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ONERA-DLR bistatic SAR campaign:Planning, data acquisition, and first analysis of bistatic scattering behavior of natural and urban targets

Dubois-Fernandez, Pascale and Cantalloube, Hubert and Vaizan, Bernard and Krieger, Gerhard and Horn, Ralf and Wendler, Michael and Giroux, Vincent (2004) ONERA-DLR bistatic SAR campaign:Planning, data acquisition, and first analysis of bistatic scattering behavior of natural and urban targets. IEE Proceedings - Radar, Sonar and Navigation, 153 (3), pp. 214-223. IEE. DOI: 10.1049/ip-rsn:20045117. ISSN Print: 1350-2395; Online: 1359-7086.

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Abstract

Bistatic configuration is an attractive concept for spaceborne and airborne SAR missions when distributed radars are necessary as for example in the case of interferometric applications. The first reason is the important cost reduction achieved over the multiple radar elements, by having only one transmitter (expensive part) and multiple receivers. The most promising applications are single-pass interferometry with a large baseline and target or surface characterisation from bistatic scattering signature analysis. In a defence context, the improved stealth associated with the receive-only component can provide a wider operational capability. In order to explore the potentials and technical challenges associated with bistatic radar, DLR and ONERA have conducted a joint bistatic airborne radar experiment involving both their SAR systems E-SAR and RAMSES between October 2002 and February 2003. Two main geometrical configurations were flown to explore different scientific and technical objectives. In the first geometrical configuration, the quasi-monostatic mode, the two planes were flying very close to each other to acquire interferometric data in a single-pass cross-platform configuration with large interferometric baselines. The second geometrical configuration was designed to acquire images with a large bistatic angle. The two planes were flying on parallel tracks around 2 km apart, at about the same altitude, with the antennas pointing at the same area on the ground. The authors describe this research programme, including the preparation phase, the analysis of the technological challenges that had to be solved before the acquisition, the strategy adopted for bistatic image processing, the first results and a preliminary analysis of the acquired images.

Document Type:Article
Title:ONERA-DLR bistatic SAR campaign:Planning, data acquisition, and first analysis of bistatic scattering behavior of natural and urban targets
Authors:
AuthorsInstitution or Email of Authors
Dubois-Fernandez, PascaleONERA
Cantalloube, HubertONERA
Vaizan, BernardONERA
Krieger, GerhardUNSPECIFIED
Horn, RalfUNSPECIFIED
Wendler, MichaelUNSPECIFIED
Giroux, VincentONERA
Date:2004
Journal or Publication Title:IEE Proceedings - Radar, Sonar and Navigation
Refereed publication:Yes
In ISI Web of Science:Yes
Volume:153
DOI:10.1049/ip-rsn:20045117
Page Range:pp. 214-223
Publisher:IEE
ISSN:Print: 1350-2395; Online: 1359-7086
Status:Published
Keywords: bistatic SAR, bistatic airborne SAR experiment, bistatic scattering
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
Microwaves and Radar Institute > SAR Technology
Deposited By: Dr.-Ing. Gerhard Krieger
Deposited On:01 Dec 2006
Last Modified:14 Jan 2010 20:30

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