Digital Beamforming and Non-Uniform Displaced Phase Centre Sampling in Bi- and Multistatic SAR
Krieger G, Gebert N, Moreira A (2004)
Publication Type: Conference contribution
Publication year: 2004
Publisher: VDE Verlag
Book Volume: 2
Pages Range: 563-566
Conference Proceedings Title: European Conference on Synthetic Aperture Radar (EUSAR)
URI: https://elib.dlr.de/6178/
Abstract
The displaced phase centre (DPC) technique will enable a wide swath SAR with high azimuth resolution. In a classic DPC system, the PRF has to be chosen such that the SAR carrier moves just one half of its antenna length between subsequent radar pulses. Any deviation from this PRF will result in a non-uniform sampling of the synthetic aperture. This paper shows that an unambiguous reconstruction of the SAR signal is also possible in case of such a non-optimum PRF. For this, an innovative reconstruction algorithm is derived, which enables a recovery of the unambiguous Doppler spectrum also in case of a non-uniform sampling of the synthetic aperture. This algorithm will also have a great potential for multistatic satellite constellations as well as the dual receive antenna mode in Radarsat 2 and TerraSAR-X.
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Germany (DE)How to cite
APA:
Krieger, G., Gebert, N., & Moreira, A. (2004). Digital Beamforming and Non-Uniform Displaced Phase Centre Sampling in Bi- and Multistatic SAR. In European Conference on Synthetic Aperture Radar (EUSAR) (pp. 563-566). VDE Verlag.
MLA:
Krieger, Gerhard, Nicolas Gebert, and Alberto Moreira. "Digital Beamforming and Non-Uniform Displaced Phase Centre Sampling in Bi- and Multistatic SAR." Proceedings of the European Conference on Synthetic Aperture Radar (EUSAR) VDE Verlag, 2004. 563-566.
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