Coherent Decomposition of Fully Polarimetric FM-CW Radar Data

Jun NAKAMURA  Kazuyasu AOYAMA  Muneyuki IKARASHI  Yoshio YAMAGUCHI  Hiroyoshi YAMADA  

IEICE TRANSACTIONS on Communications   Vol.E91-B   No.7   pp.2374-2379
Publication Date: 2008/07/01
Online ISSN: 1745-1345
DOI: 10.1093/ietcom/e91-b.7.2374
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Sensing
coherent decomposition,  radar polarimetry,  POLSAR,  FM-CW radar,  

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This paper presents a coherent decomposition scheme for polarimetric SAR data. Coherent decomposition means the decomposition is applied to a single or a few scattering matrix data. Based on the scattering matrix acquired with an FM-CW polarimetric SAR system, we have devised a simple decomposition technique using the coherency matrix for the purpose of identifying scatterers. This paper presents the decomposition technique and some decomposition results obtained by a fully polarimetric FM-CW radar. It is shown the scattering mechanisms are well recovered and the orientation angles of wire scatterer are precisely measured.