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Complémentarité polarimétrie/interférométrie pour la détection et la caractérisation de cibles.

Abstract : This work presents a study of the complementarity of polarimetry and interferometry for the detection and the characterisation of targets using SAR data. Polarimetric remote sensing concerns the study of the electromagnetic scattering behaviour of a scene and provides physical information about the area under study. Interferometry estimates a scene topography or its deformations. Interferometry and polarimetry are powerful tools in SAR remote sensing but are generally used separately.
The implementation of the interferometry and polarimetry complementarity consists in linking an interferometric phase to a scattering mechanism. Selected approaches based on high resolution methods, specifically the ESPRIT principle, are introduced in SAR imaging to perform this joint analysis. They allow to discriminate the ground and canopy phases, in forested areas and to isolate a building scattering pattern from its surrounding.
Another concept of the complementarity is proposed, based on the superresolution principle. The idea is to use interferometric SAR data to improve a SAR image resolution. The use of superresolution data allows a better characterisation of the target nature like building edge detection.
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Submitted on : Thursday, March 16, 2006 - 2:35:57 PM
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  • HAL Id : tel-00011963, version 1

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Stéphane Guillaso. Complémentarité polarimétrie/interférométrie pour la détection et la caractérisation de cibles.. Traitement du signal et de l'image [eess.SP]. Université Rennes 1, 2003. Français. ⟨tel-00011963⟩

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