Krieger, Gerhard and Fiedler, Hauke and Moreira, Alberto (2003) Bi- and Multi-Static SAR Missions: Potentials and Challenges. In: Proceedings of the ASAR Workshop 2003, CD-ROM. ASAR Workshop, 2003-06-25 - 2003-06-27, Saint-Hubert, Quebec, Canada.
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Abstract
The performance and capabilities of bi- and multistatic spaceborne synthetic aperture radar (SAR) are analyzed. Such systems can be optimized for a broad range of applications like frequent monitoring, wide swath imaging, single-pass cross-track interferometry, along-track interferometry, resolution enhancement or radar tomography. Further potentials arises from digital beamforming on receive, which allows to gather additional information about the direction of the scattered radar echoes. This directional information can be used to suppress interferences, to improve geometric and radiometric resolution, or to increase the unambiguous swath width. Furthermore, a coherent combination of multiple receiver signals will allow for a suppression of azimuth ambiguities. For this, a reconstruction algorithm is derived, which enables a recovery of the unambiguous Doppler spectrum also in case of non-optimum receiver aperture displacements leading to a non-uniform sampling of the SAR signal. This algorithm has also a great potential for systems relying on the displaced phase center (DPC) technique, like the high resolution wide swath (HRWS) SAR or the split antenna approach in the TerraSAR-X and Radarsat II satellites.
Item URL in elib: | https://elib.dlr.de/6154/ | ||||||||||||||||
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Document Type: | Conference or Workshop Item (Paper) | ||||||||||||||||
Additional Information: | LIDO-Berichtsjahr=2004, | ||||||||||||||||
Title: | Bi- and Multi-Static SAR Missions: Potentials and Challenges | ||||||||||||||||
Authors: |
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Date: | 2003 | ||||||||||||||||
Journal or Publication Title: | Proceedings of the ASAR Workshop 2003 | ||||||||||||||||
Refereed publication: | No | ||||||||||||||||
Open Access: | No | ||||||||||||||||
Gold Open Access: | No | ||||||||||||||||
In SCOPUS: | No | ||||||||||||||||
In ISI Web of Science: | No | ||||||||||||||||
Volume: | CD-ROM | ||||||||||||||||
Editors: |
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Status: | Published | ||||||||||||||||
Keywords: | Digital Beamforming, Sparse Aperture SAR, Split Antenna, Nonuniform Sampling, Bistatic SAR, Multistatic SAR, DPCA Reconstruction | ||||||||||||||||
Event Title: | ASAR Workshop | ||||||||||||||||
Event Location: | Saint-Hubert, Quebec, Canada | ||||||||||||||||
Event Type: | international Conference | ||||||||||||||||
Event Start Date: | 25 June 2003 | ||||||||||||||||
Event End Date: | 27 June 2003 | ||||||||||||||||
Organizer: | Canadian Space Agency | ||||||||||||||||
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 | ||||||||||||||||
Deposited By: | Krieger, Dr.-Ing. Gerhard | ||||||||||||||||
Deposited On: | 30 Jan 2006 | ||||||||||||||||
Last Modified: | 24 Apr 2024 18:58 |
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