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-5dB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 tradi-tional 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 do-main 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 -5dB, and the target detection probabili-ty is greater than 90%.
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