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Bistatic TerraSAR-X/F-SAR Spaceborne-Airborne SAR Experiment: Description, Data Processing and Results

Rodriguez Cassola, Marc and Baumgartner, Stefan and Krieger, Gerhard and Moreira, Alberto (2010) Bistatic TerraSAR-X/F-SAR Spaceborne-Airborne SAR Experiment: Description, Data Processing and Results. IEEE Transactions on Geoscience and Remote Sensing, 48 (2), pp. 781-794. IEEE Geoscience and Remote Sensing Society. DOI: 10.1109/TGRS.2009.2029984.

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We report about the first X-band spaceborne-airborne bistatic SAR experiment, using the German satellite TerraSAR-X as transmitter and DLR's new airborne radar system F-SAR as receiver. The data were acquired early November 2007. The importance of the experiment is not only due to its pioneering character, but also due to its potential to serve as a test-bed for the validation of non-stationary bistatic acquisition procedures, novel calibration and synchronisation algorithms, and advanced imaging techniques, as required for future non-synchronised bistatic SAR missions. High-resolution bistatic imaging requires in general a perfect synchronisation of the radar systems, which in the present case is achieved by evaluating the range histories of several reference targets. After synchronisation, non-stationary focussing is performed using a bistatic backprojection approach. Benefiting from the flexibility of both acquisition systems, stand-alone TerraSAR-X monostatic as well as interoperated TerraSAR-X/F-SAR bistatic data sets have been recorded; the simultaneous availability of monostatic and bistatic images will help to understand their similarities and differences. As expected, the bistatic image shows a space-variant behaviour in spatial resolution and signal-to-noise ratio; both outperform their monostatic counterparts in almost the complete imaged scene. A detailed comparison between the monostatic and bistatic images is given, illustrating the complementarity of both measurements in terms of available backscattered energy and Doppler information.

Document Type:Article
Additional Information:�©2010 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:Bistatic TerraSAR-X/F-SAR Spaceborne-Airborne SAR Experiment: Description, Data Processing and Results
AuthorsInstitution or Email of Authors
Rodriguez Cassola, MarcUNSPECIFIED
Baumgartner, StefanUNSPECIFIED
Krieger, GerhardUNSPECIFIED
Moreira, AlbertoUNSPECIFIED
Date:20 January 2010
Journal or Publication Title:IEEE Transactions on Geoscience and Remote Sensing
Refereed publication:Yes
In Open Access:No
In ISI Web of Science:Yes
Page Range:pp. 781-794
Publisher:IEEE Geoscience and Remote Sensing Society
Keywords:Bistatic SAR, Hybrid bistatic SAR experiment, TerraSAR-X, Bistatic SAR processing, Synchronisation
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 > Radar Concepts
Deposited By: Marc Rodriguez Cassola
Deposited On:27 Mar 2009
Last Modified:12 Dec 2013 20:32

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