A novel approach of speckle noise reduction is put forward according to the distributions of signal and noise under different scales of Synthetic Aperture Radar (SAR) images based on Wavelet Packet Transform (WPT).

• 根据信号和噪声的小波系数在不同分解尺度上的分布；提出应用小波包变换(WPT)消除合成孔径雷达(SAR)图像斑点噪声的新方法.