一种改进的多通道干涉SAR/GMTI方案  

AN IMPROVED SAR/GMTI SCHEME USING MULTIPLE-PORT INTERFEROMETER

作　　者：叶少华[1] 朱兆达[1] 朱岱寅[1] 

机构地区：[1]南京航空航天大学电子工程系,南京210016

出　　处：《电子与信息学报》2002年第12期1955-1959,共5页Journal of Electronics & Information Technology

基　　金：航空科学基金(00F52057)

摘　　要：该文分析了多通道干涉SAR/GMTI的工作原理,讨论了系统中不同误差源对主杂波抑制的影响,在此基础上,对多通道干涉SAR/GMTI方案中最关键的对消因子提出了改进,仿真结果表明:经改进的多通道干涉SAR/GMTI方案对各种误差的敏感程度显著下降,具有较好的鲁棒性,因而改进后的方案更适合于工程实施。The principle of multiple-port interferometer SAR/GMTI is analyzed and the influence of various system errors on the capability for suppressing the main lobe clutter is also discussed in this paper, then the modification on the most critical weighting factor of this multiple-port interferometer is proposed. The theoretical analysis and simulation results show that this improved multiple-port interferometer SAR/GMTI scheme is insensitive to system errors or noise and is very robust, therefore it is suitable to be realized in the engineering.

关 键 词：SAR GMTI 合成孔径雷达 地面慢动目标指标 多通道干涉仪 杂波对消 

分 类 号：TN958[电子电信—信号与信息处理]