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Comparison of Topography- and Aperture-Dependent Motion Compensation Algorithms for Airborne SAR

Prats, Pau and Camara de Macedo, Karlus A. and Reigber, Andreas and Scheiber, Rolf and Mallorqui, Jordi J. (2007) Comparison of Topography- and Aperture-Dependent Motion Compensation Algorithms for Airborne SAR. IEEE Geoscience and Remote Sensing Letters, 4 (3), pp. 349-353. IEEE - Institute of Electrical and Electronics Engineers. doi: 10.1109/LGRS.2007.895712. ISSN 1545-598X.

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Official URL: http://www.grss-ieee.org/menu.taf?menu=Publications&detail=GRSL


This letter presents a comparison between three Fourier-based motion compensation algorithms for airborne SAR systems. These algorithms circumvent the limitations of conventional motion compensation, namely the assumption of a reference height and the beam-center approximation. All these approaches rely on the inherent time-frequency relation in SAR systems but exploit it differently, with the consequent differences in accuracy and computational burden. After a brief overview of the three approaches, the performance of each algorithm is analyzed with respect to azimuthal topography accommodation, angle accommodation, and maximum frequency of track deviations with which the algorithm can cope. Also, an analysis on the computational complexity is presented. Quantitative results are shown using real data acquired by the Experimental SAR (E-SAR) system of the German Aerospace Center (DLR).

Item URL in elib:https://elib.dlr.de/70102/
Document Type:Article
Additional Information:©2007 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE
Title:Comparison of Topography- and Aperture-Dependent Motion Compensation Algorithms for Airborne SAR
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Reigber, AndreasBerlin University of TechnologyUNSPECIFIEDUNSPECIFIED
Mallorqui, Jordi J.Universitat Politecnica de CatalunyaUNSPECIFIEDUNSPECIFIED
Date:July 2007
Journal or Publication Title:IEEE Geoscience and Remote Sensing Letters
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
Page Range:pp. 349-353
Publisher:IEEE - Institute of Electrical and Electronics Engineers
Keywords:synthetic aperture radar (SAR), motion compensation, interferometry, repeat-pass interferometry, calibration, image registration
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 Flugzeug-SAR (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute
Microwaves and Radar Institute > SAR Technology
Deposited By: Prats, Dr. Pau
Deposited On:16 Jun 2011 09:48
Last Modified:06 Nov 2019 10:37

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