Ultrashort wave radio interference protection device

Abstract

The invention relates to the technical field of anti-jamming of wireless communication equipment, and discloses an ultrashort-wave radio interference protection device, which includes 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. The processing module is provided with a non-cooperative interference cancellation algorithm module, a signal intelligent perception algorithm module and a display control algorithm module. The ultra-short wave radio interference protection device of the present invention utilizes the differences in transmission channels and waveform characteristics between communication signals and interference, configures parameters of the cancellation algorithm through signal perception and feedback signal quality, and forms signal perception, interference cancellation and signal quality evaluation feedback. Loopback, adaptive separation and cancellation of non-cooperative interference signals.

Description

Technical field [0001] Technical Field The present invention relates to a wireless communication apparatus interference, particularly to an FM radio interference guard. Background technique [0002] The main purpose is communication interference against other malicious electronic interference, to protect one's own communication link to transmit information efficiently, is one of the key military technology for wireless communications; With the rapid development of mobile Internet, users of wireless communication capacity, speed and bandwidth proposed a higher demand, an important way multiple access interference with the wireless communications channel and a variety of human interference suppression becomes expand the communication capacity. [0003] Wireless communication is an important means of military communication, complex electromagnetic environment and human disturbance are malicious huge challenge for wireless communication in an increasingly complex electromagnetic envi...

AI Technical Summary

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), ultrashort wave electromagnetic interference cancellation device (application number 201010198092.0), co-site coupling interference cancellation device (application number 201518001240.9), adaptive broadband interference The cancellation device (application number 201320001505.0) belongs to the co-site interference cancellation scheme with local reference signal, which cannot solve the problem of non-cooperative interference signal cancellation under the condition of no local reference signal; the non-cooperative interference suppression device of satellite ground station Its control method (application number CN202010230631.8), microwave co-frequency interference protection device (application number CN201811155746.4) belongs to the non-cooperative interference cancellation scheme under the condition that the communication signal angle of arrival direction is clear, and cannot solve the problem of no angle of arrival signal The non-cooperative interference cancellation problem under

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