Inversion of surface parameters from polarimetric SAR

被引：368

作者：

Hajnsek, I ^{[1
]}

Pottier, E

Cloude, SR

机构：

[1] German Aerosp Ctr, Microwaves & Radar Inst, Dept SAR Technol, D-82230 Wessling, Germany

[2] Univ Rennes 1, Inst Elect & Telecommun Rennes, F-35042 Rennes, France

[3] AEL Consultants, Cupar KY15 5YQ, Fife, Scotland

来源：

IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING | 2003年 / 41卷 / 04期

关键词：

inversion; soil moisture; surface parameters; surface roughness; synthetic aperture radar (SAR) polarimetry;

D O I：

10.1109/TGRS.2003.810702

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

This paper proposes a new model for the inversion of surface. roughness and soil moisture from polarimetric synthetic aperture radar (SAR) data, based on the eigenvalues and eigenvectors of the polarimetric coherency matrix. It demonstrates how three polarimetric parameters, namely the scattering entropy (H), the scattering anisotropy (A), and the alpha angle (alpha) may be used in order to decouple surface roughness from moisture content estimation offering the possibility of a straightforward,inversion of these two surface parameters. The potential of the proposed inversion algorithm is investigated using fully polarimetric laboratory measurements as well as airborne L-band SAR data and ground, measurements from two different test sites in Germany, the Elbe-Auen site and the Weiherbach site.

引用

页码：727 / 744

页数：18

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