Rodriguez Cassola, Marc and Krieger, Gerhard and Wendler, Michael (2005) Azimuth-invariant, bistatic airborne SAR processing strategies based on monostatic algorithms. In: Proceedings IGARSS 2005, 2, pp. 1047-1050. IEEE. IGARSS 2005, 2005-07-26, Seoul, South Korea. ISBN 0-7803-9051-2.
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Abstract
Bistatic configurations have awakened a great deal of interest in the recent past among the SAR research community for both airborne and spaceborne sensing. However, bistatic SAR campaigns remain a technical challenge. In this context, current experiments are helping to understand real engineering problems concerning bistatic SAR data acquisitions. In February 2003, DLR and ONERA carried out successfully [1] one of the very first bistatic airborne campaigns. The E-SAR and RAMSES systems were flown in two basic geometrical configurations, both involving parallel flights at the same speed: one defined by along-track acquisitions and the other by across-track acquisitions. These bistatic configurations share with monostatic SAR the invariancy in the along-track dimension, which allows and suggests the using of Doppler domain focussing techniques. This paper puts forward an extension of airborne SAR monostatic focussing algorithms to the azimuth-invariant, bistatic case. A derivation of the point response in range-Doppler domain is presented; the differences between azimuth-invariant, bistatic and monostatic point responses are outlined. Using these results, bistatic focussing solutions based on range-Doppler (RD) [2] and extended chirp scaling (ECS) [3] algorithms are analysed. Particular implementation problems, like Doppler parameter estimation and bistatic motion compensation [4] strategies are also presented. Finally, the algorithms are tested with real data from the DLR-ONERA bistatic airborne campaign.
Item URL in elib: | https://elib.dlr.de/22208/ | ||||||||||||
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Document Type: | Conference or Workshop Item (Speech, Paper) | ||||||||||||
Title: | Azimuth-invariant, bistatic airborne SAR processing strategies based on monostatic algorithms | ||||||||||||
Authors: |
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Date: | 26 July 2005 | ||||||||||||
Journal or Publication Title: | Proceedings IGARSS 2005 | ||||||||||||
Refereed publication: | No | ||||||||||||
Open Access: | No | ||||||||||||
Gold Open Access: | No | ||||||||||||
In SCOPUS: | No | ||||||||||||
In ISI Web of Science: | No | ||||||||||||
Volume: | 2 | ||||||||||||
Page Range: | pp. 1047-1050 | ||||||||||||
Editors: |
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Publisher: | IEEE | ||||||||||||
Series Name: | IEEE IGARSS Proceedings | ||||||||||||
ISBN: | 0-7803-9051-2 | ||||||||||||
Status: | Published | ||||||||||||
Keywords: | Bistatic SAR, bistatic SAR processing, airborne SAR processing, bistatic motion compensation | ||||||||||||
Event Title: | IGARSS 2005 | ||||||||||||
Event Location: | Seoul, South Korea | ||||||||||||
Event Type: | international Conference | ||||||||||||
Event Dates: | 2005-07-26 | ||||||||||||
Organizer: | IEEE | ||||||||||||
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: | Rodriguez Cassola, Marc | ||||||||||||
Deposited On: | 08 Feb 2006 | ||||||||||||
Last Modified: | 27 Apr 2009 04:59 |
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