SAR Signal Reconstruction from Non-Uniform Displaced Phase Centre Sampling in the Presence of Perturbations
Gebert N, Krieger G, Moreira A (2005)
Publication Type: Conference contribution
Publication year: 2005
Edited Volumes: International Geoscience and Remote Sensing Symposium (IGARSS)
Series: IEEE International Geoscience and Remote Sensing Symposium Proceedings
Book Volume: 2
Pages Range: 1034-1037
Conference Proceedings Title: IGARSS International Geoscience and Remote Sensing Symposium
Event location: Seoul
ISBN: 0780390504
URI: https://elib.dlr.de/18800/
DOI: 10.1109/IGARSS.2005.1525291
Abstract
The displaced phase centre (DPC) technique enables a wide swath SAR with high azimuth resolution. In classic DPC systems, the pulse repetition frequency (PRF), sensor velocity and antenna length underlie a stringent timing requirement and any deviation will result in a non-uniform sampling of the synthetic aperture. This restriction can be overcome by the use of a reconstruction algorithm, which enables a recovery of the unambiguous Doppler spectrum also in case of a non-uniform sampling. This paper explains limitations of the reconstruction imposed by the processing and the impacts on the ambiguity suppression. The potential of the algorithm when applied to DPC systems like TerraSAR-X with its split receive antenna is demonstrated and the benefits resulting from the additional receive aperture regarding swath width and resolution are pointed out. Further on, the impact of additive and phase noise on the reconstruction and its sensitivity against these perturbations are shown. © 2005 IEEE.
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Germany (DE)How to cite
APA:
Gebert, N., Krieger, G., & Moreira, A. (2005). SAR Signal Reconstruction from Non-Uniform Displaced Phase Centre Sampling in the Presence of Perturbations. In Center IEEE Operations (Eds.), IGARSS International Geoscience and Remote Sensing Symposium (pp. 1034-1037). Seoul.
MLA:
Gebert, Nicolas, Gerhard Krieger, and Alberto Moreira. "SAR Signal Reconstruction from Non-Uniform Displaced Phase Centre Sampling in the Presence of Perturbations." Proceedings of the 2005 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2005, Seoul Ed. Center IEEE Operations, 2005. 1034-1037.
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