间歇采样转发干扰信号分析

间歇采样转发干扰是一种新型的相干干扰方法，可以使线性调频脉压雷达受到相干假目标串的干扰。文章从时域和频域分别对这种干扰样式产生的干扰信号进行计算分析，从而揭示了这种新型干扰样式可以对线性调频脉压雷达产生相干假目标串干扰的本质原因，即干扰信号是相干脉间步进跳频、脉内线性调频的脉冲串。

Analysis on Interrupted-sampling Repeater Jamming Signal

The interrupted sampling repeater jamming is a novel coherent jamming technique. The linear frequency modulated radar signal is sampled by the jammer, and the matched filter of a pulse compression radar is fed by the sampled signal,then the output involving a train of false targets can be obtained. In this paper, the time domain characteristics and the frequency domain characteristics of interrupted sampling signals are analyzed, and the feature of the jamming signal is given out, a train of jamming pulses with inter-pulses coherent stepped frequency and intra-pulse linear frequency modulated signal, so the physical explanation of jamming effect to chirp pulse compression radar is analyzed in theory.