An improved three-component model-based decomposition for polarimetric SAR data

An improved three-component model-based scattering decomposition method by implementing the new volume scattering model for the polarimetric SAR image is presented in this paper. The modified volume model which is suit for the target decomposition of PolSAR data is used in the proposed method aiming to reduce the emergence of negative powers in the Freeman decomposition. The experimental results of NASA/JPL AIRSAR L-band and CSA Radarsat-2 C-band data on San Francisco illustrate that the proposed method can effectively reduce the number of negative powers, which demonstrate the effectiveness of the proposed method on PolSAR data.