Ultra-short wave radio station interference protection device

Abstract

The invention relates to the technical field of interference resistance of wireless communication equipment, and discloses an ultra-short wave radio station interference protection device which comprises an interference sampling antenna array, a radio frequency switch module, a radio frequency signal conditioning module, an adjustable radio frequency agility module and a digital signal processing module. A non-cooperative interference cancellation algorithm module, a signal intelligent sensing algorithm module and a display control algorithm module are arranged in the digital signal processing module. According to the interference protection device for an ultra-short wave radio station, the difference in the aspects of transmission channels and waveform characteristics of communication signals and interference is utilized, cancellation algorithm parameters are configured through signal perception andsignal quality of feedback, loops of signal perception, interference cancellation and signal quality evaluation feedback are formed, and non-cooperative interference signals are adaptively separated and cancelled.

Description

technical field [0001] The invention relates to the technical field of anti-interference of wireless communication equipment, in particular to an ultrashort-wave radio interference protection device. Background technique [0002] The main purpose of anti-jamming communication is to resist the malicious electronic interference of the other party and protect the communication link of one's own party to effectively transmit information. It is one of the key technologies of military wireless communication; In order to meet higher requirements, suppressing multiple access interference and various man-made interferences in the same channel of wireless communication has become an important way to expand communication capacity. [0003] Wireless communication is an important means of military communication. The complex electromagnetic environment and malicious man-made interference have brought great challenges to wireless communication. In an increasingly complex electromagnetic en...

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Problems solved by technology

Analyzing the existing domestic and foreign airspace anti-jamming methods, one technical route is to use the angle-of-arrival direction information of the signal and use the angle-constrained adaptive beamforming, but there is a huge gap in the accurate estimation of the signal angle-of-arrival direction for short-wave and ultra-short-wave communications. Difficulty, especially under multi-path channel conditions; on the other hand, combined with the design of communication signal waveforms, corresponding reference signals are generated locally to achieve interference cancellation, but redesigning communication signal waveforms requires comprehensive changes to communication equipment, which is tantamount to designing new Communication equipment, there are compatibility and adaptation problems with existing communication equipment

[0004] Chinese patent radio frequency adaptive interference cancellation device and its debugging method (application number CN201811155735.6), ultras

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