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

Conference: EUSAR 2008 - 7th European Conference on Synthetic Aperture Radar
06/02/2008 - 06/05/2008 at Friedrichshafen, Germany

Proceedings: EUSAR 2008

Pages: 4Language: englishTyp: PDF

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Schulz, F.; Gierull, C. H.; Brenner, A. R. (FGAN-FHR/ARB, Neuenahrer Str. 20, 53343Wachtberg-Werthhoven, Germany)

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.