SAR Signal Reconstruction from Non-Uniform Displaced Phase Centre Sampling
Krieger G, Gebert N, Moreira A (2004)
Publication Type: Conference contribution
Publication year: 2004
Publisher: IEEE
Edited Volumes: International Geoscience and Remote Sensing Symposium (IGARSS)
Book Volume: 3
Pages Range: 1763-1766
Conference Proceedings Title: IEEE Geoscience and Remote Sensing Symposium (IGARSS)
Event location: Anchorage, AK
URI: https://elib.dlr.de/6177/
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 multistage satellite constellations as well as the dual receive antennas in Radarsat II and TerraSAR-X.
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Germany (DE)How to cite
APA:
Krieger, G., Gebert, N., & Moreira, A. (2004). SAR Signal Reconstruction from Non-Uniform Displaced Phase Centre Sampling. In IEEE Geoscience and Remote Sensing Symposium (IGARSS) (pp. 1763-1766). Anchorage, AK: IEEE.
MLA:
Krieger, Gerhard, Nicolas Gebert, and Alberto Moreira. "SAR Signal Reconstruction from Non-Uniform Displaced Phase Centre Sampling." Proceedings of the 2004 IEEE International Geoscience and Remote Sensing Symposium Proceedings: Science for Society: Exploring and Managing a Changing Planet. IGARSS 2004, Anchorage, AK IEEE, 2004. 1763-1766.
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