中文摘要：

立足于干扰机天线收发分时体制，研究了方位向间歇采样转发干扰方法。其核心思想是对SAR发射的脉冲串信号进行间歇采样和存储，再经一定处理后恢复为模拟信号在下一个或数个脉冲重复周期转发出去形成干扰，然后利用SAR方位向匹配滤波特性，就可以形成方位向多假目标欺骗的效果，避开了高速采样和同时收发高度隔离的难题。理论分析了方位向间歇采样转发干扰的原理和干扰效果，指出了间歇采样周期、占空比及干扰组数等关键参数对干扰效果的影响，通过仿真实验进行了验证。研究结果表明，方位向间歇采样转发干扰是种有效的、易于工程实现的干扰样式。

英文摘要：

Abstract： Based on time sharing processing of jammer＇ s receiver and transmitter,we have studied the azimuth intermittent sampiing repeater jamming method. The basic idea of this method is as：firstly sampling, storing and modulating the transmitted pulse of SAR ; then converting the modulated signal into analog signals ; afterward transmitting them in the next one or several pulse repetition periods. By matched filtering in the azimuth direction, this jamming method can produce multiple false targets in the azimuth direction, as well as avoid the difficulties of high-speed sampling and well antenna isolation of receiver and transmitter. The jamming principle and jamming performance are theoretically analyzed. And the influence of intermittent sampling period, duty ratio and jamming group number on the jamming performance is investigated, which is well verified by simulation experiments. The results indicate that the azimuth intermittent sampling repeater jamming method is useful and easily realized in engineering practice.