Tomographic Analyses of Non-stationary Volumetric Scattering
Conference: EUSAR 2010 - 8th European Conference on Synthetic Aperture Radar
06/07/2010 - 06/10/2010 at Aachen, Germany
Proceedings: EUSAR 2010
Pages: 4Language: englishTyp: PDF
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Authors:
Lombardini, Fabrizio; Cai, Francesco (Department of Information Engineering, University of Pisa, 56122 Pisa, Italy)
Pardini, Matteo (Deutsches Zentrum für Luft- und Raumfahrt (DLR), Microwave and Radar Institute, Oberpfaffenhofen, Germany)
Abstract:
Much interest is continuing to grow in the advanced differential tomography framework which crosses differential SAR interferometry with 3D multibaseline tomography, producing ‘space-time’ signatures of scattering dynamics in the SAR cell. In this paper, the important effect of temporal decorrelation during the repeat pass multibaseline acquisition is analyzed on superresolution (MUSIC) tomography. Moreover, a differential tomographic processor is proposed to get the new functionalities of forest volume tomography robust to temporal decorrelation, and of subcanopy ground subsidence monitoring. To this aim, a generalized MUSIC method matched to non line spectra is adapted to the 2-D domain. Simulated and first airborne real data results prove the concept.