Synthetic aperture radar (SAR) is affected by speckle noise seriously.It is difficult to use the classic means for optical images when we perform SAR images registration and change detection.

• 摘要合成孔径雷达(SAR)图像由于受相干斑噪声的影响，在对其进行配准及变化检测时，经典的适于光学图像的方法效果不佳。