Low-altitude unmanned aerial vehicle defense method, device and system

Abstract

The invention relates to the technical field of unmanned aerial vehicles, and particularly discloses a low-altitude unmanned aerial vehicle defense method, which comprises the following steps: obtaining a countering strategy signal issued by an upper computer; judging whether the countering strategy signal is a complete cracking signal or not; if the countering strategy signal is a complete cracking signal, generating a precise striking signal; performing signal processing on the precise striking signal to obtain a precise striking amplification signal; transmitting the precise striking amplification signal; if the countering strategy signal is a non-complete cracking signal, generating a broadband interference signal; performing signal processing on the broadband interference signal to obtain a broadband interference amplification signal; and transmitting the broadband interference amplification signal. The invention further discloses a low-altitude unmanned aerial vehicle defense device and system. According to the low-altitude unmanned aerial vehicle defense method provided by the invention, various types of vehicles can be covered, so that the black flight unmanned aerial vehicle can be countered more effectively.

Description

technical field [0001] The invention relates to the technical field of unmanned aerial vehicles, in particular to a low-altitude unmanned aerial vehicle defense method, a low-altitude unmanned aerial vehicle defense device and a low-altitude unmanned aerial vehicle defense system comprising the low-altitude unmanned aerial vehicle defense device. Background technique [0002] At present, UAV defense is mainly divided into two methods: high-power suppression and precision strike. High-power suppression is mainly to send higher-power interference signals in the UAV communication frequency band to suppress and interfere with the communication between the UAV and the remote control. The specific implementation is as follows: figure 1 As shown, the frequency sweep signal generated by the frequency sweep oscillator is generally a broadband signal, which occupies the entire frequency band of the UAV communication. After filtering and broadband amplifier, it interferes with the comm...

AI Technical Summary

Problems solved by technology

[0004] The precision strike function needs to crack the flight control communication protocols of different brands of drones offline in advance, and establish its own cracking database. Defense, the formation of defense loopholes, while limited by the relationship between the strength of the radio signal, when the radio signal is weak, it is also impossible to complete the cracking of the UAV communication protocol in the database, and complete the defense work, will also form a defense loophole

[0005] There is no solution to the above-mentioned problems in UAV defense

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