to an embodiment of the present invention.

[0035] Illustration:

[0036] 10, anti-UAV system; 1, simulation control computer; 2, anti-navigation signal simulation subsystem; 21, signal generation module; 211, baseband unit; 212, up-conversion unit; 213, signal power control unit; 3, the authorization subsystem; 31, the frequency processing module; 311, the system performance monitoring and processing unit of satellite navigation; 312, 吋 frequency standard synthesis unit 312; 32, satellite navigation authorization receiving module; 33, application interface module; 4, antenna feeder subsystem; 41, power distributor; 42, antenna; 5, drone.

Embodiments of the invention

[0037] The present invention will be further described with reference to the accompanying drawings.

 [0038] As shown in FIG. 1 , a flowchart of a method according to an embodiment of the present invention: a method for an anti-UAV, comprising the following steps: S1: preset a security area, and arranging an antenna according to the area;

[0039] S2: simulating the scene, forming an anti-navigation signal received by the drone by generating location information of the security area

[0040] S3: When the drone reaches the edge of the safe area, the real satellite signal received by the drone is replaced by the anti-navigation signal, so that the drone is located outside the safe area.

 [0041] For an area that needs to improve security, set a safe area range, and arrange an antenna according to the size of the security area, for example, by setting a central coordinate point of the area, or a peripheral coordinate point, by calculating factors such as antenna gain and free space loss, A reasonable edge antenna is set; in the simulation scenario, the simulated position information in the simulation scene is a fraudulent position signal deviating from the security area, and the anti-navigation signal that can be received by the drone is transmitted through the edge antenna, and the drone enters the security area. The edge, switching from receiving the real satellite signal to receiving the anti-navigation signal with the location information of the simulated security zone, so that the drone can not identify the real target area, resulting in the inability to enter the security zone, always in the security zone In addition, the reliable control of the drone "black fly" in a fixed security area makes the safe area a "no-fly" area. This static security area can be applied to small laboratories, conference rooms, and stadiums. Important military areas such as schools, hospitals, and party and government Off the seat of important places, such as prisons, conferences and other major sports, to build a full inch long all-weather period laid drone-fly zone, to form an effective barrier against the black fly UAVs.

[0042] Similarly, or the preset safety zone is a moving safety zone, such as a running fleet driving zone, the antenna is installed on the fleet, and as the team moves together, the location information of the security zone in the simulation scenario is A positional information deviating from the safe area, transmitted through the antenna to the anti-navigation signal that the drone can receive, when the "black-flying" drone approaches the edge of the safe area, switching from receiving the real satellite signal to receiving the one Anti-navigation signal with simulated safety zone location information, making the drone unrecognizable The real target area, which leads to the inability to follow the driving team into the safe area, is always outside the safe area. Usually this dynamic safety area can be applied to regular patrols of important roads, regular patrols of large important facilities, and important personnel travel. In the area of fleet protection, important resource escort protection, etc., the system is started according to the mission requirements, and the dynamic drone no-fly zone is constructed. The system launches anti-navigation signals to realize the deception blocking of the black fly drone navigation components on the specific exercise line. Barrier black fly drone.

 [0043] Specifically, in the S2, a high-precision 吋 basis and a corresponding second pulse generated by the satellite navigation authorization technology are generated in the simulation scenario, and the diurnal and real environment of the simulation scenario are performed. Synchronization, delay control in nanoseconds. The method simulation generates an anti-navigation signal whose position actually deviates from the protection area. Due to the real synchronization with the real environment, the anti-navigation signal has a very low delay, the decoy effect is good, and the output anti-navigation signal power is linearly controllable, ensuring that it is not It will interfere with the normal use of other navigation systems in and around the protected area.

