摘要
当雷达波束主瓣内同时存在空间角度不同的目标与有源干扰时,目标回波在时域和频域上被具有一定带宽的干扰所淹没,单脉冲雷达无法有效检测目标,测角系统输出是干扰信号和回波信号叠加后畸变的波前。针对干扰条件下的雷达目标检测问题,研究单脉冲雷达双差通道信号的提取和处理算法,提出主瓣干扰下基于双差通道的测角技术,提升雷达的复杂电磁环境适应能力。
When the target and the active jamming with different space angles exit simultaneously in the radar beam main lobe,the target echoes are overwhelmed by the interference with certain bandwidth in time domain and frequency domain,so the Monopulse radar cannot effectively detect the target,and the output of angle measurement system is the wavefront of the distortion after the superposition of the jamming signal and the echo signal.In view of target detection of radar under jamming conditions,this paper studies the signal extraction and processing algorithm of Monopulse radar double-delta channel,and proposes the angle measurement technology based on double-delta channel under the main lobe interferenceso as to improve the adaptability of radar in complex electromagnetic environment.
出处
《空天防御》
2018年第1期25-30,共6页
Air & Space Defense
关键词
数字阵列
双差通道
主瓣抗干扰
digital array
double-delta channel
anti mainlobe-interference
