雷达诱饵干扰对单脉冲雷达测角输出随机性的影响  

On randomicity of indicated angle of monopluse radar jammed by radar decoy

作　　者：刘庆云[1] 黄海涛[1] 杨新国[1] 

机构地区：[1]上海航天技术研究院802所,上海200090

出　　处：《航天电子对抗》2017年第2期26-29,共4页Aerospace Electronic Warfare

摘　　要：首先对有源雷达诱饵干扰环境下雷达导引头所接收信号进行了数学建模,然后采用数字仿真的方法分析了两干扰点源的相对信号幅度、相位差及多普勒频差对被干扰雷达导引头诱偏方向的影响。初步分析结果表明:雷达诱饵干扰将导致雷达导引头的测角输出具有随机性。其随机性和干扰信号与目标回波间的相对信号幅度、相位差及多普勒频差均有关。由于雷达诱饵位于雷达导引头被诱偏的角度范围内,雷达诱饵被命中的概率应当是存在的。A mathematical model of the received sum and difference monopulse radar signals jammed by radar active decoy is presents. Then, the effect of relative amplitude, phase difference and Doppler frequency difference between the jamming signal and target echo on the randomicity of indicated angle of the victimized monopluse radar by simulation are analyzed. Preliminary results show that the indicated angle of the monopluse radar is random because of radar active decoy jamming, and the relative amplityde, phase difference and Doppler frequency difference between the jamming signal and target echo have some effect on the randomicity of the in dicated angle. Preliminary results also show that since the direction of radar active decoy is always within the range of the indicated angle, it is possible that a radar active decoy is hitted by a missile with monpulse radar seeker.

关 键 词：雷达导引头 有源雷达诱饵 多普勒频差 欺骗干扰 

分 类 号：TN974[电子电信—信号与信息处理]