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A new compact polarimetric SAR decomposition technique

DSpace at IIT Bombay

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Title A new compact polarimetric SAR decomposition technique
 
Creator BHATTACHARYA, A
DE, S
MUHURI, A
SURENDAR, M
VENKATARAMAN, G
DAS, AK
 
Subject RADAR OBSERVATIONS
 
Description In this paper, we have proposed a new decomposition technique for compact polarimetric (CP) synthetic aperture radar (SAR) data. In the proposed decomposition, the odd and the even bounce scattering powers P-S and P-D are, respectively, obtained by combining the powers received in the opposite-sense circular (OC) polarization and the same-sense circular (SC) polarization transmitted with the polarized power fraction (Omega). The volume scattering power P-V is obtained by combining the total power with the unpolarized power fraction (1 - Omega). The parameter Omega is a function of both the transmitting and the receiving ellipticities (chi(t), chi(r)) and orientations (psi(t)psi(r)). These parameters thus provide a wider degree of freedom to accommodate a range of scattering mechanisms which are not reflected in the existing approaches. The proposed method is applied on simulated CP-SAR data obtained from full-polarimetric E-SAR (Experimental Synthetic Aperture Radar) and AIRSAR (Airborne Synthetic Aperture Radar) L-band data sets. The proposed decomposition shows appreciable improvements in the scattering powers compared to the m - delta and the m - chi decompositions.
 
Publisher TAYLOR & FRANCIS LTD
 
Date 2016-01-15T08:13:21Z
2016-01-15T08:13:21Z
2015
 
Type Article
 
Identifier REMOTE SENSING LETTERS, 6(12)914-923
2150-704X
2150-7058
http://dx.doi.org/10.1080/2150704X.2015.1088669
http://dspace.library.iitb.ac.in/jspui/handle/100/18137
 
Language en