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Study on Matched Jamming Against Linear FM Pulse Compression Radar

Bian Xiao-lin

Abstract

Pulse compression radar has a high pulse compression ratio(gain) for target signals,but its compression ratio is low for not matched jamming signals.For the sake of increasing the input power of jamming signal,a linear FM signal is proposed as jamming signal,which simulates the target signals of compression radar(namely matched jamming).The results from theoretically analyzing and computer simulation are presented that the matched jamming can highly increase the compression ratio of it after passing the filter.But the input power can decrease when the aimming frequency deviation is increase.

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Key concepts: Pulse compression, Jamming, Matched filter, Radar, Pulse repetition frequency, SIGNAL (programming language), Pulse-Doppler radar, Compression (physics)