摘要
通过研究移频干扰技术对脉冲压缩雷达的作用,针对移频干扰存在的距离失配问题,建立了雷达处理干扰回波信号模型。分析了几种典型干扰模式下干扰信号相对真实目标回波的失配原因,推导了匹配滤波处理后干扰假目标相对真实目标的时间差。设计了线性调频移频干扰的时域补偿方法,实现了对真实目标的完全压制干扰,最后通过实验仿真验证了该方法的有效性。
According to the study about the effect of shift-frequency jamming technology to the pulse compression radar, and aiming at the distance mismatch problem of this technology, the interference echoprocessing model of the radar is established. The mismatch causes of interference signals relative to real target echoes in several typical jamming modes are analyzed, and the reach time difference of jamming false targets to real targets after the matched filter is derived. A compensation method for chirped frequency shift in time domain is designed, which has achieved barrage jamming to the real targets completely. Finally, the results of experimental simulations verify the effectiveness of this method.
作者
李金炳
史小伟
陈俊霖
Li Jinbing;Shi Xiaowei;Chen Junlin(Science and Technology on Electronic Information Control Laboratory,Chengdu 610036,Sichuan,China)
出处
《航天电子对抗》
2019年第1期31-35,共5页
Aerospace Electronic Warfare
关键词
脉冲压缩雷达
移频干扰
时域补偿
压制干扰
LFM radar
shift frequency jamming
time domain compensation
barrage jamming
