POLSAR Image Analysis of Wetlands Using Fully Polarimetric Quad-SAR Data

Conference: EUSAR 2008 - 7th European Conference on Synthetic Aperture Radar
06/02/2008 - 06/05/2008 at Friedrichshafen, Germany

Proceedings: EUSAR 2008

Pages: 4Language: englishTyp: PDF

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Yamaguchi, Yoshio; Yamada, Hiroyoshi; Yajima, Yuki; Sato, Ryoichi; Boerner, Wolfgang-Marti (NU-IE, Ikarashi 2 nocho 8050, NIIGATA-Shi, 950-2128, Japan)
Boerner, Wolfgang-Marti (UIC-ECE/CSN, 900 W Taylor St, SEL-4210, CHICAGO, IL/USA)

A modification of four-component scattering power decomposition is proposed for polarimetric SAR image analysis based on the coherency matrix. The four-component consists of surface scattering, double bounce scattering, volume scattering, and helix scattering power. Although this decomposition scheme has been successfully applied to the Land X-band polarimetric SAR data, there exists a drawback that negative power appears in a few pixels in the image analysis. This paper modifies the decomposition scheme and shows its application to monitor seasonal change of wet a land area, lake “SAKATA”, Niigata, Japan. It is shown that the four-component powers derived by the modified decomposition scheme represent typical seasonal feature of vegetation near by the lake.