关键词: 全极化雷达, 影像处理, Freeman-Durden分解, 含水量信息

Abstract: Information in quad-polarization SAR images can be best described by components of target decomposition results.Freeman-Durden decomposition is based on model of ground when vegetation represents，thus it is capable for soil water content information extraction.It can also solve problems always happened when employing radar remote sensing images for such applications caused by vegetation.A first try of using Freeman-Durden decomposition to extract water content information in amount is presented，and an experience model connecting the double bounce component of Freeman-Durden decomposition and water content value is proposed based on analysis of experiments from RADARSAT-2 quad-polarization SAR images.This model is verified by experiments.The model and its possible further developments are discussed.

Key words: quad-polarized SAR, image processing, Freeman-Durden decomposition, water content information