NDLI: Modification of Polarimetric SAR Interferometry Target Decomposition With Accurate Topography

Content Provider	IEEE Xplore Digital Library
Author	Shenglong Guo Yang Li Jingjing Zhang Qiang Yin Wen Hong
Copyright Year	2004
Abstract	In this letter, an accurate topographical phase is applied to the model-based (odd-bounce, double-bounce, and volume scattering) decomposition of synthetic aperture radar (SAR) interferometry data. The decomposition procedure considered here is a determined nonlinear equation system that can be solved numerically. The accurate topographical phase is first estimated and then used as the initial input parameter to our numerical method. This approach avoids large errors generated by the constant topographical phase in fluctuating forested areas. Additionally, the modified volume scattering model introduced by Yamaguchi et al. is applied to the polarimetric SAR interferometric target decomposition data of forested areas, rather than the purely random volume scattering of Freeman and Durden, to produce the best fit to the measured data. This method retrieves the magnitude associated with each mechanism and their heights. The quality of the decomposition is demonstrated using L-band simulated data created with PolSARproSim software and L-band airborne data (BioSAR 2008) acquired by the DLR E-SAR in the Vindeln Municipality in northern Sweden.
Sponsorship	IEEE Geoscience and Remote Sensing Society
Starting Page	1476
Ending Page	1480
Page Count	5
File Size	1322985
File Format	PDF
ISSN	1545598X
Volume Number	12
Issue Number	7
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Vegetation Coherence Surface topography Synthetic aperture radar Covariance matrices Matrix decomposition vegetation coherence region Ground topographical phase estimation polarimetric SAR interferometry (PolInSAR) target decomposition
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Geotechnical Engineering and Engineering Geology

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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