说明：  合成孔径雷达图像(SAR)基于相关模型的matlab去斑算法，程序中需确定等效视数和滤波窗口大小，然后就能得到平滑后的SAR图像
(synthetic aperture radar images (SAR) model based on the relevant removing blotches Matlab algorithms, procedures required to determine the equivalent number of looks and filter window size, and then we can smooth the SAR image)