Efficient Time-Domain Focussing for General Bistatic SAR Configurations: Bistatic Fast Factorised Backprojection

Rodriguez-Cassola M, Prats P, Krieger G, Moreira A (2010)

Publication Type: Conference contribution

Publication year: 2010

Publisher: VDE Verlag GmbH

Edited Volumes: Proceedings of the European Conference on Synthetic Aperture Radar, EUSAR

Pages Range: 1050-1053

Conference Proceedings Title: European Conference on Synthetic Aperture Radar (EUSAR)

ISBN: 9783800732722

URI: https://elib.dlr.de/64457/

Abstract

Due to the lack of an appropriate symmetry in the acquisition geometry, generalised bistatic SAR cannot benefit from the two main properties of low-to-moderate resolution monostatic SAR: azimuth-invariance and topography-insensitivity. Precise accommodation of azimuth-variance and topography is a real challenge for efficent algorithms working in the Fourier-domain, but can be quite naturally handled by time-domain approaches. We report about the first efficient and practical implementation of a generalised bistatic SAR imaging algorithm with an accurate accommodation of these two effects. The algorithm has a common structure with the monostatic fast factorised backprojection (FFBP), and is therefore based on subaperture processing. The algorithm is tested with both simulated and actual bistatic SAR data. The actual data correspond to the spaceborne-airborne experiment between TerraSAR-X and F-SAR performed in 2007. The presented approach proves its suitability for precise imaging of any given scene acquired by any given bistatic SAR configuration.

Authors with CRIS profile

Gerhard Krieger

Additional Organisation(s)

Professur für Kognitive Radarsysteme für die Fernerkundung

Involved external institutions

Deutsches Zentrum für Luft- und Raumfahrt e.V. (DLR) / German Aerospace Center DE Germany (DE)

How to cite

APA:

Rodriguez-Cassola, M., Prats, P., Krieger, G., & Moreira, A. (2010). Efficient Time-Domain Focussing for General Bistatic SAR Configurations: Bistatic Fast Factorised Backprojection. In European Conference on Synthetic Aperture Radar (EUSAR) (pp. 1050-1053). VDE Verlag GmbH.

MLA:

Rodriguez-Cassola, Marc, et al. "Efficient Time-Domain Focussing for General Bistatic SAR Configurations: Bistatic Fast Factorised Backprojection." Proceedings of the 8th European Conference on Synthetic Aperture Radar, EUSAR 2010 VDE Verlag GmbH, 2010. 1050-1053.

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