宽带成像雷达间歇采样转发干扰应用策略  

Application strategy for intermittent sampling repeater jamming to wideband imaging radar

作　　者：高磊 曾勇虎 汪连栋 王伟[2] Gao Lei;Zeng Yonghu;Wang Liandong;Wang Wei(State Key Laboratory of Complex Electromagnetic Environment Effects on Electronics and Information System,Luoyang 471003,China;College of Electronic Science,National University of Defense Technology,Changsha 410073,China)

机构地区：[1]电子信息系统复杂电磁环境效应国家重点实验室,河南洛阳471003 [2]国防科技大学电子科学学院,长沙410073

出　　处：《强激光与粒子束》2018年第5期90-95,共6页High Power Laser and Particle Beams

基　　金：国家自然科学基金项目(61571451)

摘　　要：间歇采样转发干扰是针对宽带成像雷达的一种新型干扰方式。根据间歇采样转发干扰的基本原理,对宽带成像雷达,按照常规应用策略,能够在高分辨距离像结果中叠加一串虚假散射点。结合成像处理过程可知,这一串虚假散射点在事实上提升了成像处理中包络对齐效果。针对间歇采样转发干扰常规应用策略导致的问题,以破坏包络对齐为目的,设计了一种新的间歇采样转发干扰应用策略:按照预设随机序列改变间歇采样周期,来实现转发干扰方式。通过仿真实验,验证了所提出的应用策略能够显著降低成像质量。Intermittent sampling repeater jamming is a new kind of jamming means to wideband imaging radar.According to the principle of intermittent sampling repeater jamming,under its common application strategy,the jamming can add a string of bogus scatters to high resolution range profile(HRRP)of wideband imaging radar.Combing with process of imaging,it is found that the string of bogus scatters improves the quality of envelope alignment in the process of imaging.In order to solve the problem caused by intermittent sampling repeater jamming under common strategy,a new application strategy for intermittent sampling repeater jamming is put forward,which aims to disturb envelope alignment.In the new application strategy,period of intermittent sampling is changed according to some predefined random sequence.Simulation is executed,and the result shows that the new application strategy can degrade imaging quality obviously.

关 键 词：间歇采样转发干扰 成像雷达 应用策略 包络对齐 

分 类 号：TN95[电子电信—信号与信息处理]