UAV interference system and method based on electromagnetic interference

Abstract

The invention relates to an UAV interference system and method based on electromagnetic interference, used for solving the problem that other normal radio communication is influenced by too high interference power and other related frequency devices are suppressed due to the fact that a suppression interference mode adopted in existing electromagnetic interference is in high power full- band coverage. The interference system comprises a reconnaissance sub-system and an interference sub-system; the reconnaissance sub-system comprises an L-band omnidirectional reconnaissance antenna, an S-band omnidirectional reconnaissance antenna, a C-band omnidirectional reconnaissance antenna, a down-conversion processing module, an intermediate-frequency processing module, a frequency hopping signal analysis module, a frequency hopping signal despreading and demodulation module, a guide interference module and a high-speed acquisition storage card; and the interference sub-system comprises an intermediate-frequency modulator unit, a converter unit, a signal filtering, switching and synthesizing unit, an L-band interference power amplification antenna unit, an S-band interference power amplification antenna unit, a C-band interference power amplification antenna unit and a control unit. The invention further provides an interference method based on the interference system.

Description

technical field [0001] The present invention relates to the field of unmanned aerial vehicles, in particular to an unmanned aerial vehicle interference system and interference method based on electromagnetic interference. Background technique [0002] At present, the low-altitude defense methods for UAVs mainly include laser damage strikes, capture network capture, sound wave interference and radio signal interference. The first three methods all have corresponding deficiencies, such as: laser strikes have great safety hazards, especially in airports and other environments with high requirements, and will produce debris; while capture network capture has shortcomings such as short operating distance and inconspicuous effects. . Compared with the traditional hard destruction methods such as missiles and anti-drone in the military field, it adopts the form of electromagnetic interference, and the use process does not affect the surrounding environment, facilities, and personn...

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Problems solved by technology

[0006] The purpose of the present invention is to solve the problem of suppressing other related frequency equipment by using high-power full-band coverage in the suppression interference mode adopted by

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