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RECERCAT Home > Universitat Politècnica de Catalunya > Documents de recerca > View document

To access the full text documents, please follow this link: http://hdl.handle.net/2117/2121

Title:	Topography dependent motion compensation for repeat-pass interferometric SAR systems
Author:	Prats Iraola, Pau; Reigber, Andreas; Mallorquí Franquet, Jordi Joan
Other authors:	Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions; Universitat Politècnica de Catalunya. RSLAB - Grup de Recerca en Teledetecció
Abstract:	This letter presents a new motion compensation algorithm to process airborne interferometric repeat-pass synthetic aperture radar (SAR) data. It accommodates topography variations during SAR data processing, using an external digital elevation model. The proposed approach avoids phase artifacts, azimuth coregistration errors, and impulse response degradation, which usually appear due to the assumption of a constant reference height during motion compensation. It accurately modifies phase history of all targets before azimuth compression, resulting in an enhanced image quality. Airborne L-band repeat-pass interferometric data of the German Aerospace Center experimental airborne SAR (E-SAR) is used to validate the algorithm.
Abstract:	Peer reviewed
Subject(s):	Àrees temàtiques de la UPC::Enginyeria electrònica i telecomunicacions::Radiocomunicació i exploració electromagnètica::Teledetecció Boundary layer (Meteorology) Topography Image processing Radar Equipment and supplies Remote sensing geophysical signal processing image enhancement motion compensation radar imaging radiowave interferometry remote sensing by radar synthetic aperture radar topography (Earth) German Aerospace Center E-SAR SAR data processing airborne L-band repeat-pass interferometric data airborne SAR azimuth compression azimuth coregistration errors external digital elevation model image enhancement image registration impulse response degradation interferometry motion compensation phase artifacts repeat-pass interferometric SAR systems synthetic aperture radar topography Capa límit (Meteorologia) Topografia Imatge -- Processament Radar Sensors remots
Rights:	Consulteu les condicions d'ús d'aquest document en el repositori original:http://hdl.handle.net/2117/2121
Document type:	Article
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