MAP滤波器是一种常用的抑制SAR图像相干斑噪声的滤波器。针对SAR图像的特点提出了一种自适应窗口MAP算法（AWMAP），它根据窗内像素点的统计特征自适应调节窗口大小来增强噪声抑制性能。实际SAR图像处理表明，AWMAP算法在抑制噪声斑点和保留图像细节方面较原方法都有较大的改进和提高。

MAP filter is a filter which is often used to reduce the speckle of SAR images. This paper applies a method of adaptive window to improve MAP filter according to the characteristics of SAR images. It can adjust the size of filtering window adaptively according to the statistics of pixels within the window. In actual experiment, this improved method proved to have good performance in reducing speckle and preserving details at the same time.

TN951

总装备部十五预研项目