Real-time tracking aiming type unmanned aerial vehicle interference method

A real-time tracking and unmanned aerial vehicle technology, applied in the direction of communication interference, electrical components, etc., can solve the problems of large interference bandwidth, high transmission power, low interference efficiency, etc., and achieve the effect of light weight and small size

Pending Publication Date: 2022-04-08
成都能通科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Radio signal monitoring and identification includes analyzing parameters such as frequency, bandwidth, modulation mode, and frequency hopping pattern of the signal, extracting signal characteristics, and using the received signal to analyze the communication mode of the drone and even identify the model of the drone, but the monitoring is generally It is to analyze the collected data through computer software, which takes a long time and cannot track frequency hopping
[0006] The interference suppression signal required for directional high-power interference signal suppression has a large interference bandwidth, high transmission power, and low interference efficiency

Method used

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  • Real-time tracking aiming type unmanned aerial vehicle interference method
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  • Real-time tracking aiming type unmanned aerial vehicle interference method

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Experimental program
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Embodiment 1

[0075] This embodiment proposes a real-time tracking and targeting UAV jamming method, based on real-time tracking and targeting UAV jammers; figure 1 , figure 2 As shown, the real-time tracking and targeting UAV jammer includes a receiving antenna, a transmitting antenna, a power amplifier module, an agile frequency module, an FPGA unit, and a reference clock signal module;

[0076] The FPGA unit includes a data processing module, a switching control module, a receiving module, a transmitting module, a local interference signal generation module, and a forwarding interference signal module;

[0077] The data processing module is connected to the receiving module, the local interference signal generation module, the forwarding interference signal module, the switching control module, and the frequency agility module; the data processing module is connected to the transmitting module through the local interference signal generation module and the forwarding interference signal...

Embodiment 2

[0088] In this embodiment, on the basis of the above-mentioned embodiment 1, in order to better realize the present invention, further, the local interference signal generating module includes two DDS chips arranged in parallel;

[0089] In the step 5, the interference signal generated by the local interference signal generation module is a specific generation method of a chirp signal: adopt two parallel DDS chips to generate the required chirp signal; two DDS chips The parameter setting method is as follows:

[0090] For a single DDS chip, define the instantaneous frequency of generating a chirp signal as Freq[n], and the starting frequency as f 0 , the frequency change step is f Δ , the step size is t, and the sampling rate is recorded as f s ; The calculation formula of Freq[n] for the instantaneous frequency is as follows:

[0091] Freq[n] = f 0 + f Δ *mod(n,t);

[0092] Where mod(n,t) means to take the remainder when n is divided by t;

[0093] Then the normalized ...

Embodiment 3

[0110] In this embodiment, on the basis of any one of the foregoing embodiments 1-2, in order to better realize the present invention, further, a RAM chip is provided in the forwarding interference signal module;

[0111] In the step 5, the specific operation of using the forwarding interference signal module to generate the baseband signal of the interference signal is: when the data processing module of the FPGA unit performs the fast Fourier transform FFT of step 4, use the RAM chip to synchronize the current processing data Store, and judge whether the currently received signal data is a UAV communication signal; if it is judged that the currently received signal data is a UAV communication signal, then stop modifying the data in the RAM chip and store it in the RAM chip The data is sent into the air through the transmitting antenna as a jamming signal.

[0112] Other parts of this embodiment are the same as those of any one of Embodiments 1-2 above, so details are not rep...

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Abstract

The invention provides a real-time tracking and aiming type unmanned aerial vehicle interference method, which is based on a real-time tracking and aiming type unmanned aerial vehicle jammer, and the real-time tracking and aiming type unmanned aerial vehicle jammer comprises a receiving antenna, a transmitting antenna, a power amplifier module, a frequency agility module, an FPGA unit and a reference clock signal module. The FPGA unit comprises a data processing unit, a switching control module, a receiving module, a transmitting module, a local interference signal generation module and an interference signal forwarding module; through the arrangement, the position of the signal in a frequency spectrum is rapidly detected by using the received communication signal which is generally a frequency hopping signal between the unmanned aerial vehicle and the remote controller, and the local interference signal generation module or the interference signal forwarding module is selected to generate an interference suppression signal with relatively small bandwidth and strong pertinence according to the detected condition; interference suppression is quickly performed on a frequency hopping signal within the time of keeping a carrier wave.

Description

technical field [0001] The invention belongs to the field of anti-drone technology, and in particular relates to a real-time tracking and aiming UAV jamming method. Background technique [0002] Anti-UAV technology is to use radio technology to track and monitor the communication signals of UAVs and take corresponding countermeasures. By making one or more of the UAV's navigation system, positioning system, control system or communication system Failure, and ultimately the technology that renders the UAV incapable of combat. [0003] The means of UAV tracking and monitoring mainly include radar monitoring, radio signal monitoring, photoelectric tracking and acoustic wave identification. [0004] UAV countermeasures mainly include directional high-power jamming signal suppression, laser strikes and physical countermeasures. [0005] Radio signal monitoring and identification includes analyzing parameters such as frequency, bandwidth, modulation mode, and frequency hopping p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04K3/00
Inventor 章新城
Owner 成都能通科技股份有限公司
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