CN111707141A - Counter-control method for remote control signal of unmanned aerial vehicle - Google Patents
Counter-control method for remote control signal of unmanned aerial vehicle Download PDFInfo
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- CN111707141A CN111707141A CN202010604186.7A CN202010604186A CN111707141A CN 111707141 A CN111707141 A CN 111707141A CN 202010604186 A CN202010604186 A CN 202010604186A CN 111707141 A CN111707141 A CN 111707141A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
- F41H11/00—Defence installations; Defence devices
- F41H11/02—Anti-aircraft or anti-guided missile or anti-torpedo defence installations or systems
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Abstract
The invention relates to the technical field of unmanned aerial vehicle counter-control, in particular to a counter-control method for a remote control signal of an unmanned aerial vehicle, which comprises two modes of wireless remote control signal interference and wireless remote control signal deception; the wireless remote control signal interference comprises the following steps: s1, generating an electromagnetic suppression signal for interfering the unmanned aerial vehicle communication by using a signal generator; s2, generating an electromagnetic pulse with certain power by the electromagnetic suppression signal through a microwave power amplifier and a high-gain directional antenna; s3, the black flying unmanned aerial vehicle has no accurate terrain coordinates, and the information obtained by the camera and the video camera has no value, so that the aim of countering the unmanned aerial vehicle is fulfilled; wireless remote control signal spoofing comprises the steps of: (1) generating a suppression signal, and sending the suppression signal to the black flying unmanned aerial vehicle so as to shield communication between the black flying unmanned aerial vehicle and the user remote control terminal; (2) intercepting a user remote control terminal signal; (3) capturing a GPS signal of a black-flying unmanned aerial vehicle; (4) and generating a false control signal to control the unmanned aerial vehicle.
Description
Technical Field
The invention relates to the technical field of unmanned aerial vehicle counter-control, in particular to a counter-control method for a remote control signal of an unmanned aerial vehicle.
Background
In recent years, with the rapid development of aircrafts such as unmanned planes and the like and the gradual opening of low-altitude airspace control, the phenomena of illegal ascent, black flight and the like of the low-slow small unmanned planes occur, so that the tracking and destroying of the low-slow small unmanned planes are needed to be realized so as to resist the illegal ascent of the low-slow small unmanned planes.
At present, the main current counter-braking solutions of the light and small unmanned aerial vehicles in the market are all technical solutions based on active detection radar detection, radio monitoring, photoelectric detection and wireless voltage system interference or a combination of a plurality of technologies, wherein the counter-braking part mainly relies on a high-power interference suppression technology, a frequency sweeping mode is adopted to interfere with remote control and an image transmission link of the low-altitude unmanned aerial vehicle, so that the unmanned aerial vehicle is forced to lose control and return to the air, force to land or drive away, electromagnetic radiation influence is brought due to high-power interference, civil facilities under urban environment can be influenced to bring public panic, and policy risks are particularly brought when the unmanned aerial vehicle is used in regions such as airports and the like, and the application range is limited.
Disclosure of Invention
The invention provides a method for countering a remote control signal of an unmanned aerial vehicle, which aims to solve the problems in the prior art.
The invention relates to a method for countering remote control signals of an unmanned aerial vehicle, which comprises two modes of wireless remote control signal interference and wireless remote control signal deception;
the wireless remote control signal interference comprises the following steps:
s1, generating an electromagnetic suppression signal for interfering the unmanned aerial vehicle communication by using a signal generator;
s2, generating electromagnetic pulses with certain power by the electromagnetic suppression signals through a microwave power amplifier and a high-gain directional antenna, and performing directional interference on the black-flying unmanned aerial vehicle, so that the black-flying unmanned aerial vehicle can only depend on an inertial navigation system based on a gyroscope and cannot obtain sufficiently accurate self coordinate data;
s3, the black flying unmanned aerial vehicle has no accurate terrain coordinates, and the information obtained by the camera and the video camera has no value, so that the aim of countering the unmanned aerial vehicle is fulfilled;
wireless remote control signal spoofing comprises the steps of:
(1) generating a suppression signal, and sending the suppression signal to the black flying unmanned aerial vehicle so as to shield communication between the black flying unmanned aerial vehicle and the user remote control terminal;
(2) intercepting a user remote control terminal signal, carrying out down-conversion, analog-to-digital conversion, filtering, de-spreading, demodulation and decoding on the captured radio signal, cracking protocols including a link layer, a network layer and an application layer, and accurately analyzing the characteristics of the radio signal of the unmanned aerial vehicle;
(3) capturing a GPS signal of the black-flying unmanned aerial vehicle, analyzing the GPS signal, generating a false GPS signal by using a GPS simulator, adjusting parameters of the false GPS signal, and sending the false GPS signal to the black-flying unmanned aerial vehicle;
(4) the characteristics of the radio signals of the unmanned aerial vehicle are simulated, a false control signal is generated, and the unmanned aerial vehicle is controlled, so that the aim of countering the unmanned aerial vehicle is fulfilled.
