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Propagation Effects and Polarimetric Methods in Synthetic Aperture Radar Imaging

Danklmayer, Andreas (2008) Propagation Effects and Polarimetric Methods in Synthetic Aperture Radar Imaging. DLR-Forschungsbericht. DLR-FB-2008-14. Dissertation. Technische Universität Chemnitz. 141 S.

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In this study, the influence of the atmosphere on the imaging capabilities of synthetic aperture radar (SAR) is investigated. One goal was to identify any potential effects capable of distorting SAR images. Investigations on the influence of phase errors and attenuation effects were carried out. Likewise a special experiment, called ATMOSAR (Atmospheric SAR Experiment) has been performed in order to determine possible distortions. A differential interferometric synthetic aperture (DinSAR) analysis was carried out which revealed that differences appearing in the differential interferograms are primarely either due to residual motion errors resulting from the limited baseline accuracy or based on soil moisture changes (temporal decorrelation) and possibly topographical changes between the two acquisitions. Furthermore, an algorithm is presented, which allows identification of artefacts in SAR images caused by heavy precipitation events. An additional aspect of this work was the introduction of the novel target decomposition techniques, namely the ”principal component analysis” and the ”Gersgorin disc theorem” and its applications.

Item URL in elib:https://elib.dlr.de/47898/
Document Type:Monograph (DLR-Forschungsbericht, Dissertation)
Title:Propagation Effects and Polarimetric Methods in Synthetic Aperture Radar Imaging
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Date:June 2008
Refereed publication:No
Open Access:No
Number of Pages:141
Keywords:Synthetic aperture radar, SAR, microwave imaging, atmospheric propagation effects, signal attenuation, radar polarimetry, principal component analysis, Gersgorin theorem, TerraSAR-X
Institution:Technische Universität Chemnitz
Department:Elektrotechnik und Informationstechnik
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EO - Erdbeobachtung
DLR - Research area:Space
DLR - Program:W EO - Erdbeobachtung
DLR - Research theme (Project):W - Vorhaben SAR-Expert-Support-Lab (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute > Radar Concepts
Microwaves and Radar Institute
Deposited By: Danklmayer, Dr.-Ing. Andreas
Deposited On:06 Oct 2008
Last Modified:27 Apr 2009 13:38

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