 [0044] Preferably, the simulation position information in the simulation scenario is a position point or a dynamic trajectory deviating from the security area, and may be a real simulation scene or a virtual simulation scene, for example, a real coordinate position of the security area to be protected is in a certain Xicheng District No. 100, and the location of the simulation can be set to No. 1 in Xicheng District of a certain city. For example, No. 1 of Xicheng District of a certain city can be a real point in reality, or simulate a change. Dynamic trajectories, or simulations based on dynamic safety zones, are dynamic trajectories or static points or locations that are constantly changing, and these location points or dynamic trajectories are transmitted through the antenna to the incoming drone in the form of anti-navigation signals.

 [0045] A further improvement to the above technical solution is that, in the S3, the drone is located outside the security zone, including two cases, one of which is that the drone drives away from the security zone according to the anti-navigation signal, It is that the drone is out of control at the edge of the safe area, the trek at the edge of the safe area causes the drone to fly wrong, or the digital transmission link between the drone and its accusation center fails, resulting in the drone system breakdown.

[0046] Specifically, as shown in the method flowchart of the embodiment shown in FIG. 2, before the S3, the drone flies to the edge of the security area according to the alleged path, and when the anti-navigation signal is received, After leaving the safe area, step S4 is started: the drone re-receives the real satellite signal, drives to the edge of the safe area, and repeats step S3 to cycle. The drone flies to the edge of the security zone according to the alleged path, unintentionally switching from receiving the real satellite position signal to receiving the anti-navigation signal, and receiving the simulated scene as a position away from the safe area or the inverse of the dynamic trajectory Navigation signal 吋, according to allegations with him The path is compared and it is found that the safe area is not the destination location to be called, and the drone re-receives the real satellite signal after relocating from the safe area, subject to the drone's alleged path flight, and enters the safe area. The edges, in this cycle S3 and S4 steps, so that the drone can never invade the safe area.

 [0047] Further improved, the satellite navigation system includes at least one of BDS, GPS, GLONASS, GALILEO ^ QZSS and GAGAN, and can be compatible with any satellite navigation system, and has a wide application range, and can also implement any two kinds of satellite navigation. Or a combination of multiple, through the hot backup technology, to ensure the continuity of the second pulse in the phase, in this program to determine the satellite source switching 吋, first determine the stable phase difference between the system and the setting time, respectively, immediately Switching and smooth switching to complete the satellite source switching, thus ensuring the optimality of satellite navigation switching, thereby outputting high-precision inter-day information and 1PPS signals, and improving the reliability of satellite navigation authorization. Among them, GPS (Global Positioning System, usually referred to as GPS) is a global positioning system, also known as the global satellite positioning system; Glonass is the GLONAS system, which is the abbreviation of the Russian "GLOBAL NAVIGATION SATELLITE SYSTEM"; GALILEO (Galileo Positioning System) for Galileo Positioning System; BDS (BeiDou Navigation Satellite)

 System, BDS) is China Beidou satellite navigation system, which is a global satellite navigation system developed by China itself; QZSS (Quasi-Zenith Satellite System)

 It is a quasi-zenith satellite system promoted by Japan; GAGAN (GPS Aided Geo Augmented Navigation) is an Indian radio navigation satellite system.

[0048] The present invention also provides an anti-UAV system 10, as shown in FIG. 3, including a simulation control computer 1 and an anti-navigation signal simulation subsystem 2, an authorization subsystem 3, an antenna feeder subsystem 4, and simulation The control computer 1 provides a human-computer interaction interface, and sends a running command to the anti-navigation signal simulation subsystem 2, and the anti-navigation signal simulation subsystem 2 simulates an anti-navigation signal of the security area according to the 吋 clock reference of the authorization subsystem 3 And transmitting an anti-navigation signal to the drone 5 through the antenna feeder subsystem 4, where the anti-navigation signal is simulated location information of the security zone. Preferably, the simulated location information is a location point or a dynamic trajectory that deviates from the security zone.