The false GPS signal in the step (2) is a no-fly area, and the black-flying unmanned aerial vehicle hovers or is forced to land after receiving the false GPS signal.
The invention discloses a method for countering remote control signals of an unmanned aerial vehicle, which comprises the step (1) that a suppression signal generator is arranged on a biaxial servo platform, the signal generator is an unmanned aerial vehicle countering gun, the angle adjusting range of a pitch angle of the unmanned aerial vehicle countering gun is 0-180 degrees, and the angle adjusting range of an azimuth angle of the unmanned aerial vehicle countering gun is 0-360 degrees.
In the step (4), after the false control signal is generated, all the features of the intercepted user remote control terminal signal and the corresponding false control signal are recorded to form a database.
The invention discloses a method for countering remote control signals of an unmanned aerial vehicle, which comprises the step (3) of recording all characteristics of GPS signals of a black flying unmanned aerial vehicle and corresponding false GPS signals to form a database.
Compared with the prior art, the invention has the beneficial effects that: the remote control terminal is disconnected with the unmanned aerial vehicle through signal interference on the user remote control terminal, so that the purpose of unmanned aerial vehicle counter-braking is achieved; through intercepting and simulating the remote control signal of the unmanned aerial vehicle, the unmanned aerial vehicle is subjected to decoy navigation, so that the unmanned aerial vehicle lands stably, and the purpose of countering the unmanned aerial vehicle is achieved.
Detailed Description
The following examples are given to further illustrate the embodiments of the present invention. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
The invention relates to a method for countering remote control signals of an unmanned aerial vehicle, which comprises two modes of wireless remote control signal interference and wireless remote control signal deception;
the wireless remote control signal interference comprises the following steps:
s1, generating an electromagnetic suppression signal for interfering the unmanned aerial vehicle communication by using a signal generator;
s2, generating electromagnetic pulses with certain power by the electromagnetic suppression signals through a microwave power amplifier and a high-gain directional antenna, and performing directional interference on the black-flying unmanned aerial vehicle, so that the black-flying unmanned aerial vehicle can only depend on an inertial navigation system based on a gyroscope and cannot obtain sufficiently accurate self coordinate data;
s3, the black flying unmanned aerial vehicle has no accurate terrain coordinates, and the information obtained by the camera and the video camera has no value, so that the aim of countering the unmanned aerial vehicle is fulfilled;
wireless remote control signal spoofing comprises the steps of:
(1) generating a suppression signal, and sending the suppression signal to the black flying unmanned aerial vehicle so as to shield communication between the black flying unmanned aerial vehicle and the user remote control terminal;
(2) intercepting a user remote control terminal signal, carrying out down-conversion, analog-to-digital conversion, filtering, de-spreading, demodulation and decoding on the captured radio signal, cracking protocols including a link layer, a network layer and an application layer, and accurately analyzing the characteristics of the radio signal of the unmanned aerial vehicle;
(3) capturing a GPS signal of the black-flying unmanned aerial vehicle, analyzing the GPS signal, generating a false GPS signal by using a GPS simulator, adjusting parameters of the false GPS signal, and sending the false GPS signal to the black-flying unmanned aerial vehicle;
(4) the characteristics of the radio signals of the unmanned aerial vehicle are simulated, a false control signal is generated, and the unmanned aerial vehicle is controlled, so that the aim of countering the unmanned aerial vehicle is fulfilled.
