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Polarimetric Characteristics of Forest at Coherent Decomposition in Polarimetric SAR Interferometry

Koichi SATO, Hiroyoshi YAMADA, Yoshio YAMAGUCHI

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Summary :

In this paper, we examine the polarimetric characteristics and the potential of the coherent decomposition in polarimetric synthetic aperture radar (SAR) interferometry. Coherent scattering decomposition based on the coherence optimization can separate effective phase center of different scattering mechanisms and can be used to generate canopy digital elevation model (DEM). This decomposition is applied to a simplified stochastic scattering model such as forest canopy. However, since the polarimetric characteristics are not well understood when the decomposition is carried out, we investigate its characteristics and potential using polarimetric entropy-alpha and three-component scattering matrix decomposition. The results show that the first and third components correspond to the lower and upper layer, respectively, in ideal case. In this investigation, SIR-C/X-SAR data of the Tien Shan flight-pass are used.

Publication
IEICE TRANSACTIONS on Electronics Vol.E84-C No.12 pp.1829-1834
Publication Date
2001/12/01
Publicized
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DOI
Type of Manuscript
Special Section PAPER (Special Issue on New Technologies in Signal Processing for Electromagnetic-wave Sensing and Imaging)
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