Summary
International Symposium on Antennas and Propagation
2012
Session Number:1C4
Session:
Number:1C4-3
On Exact Model-based Scattering Decomposition of Polarimetric SAR Data
Yi Cui, Yoshio Yamaguchi, Jian Yang,
pp.-
Publication Date:2012/10/29
Online ISSN:2188-5079
Summary:
In this paper, we demonstrate that the coherency matrix of the polarimetric SAR (PolSAR) data can be exactly decomposed into three components respectively representing surface scattering, double-bounce scattering, and volume scattering. In particular, we show that solving for the expansion coefficients as well as the expansion matrices in fact amounts to a generalized eigenvalue problem. This equivalence guarantees that 1) positive powers are always maintained during the decomposition, and 2) the three-component expansion perfectly matches the measured data.