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Krieger, Gerhard and Gebert, Nicolas and Moreira, Alberto (2004) Unambiguous SAR Signal Reconstruction from Nonuniform Displaced Phase Center Sampling. IEEE Geoscience and Remote Sensing Letters, 1 (4), pp. 260-264. IEEE. doi: 10.1109/LGRS.2004.832700.
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Abstract
The displaced phase center (DPC) technique will enable a wide-swath synthetic aperture radar (SAR) with high azimuth resolution. In a classic DPC system, the pulse repetition frequency (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 nonuniform sampling of the synthetic aperture. This letter derives an innovative reconstruction algorithm and shows that an unambiguous reconstruction of a SAR signal is possible for nonuniform sampling of the synthetic aperture. This algorithm will also have great potential for multistatic satellite constellations as well as the dual receive antenna mode in Radarsat 2 and TerraSAR-X.
| Item URL in elib: | https://elib.dlr.de/6176/ | ||||||||||||||||
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| Document Type: | Article | ||||||||||||||||
| Additional Information: | ©2004 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE | ||||||||||||||||
| Title: | Unambiguous SAR Signal Reconstruction from Nonuniform Displaced Phase Center Sampling | ||||||||||||||||
| Authors: |
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| Date: | October 2004 | ||||||||||||||||
| Journal or Publication Title: | IEEE Geoscience and Remote Sensing Letters | ||||||||||||||||
| Open Access: | Yes | ||||||||||||||||
| Gold Open Access: | No | ||||||||||||||||
| In SCOPUS: | No | ||||||||||||||||
| In ISI Web of Science: | No | ||||||||||||||||
| Volume: | 1 | ||||||||||||||||
| DOI: | 10.1109/LGRS.2004.832700 | ||||||||||||||||
| Page Range: | pp. 260-264 | ||||||||||||||||
| Publisher: | IEEE | ||||||||||||||||
| Status: | Published | ||||||||||||||||
| Keywords: | Azimuth ambiguities, digital beamforming, displaced phase center antenna (DPCA), high-resolution wide-swath, SAR, interferometry, synthetic aperture radar (SAR). | ||||||||||||||||
| HGF - Research field: | Aeronautics, Space and Transport (old) | ||||||||||||||||
| HGF - Program: | Space (old) | ||||||||||||||||
| HGF - Program Themes: | W EO - Erdbeobachtung | ||||||||||||||||
| DLR - Research area: | Space | ||||||||||||||||
| DLR - Program: | W EO - Erdbeobachtung | ||||||||||||||||
| DLR - Research theme (Project): | W - Vorhaben Entwicklung eines Mini-SAR (old) | ||||||||||||||||
| Location: | Oberpfaffenhofen | ||||||||||||||||
| Institutes and Institutions: | Microwaves and Radar Institute Microwaves and Radar Institute > Spaceborne SAR Systems | ||||||||||||||||
| Deposited By: | Krieger, Dr.-Ing. Gerhard | ||||||||||||||||
| Deposited On: | 11 Aug 2006 | ||||||||||||||||
| Last Modified: | 31 Jul 2019 19:14 |
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