An electromagnetic interference signal reproduction system and method for unmanned aerial vehicle data link testing

Abstract

The invention discloses an electromagnetic interference signal reproducing system and a reproducing method for unmanned aerial vehicle data link testing, belonging to the field of anti-interference of unmanned aerial vehicle data link. The reproduction system of the present invention includes an arbitrary waveform generator, a numerically controlled attenuator, an omnidirectional antenna, a spectrum analyzer and two personal computers, wherein one computer is used as a testing machine to send interference instructions, and the other is used as an interference reproduction machine Receive interference commands and generate specific interference waveforms and attenuation data. The reproduction method first selects the control mode in the interference reproduction machine, and generates an interference waveform according to the interference parameters within the allowable range; then the numerical control attenuator performs power attenuation on the actual waveform according to the attenuation parameters, and reproduces the waveform; finally, the interference is reproduced The machine sends a report to the test machine. The invention adopts two complementary working modes, which are suitable for different control requirements; realizes the dynamic reproduction of the electromagnetic interference environment; and can generate interference waveforms with arbitrary parameters and shapes.

Description

technical field [0001] The invention belongs to the field of anti-interference of unmanned aerial vehicle data link, and specifically refers to an electromagnetic interference signal reproduction system for unmanned aerial vehicle data link test. Background technique [0002] With the continuous development of electronic information technology, the electromagnetic environment in which the UAV data link is located is becoming more and more complex, full of various electromagnetic signals, mainly including communication signals, navigation signals, radar signals, and malicious interference signals from the enemy. According to the source of electromagnetic signals, the electromagnetic environment of UAV data link is divided into two types: natural electromagnetic environment and artificial electromagnetic environment. The man-made electromagnetic environment can be divided into countermeasure signal electromagnetic environment and non-countermeasure signal electromagnetic envir...

AI Technical Summary

Problems solved by technology

This method is costly, time consuming and presents significant risk to UAV platforms

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