对SAR⁃GMTI复杂间歇采样转发干扰  

Complex intermittent sampling repeater jamming against SAR⁃GMTI

作　　者：张静克 汪亚 戚宗锋 曾勇虎 汪连栋 Zhang Jingke;Wang Ya;Qi Zongfeng;Zeng Yonghu;Wang Liandong(State Key Laboratory of Complex Electromagnetic Environment Effects on Electronics and Information System,Luoyang 471000,Henan,China)

机构地区：[1]电子信息系统复杂电磁环境效应国家重点实验室,河南洛阳471000

出　　处：《航天电子对抗》2021年第4期29-33,43,共6页Aerospace Electronic Warfare

摘　　要：通过在脉间改变间歇采样转发干扰的采样周期及占空比,提出了复杂间歇采样转发干扰,该干扰能够在SAR和GMTI图像中形成多个沿距离向等间隔或非等间隔分布的方位向压制条带。条带的距离向间隔与间歇采样周期成反比,距离向宽度与间歇采样周期和占空比变化范围成正比。仿真证明了理论分析的正确性。By changing the sampling period and duty ratio between pulses,complex intermittent sampling repeater jamming is proposed,which can form multiple azimuthal suppression bands with or without equal spacing along the range in both SAR and GMTI images.The range interval of the suppression strip is inversely proportional to the sampling period,while the range width of the strip is proportional to the variation range of the sam‑pling period and duty circle.Simulation results show the correctness of the theoretical analysis.

关 键 词：合成孔径雷达 地面动目标指示 间歇采样 压制干扰 

分 类 号：TN972.1[电子电信—信号与信息处理]