Keywords Synthetic Aperture Radar;De-noising for speckle;target detection;Edge extraction;,,,,Classification;wavelet transform;adaptive Wiener filter;Robust estimate;Constant false alarm rate;

• 合成孔径雷达;相干斑抑制;目标检测;边缘提取;分类;小波变换;自适应维纳滤波;鲁棒估计;恒虚警;