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Sensors 2015, 15(9), 24087-24108; doi:10.3390/s150924087

Three-Component Decomposition Based on Stokes Vector for Compact Polarimetric SAR

1
School of Electronic Science and Engineering, National University of Defense Technology, Changsha 410073, China
2
Information Technology Services, University of Birmingham, Birmingham B152TT, UK
3
Key Laboratory of Opt-Electronic Information Processing, Shenyang Institute of Automation, Chinese Academy of Science, Shenyang 110015, China
*
Author to whom correspondence should be addressed.
Academic Editor: Assefa M. Melesse
Received: 26 April 2015 / Revised: 2 September 2015 / Accepted: 9 September 2015 / Published: 18 September 2015
(This article belongs to the Section Remote Sensors)
View Full-Text   |   Download PDF [1036 KB, uploaded 18 September 2015]   |  

Abstract

In this paper, a three-component decomposition algorithm is proposed for processing compact polarimetric SAR images. By using the correspondence between the covariance matrix and the Stokes vector, three-component scattering models for CTLR and DCP modes are established. The explicit expression of decomposition results is then derived by setting the contribution of volume scattering as a free parameter. The degree of depolarization is taken as the upper bound of the free parameter, for the constraint that the weighting factor of each scattering component should be nonnegative. Several methods are investigated to estimate the free parameter suitable for decomposition. The feasibility of this algorithm is validated by AIRSAR data over San Francisco and RADARSAT-2 data over Flevoland. View Full-Text
Keywords: compact polarimetric SAR; Stokes vector; three-component decomposition; CTLR; DCP compact polarimetric SAR; Stokes vector; three-component decomposition; CTLR; DCP
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Wang, H.; Zhou, Z.; Turnbull, J.; Song, Q.; Qi, F. Three-Component Decomposition Based on Stokes Vector for Compact Polarimetric SAR. Sensors 2015, 15, 24087-24108.

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