多径效应下雷达抗有源压制干扰研究  

Research on radar anti-active suppression jamming under multipath effect

作　　者：孙旌 刘冬利[1] 侯建强 邵晓方[1] SUN Jing;LIU Dongli;HOU Jianqiang;SHAO Xiaofang(Department of Information System,Dalian Naval Academy,Dalian 116018,China)

机构地区：[1]海军大连舰艇学院信息系统系,辽宁大连116018

出　　处：《空军预警学院学报》2021年第3期195-201,共7页Journal of Air Force Early Warning Academy

摘　　要：为研究多径效应对雷达抗有源压制干扰的性能,首先基于无干扰条件下多径效应对雷达探测性能的影响,定量分析多径效应影响下压制干扰对目标回波和干扰信号的影响;然后研究多径效应对频率分集和旁瓣匿影两种抗干扰措施的影响;最后进行了对应仿真.仿真结果表明,在有源压制干扰下,多径效应会扩大雷达干扰压制区,影响干扰信号强度以及雷达的抗干扰性能,造成上述两种措施抗干扰性能的不稳定.In order to study the performance of the multipath effect on radar's anti-active suppression jam-ming,based on the influence of the multipath effect on radar detection performance under the condition of no in-terference,this paper first quantitatively analyzes the influence of suppression jamming on target echo and jam-ming signal under the influence of multipath effect,and then studies the influence of multipath effect on the two kinds of anti-jamming measures of frequency diversity and sidelobe blanking.Finally,the paper makes the corre-sponding simulation.The simulation results show that under the active suppression jamming,multipath effect will expand the radar jamming suppression area,and affect the jamming signal strength and the radar’s anti-jamming performance,thus causing the anti-jamming performance of the above two measures to be unstable.

关 键 词：雷达抗干扰 多径效应 方向图传播因子 有源压制干扰 频率分集 旁瓣匿影 

分 类 号：TN957[电子电信—信号与信息处理] TN973[电子电信—信息与通信工程]