Fundamental Polarimetric Scattering Analysis For Detecting Oriented Manmade Objects Using Polarimetric Correlation Coefficients

In this research, we conduct scattering analysis for a simplified manmade objects model and investigate the polarimetric scattering characteristics, as a fundamental study for accurately detecting oriented manmade area in polarimetric SAR (PolSAR) image. The Finite-Difference Time-Domain (FDTD) method is utilized here. The model used in the analysis is made of buildings parts (four dielectric rectangular parallelepipeds) and a ground part (a circular plate), to include multiple scattering contribution between buildings in this analysis. As the ground part, three different models showing three different surface conditions are considered: 1) dielectric ground model with flat surface, 2) conductor ground model with flat surface, and 3) dielectric ground model with rough surface. Characteristics of polarimetric correlation coefficient in HV and LR bases for the models are in detail investigated for squint angle variation.