The local statistical properties of synthetic aperture radar (SAR) image are used in many speckle filtering methods, and a boxcar filter must he used.

• 摘要许多合成孔径雷达(SAR)图像相干斑噪声滤除方法中都需要用到SAR图像的局部统计特性，这就不可避免地要用到滑动局部窗。