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A maximum likelihood analysis of the RVoG model for forestry studies in polarimetric SAR interferometry

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Cita com:
hdl:2117/86781

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López Martínez, CarlosMés informacióMés informacióMés informació
Alonso González, AlbertoMés informacióMés informació
Document typeConference report
Defense date2013
PublisherEuropean Space Agency (ESA)
Rights accessRestricted access - publisher's policy
All rights reserved. This work is protected by the corresponding intellectual and industrial property rights. Without prejudice to any existing legal exemptions, reproduction, distribution, public communication or transformation of this work are prohibited without permission of the copyright holder
Abstract
This work analyses the validity of the RVoG model as- sumption in case of PolInSAR data in forestry analy- sis. In order to assure that the interferometric coherence describes a line, as imposed by the RVoG model, the normalized PolInSAR coherency matrix must be affine equivalent to an Hermitian matrix. On the basis of this observation, two tests for the RVoG model hypothesis are proposed. A test based on the analysis of the coherence region shape, and a test based on a Maximum Likelihood approach, on the basis of the zero mean, complex, Gaus- sian distribution. Preliminary results would indicate a larger validity of the model at P-band over L-band and, in case of Tropical forests.
CitationLopez-Martinez, C., Alonso, A. A maximum likelihood analysis of the RVoG model for forestry studies in polarimetric SAR interferometry. A: International Workshop on Science and Applications of SAR Polarimetry and Polarimetric Interferometry. "Proceedings of 6th International Workshop on Science and Applications of SAR Polarimetry and Polarimetric Interferometry". Frascati: European Space Agency (ESA), 2013. 
URIhttp://hdl.handle.net/2117/86781
ISBN978-92-9092-277-3
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