[0049] Specifically, the running instruction includes at least one of setting an inverse navigation signal power magnitude, ephemeris information, a signal modulation mode, an error model, and a trajectory information of the simulated security zone, and further improving the foregoing technical solution is as shown in the figure As shown in FIG. 6, the anti-navigation signal simulation subsystem 2 includes a signal generation module 21, signal generation The module 21 includes a baseband unit 211, an up-conversion unit 212, and a signal power control unit 213. The baseband unit 211 receives the clock reference of the authorization subsystem 3, is vector-modulated by the up-conversion unit 212, and passes through the signal power control unit. 213 outputs an anti-navigation signal to the antenna feeder subsystem. The baseband unit 211 adopts digital signal processing technology, and is composed of a baseband FPGA and a baseband DA, and performs precise delay control and code and carrier phase control of the digital baseband signal together. The baseband unit 211 exchanges data and instructions through the data bus and the simulation control computer 1. , including navigation messages, observation data, status control, and parameter settings. The baseband unit 211 analog signal output mode is used to generate an IQ differential pair signal, and is vector-modulated by the up-conversion unit 212, and then outputted to the real-world synchronization anti-navigation signal through the signal power control unit 213.

[0050] FIG. 5 is a schematic diagram of the design of the authorization subsystem, wherein the authorization subsystem 3 includes an interconnected frequency processing module 31, a satellite navigation authorization receiving module 32, and an application interface module 33. The processing module 31 further includes a system performance monitoring processing unit 311 for satellite navigation for monitoring and controlling the satellite navigation receiving module 32, and a chirp frequency synthesizing unit 312. The chirp frequency synthesizing unit 312 in this embodiment adopts high precision. The all-digital phase discrimination and high-precision DDS method separates the frequency generation from the correction, and the oscillator operates in a free-running mode. The phase detector adopts the inter-turn expansion technology, which makes the phase resolution of the phase detector reach 0.5 ns, thus solving the high-precision requirement of the phase detector, and intelligently filtering the data obtained from the high-precision phase detector, which will generate The generated clock difference data is sent to the DDS to complete the correction of the local clock, and the differential frequency standard output is generated, and the noise reduction processing is performed through the filter. The initially corrected frequency is sent to the pulse synthesizer, and after entering the debounce and forming circuit, the zero value correction and pulse width control of the second pulse are completed, and the second pulse signal is output through the driving circuit. The application interface module 34 is connected to the baseband unit 211 of the signal generation module 21 in the anti-navigation signal simulation subsystem 2, and the clock reference of the authorization subsystem 3 is transmitted to the baseband unit 211 through the application interface module 34, and is passed through the up-conversion unit 212. The vector modulation is then output to the antenna feed subsystem by the signal power control unit 213 to output an anti-navigation signal.

[0051] Preferably, the satellite navigation system includes at least one of BDS, GPS, GLONASS, GALILEO^QZSS, and GA GAN, and may be any two or more of BDS, GPS, GLONASS, GALILEO, QZSS, and GA GAN. Combined satellite navigation, this anti-UAV system is compatible with any one or two or more combined satellite navigation systems. When there are two or more combined satellite navigation systems, for example: BDS With the GPS system, the BDS and GPS targets are in poor system, The hopping of the target is usually unable to guarantee the continuity of the second pulse signal in phase. As shown in FIG. 5 and FIG. 6, the system performance monitoring and processing unit 311 of the satellite navigation system of the authorization subsystem can perform monitoring and control processing on the BDS and the GPS single system respectively, and form a hot backup by using the two. The technology guarantees the continuity of the pulsed second pulse in phase, ensuring the continuity of the two or more satellite navigation grants the second pulse in phase. In the combined satellite navigation system, when determining the satellite source switching, the first judgment is made. In the system, the stable phase difference between the daytime and the set time, respectively, the immediate switching and smooth switching to complete the satellite source switching, thus ensuring the optimality of satellite navigation switching, thereby outputting high-precision inter-turn information, 1PPS signal, and improving the satellite Navigating the reliability of the license.

