Title :
A study of the RVoG coherent scattering model validity in PolInSAR for forests studies
Author :
Lopez-Martinez, Carlos ; Alonso, Alberto
Author_Institution :
Signal Theor. & Commun. Dept. (TSC), Univ. Politec. de Catalunya (UPC), Barcelona, Spain
Abstract :
This work addresses the analysis of the validity of the Random-Volume-over-Ground scattering model for forests studies based on PolInSAR data. The analysis is based on the definition of a Generalized Likelihood Ratio Test that allows to test the model validity for all the pixels of the images and without any external information. Finally, the validity of the RVoG models assumption is tested for data from Tropical and Boreal forests imaged at P- and L-band at different interferometric configurations.
Keywords :
backscatter; radar imaging; radar interferometry; radar polarimetry; synthetic aperture radar; vegetation; vegetation mapping; L-band image; P-band image; PolInSAR data; RVoG coherent scattering model; boreal forest; forest studies; generalized likelihood ratio test; image pixels; interferometric configuration; model validity testing; random-volume-over-ground scattering model; tropical forest; Data models; Decorrelation; Interferometry; L-band; Scattering; Synthetic aperture radar; Vectors;
Conference_Titel :
Geoscience and Remote Sensing Symposium (IGARSS), 2013 IEEE International
Conference_Location :
Melbourne, VIC
Print_ISBN :
978-1-4799-1114-1
DOI :
10.1109/IGARSS.2013.6723290
