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An Orthogonal Projection approach for Suppressing Moving Targets in Multi-Channel SAR Images

: Schulz, F.; Gierull, C.; Brenner, A.

Verband Deutscher Elektrotechniker e.V. -VDE-, Berlin; Informationstechnische Gesellschaft -ITG-; Deutsche Forschungsanstalt für Luft- und Raumfahrt e.V. -DLR-; European Aeronautic Defense and Space Company -EADS-; Forschungsgesellschaft für Angewandte Naturwissenschaften -FGAN-:
EUSAR 2008, 7th European Conference on Synthetic Aperture Radar 2008. Vol.3: Proceedings : June 2 - 5 2008 - Friedrichshafen, Germany
Berlin: VDE-Verlag, 2008
ISBN: 978-3-8007-3084-1
European Conference on Synthetic Aperture Radar (EUSAR) <7, 2008, Friedrichshafen>
Conference Paper
Fraunhofer FHR

Synthetic aperture radar (SAR) as a method for ground imaging is widely used for air- and space-borne remote sensing applications and military reconnaissance tasks. If a multi-channel sensor is used for reception the radar system becomes also capable of detecting ground moving targets by utilizing proper spatio-temporal signal processing. Moving objects are imaged at wrong positions and may appear smeared within a SAR image, which can significantly compromise the image quality. Therefore, an orthogonal projection approach is proposed in this paper that utilizes joint spatio-temporal processing to suppress artifacts in the SAR image caused by object motion in the observed scene. Results obtained with experimental data from the FGAN air-borne system AER-II show the applicability of the presented method.