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Detection of partially coherent scatterers in multidimensional SAR tomography: A theoretical study (Articolo in rivista)

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Detection of partially coherent scatterers in multidimensional SAR tomography: A theoretical study (Articolo in rivista) (literal)

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Pauciullo, A.a and De Maio, A.b and Perna, S.c d and Reale, D.a and Fornaro, G.a (2014)
Detection of partially coherent scatterers in multidimensional SAR tomography: A theoretical study
in IEEE transactions on geoscience and remote sensing
(literal)

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Pauciullo, A.a and De Maio, A.b and Perna, S.c d and Reale, D.a and Fornaro, G.a (literal)

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Istituto per Il Rilevamento Elettromagnetico Dell'Ambiente, Consiglio Nazionale Delle Ricerche, 80124 Napoli, Italy; Dipartimento di Ingegneria Biomedica, Elettronica e Delle Telecomunicazioni, Universit (literal)

Titolo

Detection of partially coherent scatterers in multidimensional SAR tomography: A theoretical study (literal)

Abstract

Multidimensional synthetic aperture radar (SAR) imaging is a technique based on coherent SAR data combination for space (full 3-D) and space/deformation-velocity (4-D) analysis. It extends SAR interferometry and differential interferometry concepts, offering new options for the analysis and monitoring of ground scenes. In this paper, we consider the problem of detecting scatterers showing partial correlation properties induced by simultaneous acquisitions from satellite formations or an uneven temporal distribution of satellite constellations. To this end, we first provide a general model for the pixel imaged by a multidimensional SAR system. Then, we design a constant false alarm rate (CFAR) decision rule accounting for the presence of partially coherent scatterers. At the analysis stage, we assess the performance of the new detector also in comparison with a previously proposed CFAR scheme, developed in the context of SAR tomography for fully coherent scatterers. (literal)

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