关键词: 极化合成孔径雷达, 极化滤波, 散射特性, 自适应窗口

Abstract:

Most of the speckle filtering methods can not preserve the scattering characteristics of  the PolSAR image because of their being based on the statistic model. To solve this problem, here we propose a speckle filtering method to preserve polarimetric scattering characteristics. Firstly, by extracting scattering characteristics from the PolSAR image, we mark different sorts with different markers; then, referring to the different markers, an adaptive slipping window is used to compute the filtering parameter; finally, measured data are applied in the filtering experiment using the filtering parameter. From the analysis, we have proved the effectiveness of our method.

Key words: polarimetric SAR (PolSAR), polarimetric speckle filtering, scattering characteristic, adaptive window