星载多发多收SAR成像和抗欺骗干扰研究  

Research on Spaceborne MIMO-SAR Imaging and Anti-Deceptive Jamming

作　　者：彭发祥[1] 李宏伟[1] 蔡斌[1] 邓冬虎[1] 

机构地区：[1]空军工程大学电讯工程学院,陕西西安710077

出　　处：《现代防御技术》2012年第2期143-149,154,共8页Modern Defence Technology

摘　　要：星载多发多收合成孔径雷达(MIMO-SAR)可以解决方位向高分辨率和大测绘带的矛盾;同时,混沌二相编码(CBPC)信号具有类似随机信号的特点以及良好的自相关和互相关特性;两者都具有良好的应用前景。将CBPC波形应用到MIMO-SAR系统中,在实现高分辨大测绘带成像的基础上可进一步降低雷达信号被敌方分析截获的概率,提高雷达系统的抗干扰性能。仿真实验验证了此方法在抗数字储频式欺骗干扰中的有效性。Spaceborne multiple-input multiple-output synthetic aperture radar （MIMO-SAR） can resolve the conflict between high azimuth resolution and wide swath. And chaotic binary-phase coded （CB- PC） signal has almost the same characteristic as stochastic signal and has good autocorrelation property. They both have good prospects in future. CBPC waveform is adopted in the emitting signal of MIMOSAR, which can not only achieve wide swath and high resolution but also improve the antijamming ability of radar system, and reduce the probability of being intercepted. At last, the validity of the method is verified by simulation examples.

关 键 词：合成孔径雷达 多发多收 混沌二相编码 大测绘带 欺骗性干扰 

分 类 号：TN958[电子电信—信号与信息处理] TN959.74[电子电信—信息与通信工程]