Influence of the nature of a priori knowledge on the precision of vegetation height estimation in polarimetric SAR interferometry
Conference: EUSAR 2012 - 9th European Conference on Synthetic Aperture Radar
04/23/2012 - 04/26/2012 at Nuremberg, Germany
Proceedings: EUSAR 2012
Pages: 4Language: englishTyp: PDF
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Authors:
Arnaubec, Aurélien (Institut Fresnel, CNRS, Aix-Marseille Université, Ecole Centrale Marseille, Campus de Saint Jérôme, 13013 Marseille, France )
Roueff, Antoine; Réfregier, Philippe (Institut Fresnel, CNRS, Aix-Marseille Université, Ecole Centrale Marseille, Campus de Saint Jérôme, 13013 Marseille, France)
Dubois-Fernandez, Pascale C. (Office National d’Études et de Recherches Aerospatiales, 13661 Salon-de-Provence, France)
Abstract:
In a recent paper [1], the precision of the vegetation height estimation for the random volume over ground model with polarimetric SAR interferometry has been discussed with the Cramer-Rao lower bound (CRLB). In this communication, we study in more details the influence of a priori knowledge on the CRLB of the vegetation height. We analyze with different examples, the information on elements of the coherency matrices of the ground and of the volume scattering that can be relevant to improve the vegetation height estimation and the potential interest of a priori knowledge of the ground topography.