Model-based Target Decomposition with Mode Compact Polarimetric SAR Interferometry Data
Guo Sheng-long①②③ Li Yang①②③ Yang Shi-lin①②③ Zhou Yong-sheng④ Hong Wen①②
①(Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China) ②(Science and Technology on Microwave Imaging Laboratory, Beijing 100190, China) ③(University of Chinese Academy of Sciences, Beijing 100190, China) ④(Academy of Opto-Electronics, Chinese Academy of Sciences, Beijing 100094, China)
Abstract：The model-based target decomposition is one of the most fundamental applications to the polarimetry SAR. However, it can only retrieve the power information of three scattering mechanisms with polarimetric SAR data. By applying this model-based decomposition technique to the mode Compact Polarimetric SAR Interferometry (C-PolInSAR) data and decomposing the cross correlation matrix, this study can obtain the power contributions of three scattering mechanisms as well as their scattering phase center. Firstly, this study introduces the models corresponding to the three scattering mechanisms under mode C-PolInSAR observation. Then, the targets can be decomposed by the numerical method, and finally both power contributions and scattering center of mechanisms are retrieved. The simulation data validate the effectiveness of the decomposition algorithm and the impacts of different wave-band and different ground parameters on the decomposition results are analyzed.
2015, Vol. 37 
