一种改进的机载合成孔径雷达CSI杂波抑制方法  

A Improved Air—born SAR Clutter-Suppression Method Based on CSI

作　　者：邓海涛[1] 张长耀[1] 

机构地区：[1]中国电子科技集团公司第38所成像中心,合肥230031

出　　处：《信号处理》2009年第3期478-481,共4页Journal of Signal Processing

摘　　要：CSI(杂波抑制干涉)是一种类似于DPCA的空-时自适应技术,其优点是不受DPCA条件限制。本文分析了传统CSI的处理原理及不足之处,接着以双通道GMTI为例,给出了一种改进CSI的数学分析和处理方法。最后通过仿真数据和实际双通道数据的通道对消结果,证明改进后的算法可有效提高杂波抑制性能。CSI is a STAP technology like Displaced Phase Center Antenna（DPCA）. Its virtue is that it couldn＇ t be confined by DPCA conditions. This paper briefly analyses the principle and shortage of conventional CSI firstly. Then making dual-channel GMTI as an example, puts forward an improved CSI processing method. Lastly, we compare channel-cancellation result of simulated date and real dual-channel echo data,The results proved this improved CSI method is reliable and effectual.

关 键 词：杂波抑制 DPCA 空-时自适应处理 通道对消 

分 类 号：TN959.73[电子电信—信号与信息处理]