SAR脉内分段排序和脉间间歇采样复合转发干扰  

A composite repeating jamming method for SAR based on in-pulse separation and reordering and interpulse intermittent sampling

作　　者：张静克[1] 代大海[1] 邢世其[1] 肖顺平[1] 王雪松[1] 

机构地区：[1]国防科学技术大学电子信息系统复杂电磁环境效应国家重点实验室,湖南长沙410073

出　　处：《电波科学学报》2015年第2期224-231,共8页Chinese Journal of Radio Science

摘　　要：提出一种新的合成孔径雷达(Synthetic Aperture Radar,SAR)复合转发干扰.该方法巧妙结合了脉内分段排序和脉间间歇采样转发两种干扰技术,其干扰实施流程为:干扰机对截获的SAR信号全脉冲接收存储,并对其进行分段以及适当的排序,在接下来的一个或多个脉冲重复周期内转发给雷达形成干扰.基于SAR信号模型研究了该干扰对SAR的干扰原理,进一步分析了干扰效果与关键干扰参数之间的关系,并利用仿真进行了验证.研究表明,根据参数设置的不同,该方法能够在SAR图像中形成二维欺骗干扰或压制干扰.A novel composite repeating jamming method for synthetic aperture radar(SAR)is proposed,which combines in-pulse separation and reordering with interpulse intermittent sampling subtly.The basic idea is as:firstly storing the SAR pulse completely,then separating,reordering the stored signal,finally transmitting the stored signal in the next one or several pulse repetition periods to the radar.Based on the signal models of SAR,principles of the jamming are derived.Then,the relationship between key jamming parameters and the effect is analyzed.Furthermore,the conclusion is verified via simulation.The result shows that the jamming can produce two-dimensional deceptive jamming or suppression jamming according to well configured the key jamming parameters.

关 键 词：合成孔径雷达 脉内分段排序 脉间间歇采样 二维欺骗干扰 压制干扰 

分 类 号：TN972[电子电信—信号与信息处理]