173 Wavelet-based Technology of Reduced Coherent Speckle for SAR Image

Abstract

This paper studies Synthetic Aperture Radar (SAR) images with the wavelets transform of lifting scheme, presents a new denoising method of wavelets analytic to reduce the coherent speckle noise . A lot of experiments approve that this new method not only suppresses the speckle noise effectively , but also preserves as many target characteristics of original images as possible . It shows that this denoising method offers a very attractive alternative to suppress the coherent speckle noise of the SAR images .