基于四通道单脉冲比统计特性的诱饵干扰检测方法  

Detection of decoy jamming based on the statistical characteristics of the four-channel monopulse ratio

作　　者：王建路 戴幻尧 王雷钢 周波 Wang Jianlu;Dai Huanyao;Wang Leigang;Zhou Bo(Luoyang Electronic Equipment Testing Center,Luoyang 471003,Henan,China)

机构地区：[1]中国洛阳电子装备试验中心

出　　处：《航天电子对抗》2019年第6期5-9,共5页Aerospace Electronic Warfare

基　　金：国家自然科学基金(61701502,61801480)

摘　　要：拖曳式诱饵干扰通过与目标协同运动形成雷达波束内的两点源,造成雷达天线口径波前畸变诱偏雷达波束指向,实现真正意义的角度欺骗。拖曳式诱饵的存在性检测是雷达抗干扰的前提和基础。结合拖曳式诱饵的干扰特点,通过数学推导和仿真分析,研究了拖曳式诱饵存在与不存在时复单脉冲比虚部的差异,引入了单脉冲雷达的双差通道,提出了四通道双门限诱饵的存在性检测方法。仿真与实测结果表明,利用双门限复单脉冲比虚部能够正确检测到诱饵的存在,为拖曳式诱饵的存在性检测提供了一种简单而有效的方法。The towed decoy jamming forms the two points in the radar beam through the cooperative movement with the target,which causes wavefront distortion and achieves angle deception jamming.Detection of towed radar decoy(TRD)is the precondition and foundation to counter TRD.By mathematical model derivation and simulation,the difference of the imaginary part of complex monopulse ratio within TRD is analyzed when it exists or does not exist.Deta-deta channel of monopulse radar is introduced.A new detection method using four channel and two threshold is proposed.The simulation and test result show the presented detection method can detect the TRD correctly and provide an efficient and simple method to the detection of TRD.

关 键 词：诱饵干扰 单脉冲比 诱饵检测 

分 类 号：TN973.1[电子电信—信号与信息处理]