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

Rodriguez Cassola, Marc and Baumgartner, Stefan and Nottensteiner, Anton and Horn, Ralf and Schwerdt, Marco and Prats, Pau and Fischer, Jens and Steinbrecher, Ulrich and Metzig, Robert and Limbach, Markus and Krieger, Gerhard and Moreira, Alberto (2008) Bistatic Spaceborne-Airborne Experiment TerraSAR-X/F-SAR: Data Processing and Results. In: Proceedings of the IEEE Geoscience and Remote Sensing Symposium (IGARSS), p. 4. IEEE Geoscience and Remote Sensing Society. IEEE Geoscience and Remote Sensing Symposium (IGARSS), 2008-07-06 - 2008-07-11, Boston, Massachusetts, USA.

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Following an original proposal by the authors to the TerraSAR-X (TSX) scientific coordination board, a spaceborne-airborne bistatic experiment was successfully performed early November 2007. TSX was used as transmitter and DLR's new airborne radar system, F-SAR, as receiver; due to the capability of the latter to acquire data quasi-continuously, no echo window synchronisation is needed. Monostatic data were also recorded during the acquisition. This paper includes description and results of the spaceborne-airborne bistatic experiment, with special focus on data processing and image comparison. Given the acquisition scenario, with two-channel sampling and transmitter and receiver clocks operating independently, data processing must necessarily follow a three-step strategy: 1) channel balancing, 2) data synchronisation and 3) bistatic SAR processing. Since neither absolute range nor Doppler references are available in the bistatic data set, synchronisation is done with the help of calibration targets on ground and based on the analysis of the acquired data compared to expected data. Due to the variant nature of the bistatic acquisition and the required precision for the processing, data are processed using a bistatic backprojection approach.

Document Type:Conference or Workshop Item (Speech, Paper)
Additional Information:©2008 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 Spaceborne-Airborne Experiment TerraSAR-X/F-SAR: Data Processing and Results
AuthorsInstitution or Email of Authors
Rodriguez Cassola, MarcUNSPECIFIED
Baumgartner, StefanUNSPECIFIED
Nottensteiner, AntonUNSPECIFIED
Schwerdt, MarcoUNSPECIFIED
Steinbrecher, UlrichUNSPECIFIED
Limbach, MarkusUNSPECIFIED
Krieger, GerhardUNSPECIFIED
Moreira, AlbertoUNSPECIFIED
Date:July 2008
Journal or Publication Title:Proceedings of the IEEE Geoscience and Remote Sensing Symposium (IGARSS)
Refereed publication:No
In ISI Web of Science:No
Page Range:p. 4
Publisher:IEEE Geoscience and Remote Sensing Society
Keywords:Bistatic SAR, bistatic SAR processing, spaceborne-airborne SAR processing, bistatic motion compensation
Event Title:IEEE Geoscience and Remote Sensing Symposium (IGARSS)
Event Location:Boston, Massachusetts, USA
Event Type:international Conference
Event Dates:2008-07-06 - 2008-07-11
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
Microwaves and Radar Institute
Microwaves and Radar Institute > Spaceborne SAR Systems
Microwaves and Radar Institute > SAR Technology
Deposited By: Marc Rodriguez Cassola
Deposited On:15 Dec 2008
Last Modified:12 Dec 2013 20:32

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