基于双通道DPCA技术的前视SAR微动目标检测  

The Forward Looking Sar Micro-motion Targets Detection Methodbased on Dual-channel DPCA

作　　者：陈磊[1] 陈殿仁[1] CHEN Lei CHEN Dianren(School of Electronic and Information Engineering, Changchun University of Science and Technology, Changchun 130022)

机构地区：[1]长春理工大学电子信息工程学院,长春130022

出　　处：《长春理工大学学报（自然科学版）》2016年第6期40-43,共4页Journal of Changchun University of Science and Technology(Natural Science Edition)

摘　　要：针对将DPCA技术应用于前视SAR微动目标检测领域,首先分析了传统双通道SAR的DPCA对消原理,然后根据前视SAR的特性,提出基于天线收发同置的前视SAR双通道DPCA模式,研究前视微动目标回波经过DPCA对消后的信号幅相特性,确定微动目标所在的距离域,最后在MATLAB中对检测方法进行了仿真,仿真结果表明,当回波信噪比大于-5d B时,微动目标检测概率达到95%。It is aimed at the problem of forward-looking SAR micro-motion target detection in this paper. The traditional dual-channel SAR DPCA cancellation principle is analyzed and a dual-channel DPCA model of forward-looking SAR is proposed,the amplitude and phase characters of the signal after DPCA cancellation is studied,the distance domain of the micro-motion target is determined, then the micro-motion target detection is probability under different echo SNR with Monte-Carlo Operation,when the echo SNR is bigger than-5d B,and the target detection probability is greater than 90%.

关 键 词：前视 DPCA 微动目标 目标检测 双通道 

分 类 号：TN957[电子电信—信号与信息处理]