Polarimetric SAR Decomposition Method Based on Modified Rotational Dihedral Model

Polarimetric decomposition is an effective way to analyze the scattering mechanism of targets in polarimetric synthetic aperture radar (PolSAR) images. However, analysis urban areas frequently a challenge. Most methods use rotated dihedral derived via rotation matrix model double-bounce buildings. according electromagnetic theory, existing not accurate, especially when orientation angle large. Therefore, contribution with large angles will be difficult extract. To address this problem, based on physical optics (PO) and geometric (GO), interaction process waves rotational analyzed, then modified (MRDM) proposed for accurate representation mechanism. Accordingly, MRDM introduced five-component method (MRDM-5SD) components area. The validity MRDM-5SD demonstrated using several data sets. experimental results show that power contributions increase by MRDM-5SD. can provide support feature extraction target detection areas.