The false GPS signal in the step (2) is a no-fly area, and the black-flying unmanned aerial vehicle hovers or is forced to land after receiving the false GPS signal.
The invention discloses a method for countering remote control signals of an unmanned aerial vehicle, which comprises the step (1) that a suppression signal generator is arranged on a biaxial servo platform, the signal generator is an unmanned aerial vehicle countering gun, the angle adjusting range of a pitch angle of the unmanned aerial vehicle countering gun is 0-180 degrees, and the angle adjusting range of an azimuth angle of the unmanned aerial vehicle countering gun is 0-360 degrees.
In the step (4), after the false control signal is generated, all the features of the intercepted user remote control terminal signal and the corresponding false control signal are recorded to form a database.
The invention discloses a method for countering remote control signals of an unmanned aerial vehicle, which comprises the step (3) of recording all characteristics of GPS signals of a black flying unmanned aerial vehicle and corresponding false GPS signals to form a database.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (5)
1. A counter-control method for a remote control signal of an unmanned aerial vehicle is characterized by comprising two modes of wireless remote control signal interference and wireless remote control signal deception;
the wireless remote control signal interference comprises the following steps:
s1, generating an electromagnetic suppression signal for interfering the unmanned aerial vehicle communication by using a signal generator;
s2, generating electromagnetic pulses with certain power by the electromagnetic suppression signals through a microwave power amplifier and a high-gain directional antenna, and performing directional interference on the black-flying unmanned aerial vehicle, so that the black-flying unmanned aerial vehicle can only depend on an inertial navigation system based on a gyroscope and cannot obtain sufficiently accurate self coordinate data;
s3, the black flying unmanned aerial vehicle has no accurate terrain coordinates, and the information obtained by the camera and the video camera has no value, so that the aim of countering the unmanned aerial vehicle is fulfilled;
wireless remote control signal spoofing comprises the steps of:
(1) generating a suppression signal, and sending the suppression signal to the black flying unmanned aerial vehicle so as to shield communication between the black flying unmanned aerial vehicle and the user remote control terminal;
(2) intercepting a user remote control terminal signal, carrying out down-conversion, analog-to-digital conversion, filtering, de-spreading, demodulation and decoding on the captured radio signal, cracking protocols including a link layer, a network layer and an application layer, and accurately analyzing the characteristics of the radio signal of the unmanned aerial vehicle;
(3) capturing a GPS signal of the black-flying unmanned aerial vehicle, analyzing the GPS signal, generating a false GPS signal by using a GPS simulator, adjusting parameters of the false GPS signal, and sending the false GPS signal to the black-flying unmanned aerial vehicle;
(4) the characteristics of the radio signals of the unmanned aerial vehicle are simulated, a false control signal is generated, and the unmanned aerial vehicle is controlled, so that the aim of countering the unmanned aerial vehicle is fulfilled.
2. A counter-measure against the remote control signals of the drone according to claim 1, wherein the false GPS signals in step (2) are no-fly zones, and the black-fly drone hovers or forces to land after receiving the false GPS signals.
3. The method according to claim 2, wherein in step (1), the suppressing signal generator is mounted on the two-axis servo platform, the signal generator is a reaction gun of the unmanned aerial vehicle, the pitch angle of the reaction gun of the unmanned aerial vehicle is 0-180 °, and the azimuth angle of the reaction gun of the unmanned aerial vehicle is 0-360 °.
4. A counter-acting method for remote control signals of unmanned aerial vehicles according to claim 3, wherein in step (4), after the generation of the false manipulation signal, all the features of the intercepted user remote control terminal signal and the corresponding false manipulation signal are recorded to form a database.
5. A counter-measure to drone remote control signals according to claim 4, characterised by that in step (3) all the characteristics of black-flying drone GPS signals and the corresponding false GPS signals are recorded, forming a database.
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| CN107222238A (en) * | 2017-05-18 | 2017-09-29 | 无锡睿思凯科技股份有限公司 | A kind of communication means and communication system based on half-duplex RF hopping communication protocol |
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