[0052] Therefore, compared with the prior art, the anti-navigation signal simulation subsystem 2 in the system generates a deceptively excellent simulation signal based on the high-precision inter-time synchronization system, and the signal strength is stronger than the real signal by more than 10 dB, ensuring The drone smoothly and unconsciously switches to receive the anti-navigation signal generated by the scheme at the edge of the security area, thereby achieving the effect of deception, driving away from the security area or out of control at the edge of the security area. The anti-navigation signal power output from the peer is linearly controllable, ensuring that it does not interfere with the normal use of other navigation systems around the safe area. A further improvement of the above technical solution is that, as shown in FIG. 4, the antenna feeder subsystem 4 includes a power splitter 41 and at least one antenna 42 disposed at the center and/or edge of the security area, according to the topography of the security area and Environment and other factors, such as setting the center coordinate point of the area, or the surrounding coordinate points, by calculating the link loss, antenna gain, free space loss and other factors, set a reasonable number and spacing of the antenna 42, not too small, send The anti-navigation signal strength is too weak, so that the drone can't receive it; nor is it too much, which causes the transmitted anti-navigation signal to be too strong, affecting the operation of electronic devices in or around the area. The anti-navigation signal simulation subsystem 2 controls the software to load the pre-stored simulation scene, and controls the output of the anti-navigation signal power. The anti-navigation signal is transmitted to the antenna 42 through the power amplifier of the power distributor 41, and the radiation covers the entire security area, thereby realizing the area becomes In the no-fly zone, in the range of conventional fixed security areas (such as schools, hospitals, stadiums), the antenna 42 can be placed on the roof, or at the specific coordinate position on the edge of the security zone; for example, regular patrols following important roads, large important facilities The area of conventional patrols, important personnel travel fleet protection, important resource escort protection and other mobile security areas, then the antenna can be placed in the car, as long as it can radiate the entire fleet area, very flexible.

[0053] In another embodiment, the antenna feeder subsystem 4 is replaced by an anti-UAV rifle, and the anti-UAV rifle is provided with a circle. Polarized antenna, used to launch the anti-navigation signal generated by the anti-navigation signal simulation subsystem 2, holding the anti-UAV rifle in the guarded security area, and launching the anti-navigation signal generated by the anti-navigation signal simulation subsystem 2 through the circularly polarized antenna The signal effectively and accurately combats the alien invading drone.

[0054] Through the above embodiments, the solution can choose whether to deploy the antenna feeder subsystem or the anti-UAV rifle equipment according to the environment, area, and whether there is any person to be secured. The scheme realizes the accurate induction and counterattack of the anti-navigation signal to the black-flying drone, effectively improving the security in the unattended/manned security area, and is suitable for small to laboratories, conference rooms, and large stadiums. Schools, hospitals, prisons, etc., covering static or dynamic security areas. Compared with the prior art in terms of efficiency, cost and safety, the invention is simple and practical, economical and environmentally friendly, and can accurately and quickly build an accurate and reliable anti-UAV system according to the size and environment of the protection area.

 The above-mentioned embodiments are merely illustrative of several embodiments of the present invention, and the description thereof is not to be construed as limiting the scope of the invention. It should be noted that various modifications and improvements can be made by those skilled in the art without departing from the spirit and scope of the invention. Therefore, the scope of protection of the invention should be subject to the appended claims.

 Industrial applicability

 [0056] The embodiments of the present invention can be applied to the technical field of anti-UAV. The embodiment of the present invention can accurately induce and counterattack the black-flying drone, and effectively improve the unmanned/manned security area. Security, suitable for small to laboratories, conference rooms, as large as stadiums, schools, hospitals, prisons, etc., covering static or dynamic security areas. Compared with the prior art in terms of efficiency, cost and safety, the invention is simple and practical, economical and environmentally friendly, and can flexibly and quickly build an accurate and reliable anti-UAV system according to the size and environment of the protection area.

