General polarimetric model-based decomposition for coherency matrix

Si Wei Chen; Motoyuki Sato

doi:10.1109/IGARSS.2012.6351627

General polarimetric model-based decomposition for coherency matrix

Si Wei Chen, Motoyuki Sato

Department of Basic Studies

Research output: Contribution to conference › Paper › peer-review

11 Citations (Scopus)

Abstract

Orientation angle compensation has been incorporated into model-based decomposition to cure the overestimation of volume scattering contribution, by rotating the coherency matrix to minimize the cross-polarization term. However, this processing cannot always guarantee to rotate the double-and odd-bounce scattering components back to zero orientation angle cases and with zero cross-polarization power. Therefore, built-up patches with large orientation angles still suffer from the scattering mechanism ambiguity. General double- and odd-bounce scattering models are proposed to fit for the cross-polarization and off-diagonal terms, by separating their independent orientation angles. The general decomposition framework is proposed. Its efficiency and advantage is demonstrated and evaluated.

Original language	English
Pages	99-102
Number of pages	4
DOIs	https://doi.org/10.1109/IGARSS.2012.6351627
Publication status	Published - 2012 Dec 1
Event	2012 32nd IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2012 - Munich, Germany Duration: 2012 Jul 22 → 2012 Jul 27

Other

Other	2012 32nd IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2012
Country	Germany
City	Munich
Period	12/7/22 → 12/7/27

Keywords

Synthetic aperture radar (SAR)
general model
model-based decomposition
polarimetry

ASJC Scopus subject areas

Computer Science Applications
Earth and Planetary Sciences(all)

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abstract = "Orientation angle compensation has been incorporated into model-based decomposition to cure the overestimation of volume scattering contribution, by rotating the coherency matrix to minimize the cross-polarization term. However, this processing cannot always guarantee to rotate the double-and odd-bounce scattering components back to zero orientation angle cases and with zero cross-polarization power. Therefore, built-up patches with large orientation angles still suffer from the scattering mechanism ambiguity. General double- and odd-bounce scattering models are proposed to fit for the cross-polarization and off-diagonal terms, by separating their independent orientation angles. The general decomposition framework is proposed. Its efficiency and advantage is demonstrated and evaluated.",

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AU - Chen, Si Wei

AU - Sato, Motoyuki

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AB - Orientation angle compensation has been incorporated into model-based decomposition to cure the overestimation of volume scattering contribution, by rotating the coherency matrix to minimize the cross-polarization term. However, this processing cannot always guarantee to rotate the double-and odd-bounce scattering components back to zero orientation angle cases and with zero cross-polarization power. Therefore, built-up patches with large orientation angles still suffer from the scattering mechanism ambiguity. General double- and odd-bounce scattering models are proposed to fit for the cross-polarization and off-diagonal terms, by separating their independent orientation angles. The general decomposition framework is proposed. Its efficiency and advantage is demonstrated and evaluated.

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