When conducting distance towed interference on pulse compression radar,the interference signal generated by the electronic countermeasures system itself has serious time-frequency domain aliasing with the reconnaissance signal that needs to be received,which makes it difficult for the system to continuously detect the detection signal of the radar and generate time-delay interference signals based on the radar detection signal.In response to this issue,the article proposes a digital domain self interference cancellation algorithm based on normalized least mean square(NLMS)to avoid the influence of interference signals on reconnaissance signals.The simulation results show that using this algorithm,the system can reconnoitre the detection signal of the radar while relea-sing interference,and based on this detection signal,false target signals for distance towing are gen-erated.
关键词
同时收发系统/自适应滤波/数字自干扰对消
Key words
simultaneous transmission and reception system/adaptive filtering/digital self interfer-ence cancellation
维普
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