Claims

Claim An anti-UAV method, comprising the steps of:  S1: a preset safety area, and an antenna is arranged according to the area;  S2: a simulation scenario, forming an anti-navigation signal received by the drone by generating simulation location information of the security zone;  S3: When the drone reaches the edge of the safe area, the real satellite signal received by the drone is replaced by the anti-navigation signal, so that the drone is located outside the safe area. The anti-UAV method according to claim 1, wherein in the S2, the high-precision enthalpy based on the satellite navigation authorization technology and the corresponding second pulse generation are generated in the simulation scene , the synchronization of the simulation scene and the real environment. The method of the anti-hand drone according to claim 2, wherein in the S2, the simulated position information is a position point or a dynamic track deviating from the safe area. The anti-UAV method according to claim 3, wherein in the S3, the UAV is located outside the security zone, and the UAV is driven away from the UAV according to an anti-navigation signal. The safe area or the drone is out of control at the edge of the safe area. The anti-UAV method according to claim 4, wherein, before said S3, said drone flies to an edge of said security area according to an alleged path, and when said anti-navigation signal is received吋After the drone is located outside the safe area and away from the safe area, step S4: the drone re-receives the real satellite signal, drives to the edge of the safe area, and repeats step S3 to This loop. An anti-UAV system, comprising: a simulation control computer and an anti-navigation signal simulation subsystem, an authorization subsystem, and an antenna feeder subsystem, wherein the simulation control computer provides a human-computer interaction interface, and sends a running instruction Up to the anti-navigation signal simulation subsystem, the anti-navigation signal simulation subsystem outputs an anti-navigation signal of the security area based on the cuckoo clock reference provided by the authorization subsystem, and passes the anti-navigation signal through the antenna feeder The system transmits to the drone, and the anti-navigation signal includes simulation location information; The anti-navigation signal simulation subsystem includes a signal generation module, and the signal generation module includes a baseband unit, an up-conversion unit, and a signal power control unit, and the baseband unit receives the Determining a chirp reference of the chirp subsystem, performing vector modulation by the upconversion unit, and outputting an anti-navigation signal to the antenna feed subsystem through the signal power control unit;  The authorization subsystem includes an interconnected frequency processing module, a satellite navigation authorization receiving module and an application interface module, and the frequency processing module further includes satellite navigation for monitoring and controlling the satellite navigation authorization receiving module. The system performance monitoring processing unit and the 吋 frequency standard synthesizing unit, the application interface module connecting the baseband unit.  [Claim 7] The system of the anti-hand drone according to claim 6, wherein the simulation position information is a position point or a dynamic trajectory deviating from the safety area.  [Claim 8] The anti-UAV system according to claim 7, wherein the operation command comprises setting an inverse navigation signal power magnitude, ephemeris information, a signal modulation mode, an error model, and a simulated security zone. At least one of the trajectory information.  [Claim 9] The anti-UAV system according to claim 8, wherein the satellite navigation system comprises at least one of BDS, GPS, GLONASS, GALILEO, QZSS, and GAGAN; or The satellite navigation system includes combined satellite navigation of any two or more of BDS, GPS, GLONAS S, GALILEO, QZSS and GAGAN, and the system performance monitoring and processing unit of the satellite navigation monitors and controls the combined satellite navigation , forming a hot backup technology.  [Claim 10] The system of an anti-hand drone according to any one of claims 6 to 9, wherein the antenna feeder subsystem comprises a power splitter and at least one antenna, the antenna being arranged in safety Or the center of the area and/or the edge; or, the antenna feeder subsystem is an anti-UAV rifle, the anti-UAV rifle is provided with a circularly polarized antenna, and the circularly polarized antenna is used for transmitting the anti-navigation signal simulation The anti-navigation signal generated by the subsystem.