雷达抗DRFM间歇采样延时转发干扰的一种方法  

A method of radar against DRFM intermittent sampling time⁃delay repeater jamming

作　　者：陈晗 陈方予 耿强 程磊 邓涛[1] 卢瀚智 李阳 Chen Han;Chen Fangyu;Geng Qiang;Cheng Lei;Deng Tao;Lu Hanzhi;Li Yang(Beijing Huahang Radio Measurement Institute,Beijing 100013,China;Beijing System Design Institute of Mechanical-Electrical Engineering,Beijing 100854,China)

机构地区：[1]北京华航无线电测量研究所,北京100013 [2]北京机电工程总体设计部,北京100854

出　　处：《航天电子对抗》2020年第3期49-53,共5页Aerospace Electronic Warfare

摘　　要：介绍了雷达干扰机使用DRFM间歇采样延时转发干扰的用途,和产生间歇采样延时转发干扰信号的方法,以及间歇采样延时转发干扰信号的特征,分析了间歇采样延时转发干扰信号对雷达目标检测的影响,通过分析雷达工作在宽、窄带工作方式下的接收信号信噪比,说明了雷达使用宽、窄带工作方式相结合的方法检测间歇采样延时转发干扰信号的理论可行性,提出了雷达使用宽、窄带工作结合的方法抗DRFM间歇采样延时转发干扰,最后指出了这种方法实际应用中可能存在的问题。The use of radar jammer using DRFM(digital radio frequency memory)intermittent sampling time-delay repeater jamming(ISRP)is introduced.The method of generating intermittent sampling time-delay repeater jamming signal and its characters are described.The effects of intermittent sampling time-delay repeater jamming signal interfere radar detecting object are analyzed.By analyzing the SNR while radar working in broad⁃band mode and narrowband mode,narrates it is feasible in theory for radar to recognize intermittent sampling time-delay repeater jamming signal by combining broadband detection mode and narrowband detection mode.A technique that radar using broadband detection and narrowband detection combining mode is put forward to restrain intermittent sampling time-delay repeater jamming.At last,it is indicated that there may be some problem to be solved in practice.

关 键 词：雷达 检测 间歇采样延时转发干扰 

分 类 号：TN973.3[电子电信—信号与信息处理] TN974[电子电信—信息与通信工程]