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PolInsar analysis of X-band data over vegetated and urban areas

hal.structure.identifierONERA - The French Aerospace Lab [Châtillon]
dc.contributor.authorGARESTIER, Franck
hal.structure.identifierONERA - The French Aerospace Lab [Châtillon]
dc.contributor.authorDUBOIS-FERNANDEZ, P.
hal.structure.identifierONERA - The French Aerospace Lab [Châtillon]
dc.contributor.authorDUPUIS, X.
hal.structure.identifierLaboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux [L3AB]
hal.structure.identifierObservatoire aquitain des sciences de l'univers [OASU]
hal.structure.identifierLaboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
dc.contributor.authorPAILLOU, Philippe
dc.contributor.authorHAJNSEK, Irena
dc.date.issued2006
dc.identifier.issn0196-2892
dc.description.abstractEnhis paper investigates the polarimetric and polarimetric interferometric synthetic aperture radar (PolInSAR) information contained in the high-resolution X-band data acquired by the RAMSES airborne SAR system over an area around Avignon, France containing bare surfaces, vegetation, and urban areas. The interferometric coherences are computed over natural and urban areas for all possible baseline copolar polarizations. In the complex plane, the obtained regions of coherence corresponding to most vegetation areas display small angular extents, meaning that if penetration occurs in the foliage, it is shallower than the system height accuracy. To quantify the PolInSAR information, an analysis of the interferometric height accuracy is first performed, and the results are compared with those associated with a theoretical and an empirical model. Concerning vegetation, a 6-m height difference is measured between the different polarimetric phase centers over a sparse pine forest, probably due to the presence of holes in the canopy. Crop study reveals also that wheat-type fields present oriented media properties at X-band due to their vertical structure. Over urban areas, in most cases, building height can be accurately obtained by using Pauli polarimetric phase center information.
dc.language.isoen
dc.publisherInstitute of Electrical and Electronics Engineers
dc.title.enPolInsar analysis of X-band data over vegetated and urban areas
dc.typeArticle de revue
dc.identifier.doi10.1109/TGRS.2005.862525
dc.subject.halPhysique [physics]/Astrophysique [astro-ph]/Cosmologie et astrophysique extra-galactique [astro-ph.CO]
dc.subject.halPlanète et Univers [physics]/Astrophysique [astro-ph]
bordeaux.journalIEEE Transactions on Geoscience and Remote Sensing
bordeaux.page356 – 364
bordeaux.volume44-2
bordeaux.peerReviewedoui
hal.identifierhal-00068035
hal.version1
hal.popularnon
hal.audienceNon spécifiée
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00068035v1
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