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. DOI: 10.1109/LGRS.2007.895712.
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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).
|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|
|Journal or Publication Title:||IEEE Geoscience and Remote Sensing Letters|
|In Open Access:||Yes|
|In ISI Web of Science:||Yes|
|Page Range:||pp. 349-353|
|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)|
|Institutes and Institutions:||Microwaves and Radar Institute|
Microwaves and Radar Institute > SAR Technology
|Deposited By:||Dr. Pau Prats|
|Deposited On:||16 Jun 2011 09:48|
|Last Modified:||16 Jun 2011 09:48|
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