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Proceedings Paper

TerraSAR-L system
Author(s): David M. Simpson; Geoff T. A. Burbidge; Alan Thornbury; Barbara Ghinelli
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Paper Abstract

The Infoterra/TerraSAR initiative started as an industrial concept to provide X- and L-band SAR data products from a pair of spacecraft in Sun-synchronous orbit. The mission was proposed by the BNSC and DLR for implementation as an element of the ESA’s Earth Watch programme. The X-band element evolved into a German national programme between DLR and Astrium GmbH, whereas the TerraSAR-L System has become the subject of a phase B consolidation study led by Astrium Ltd. in the UK and involves companies in several other ESA member states. The TerraSAR-L System comprises a single spacecraft carrying a large, fully polarimetric L-band SAR, and a ground segment architecture that will re-use existing facilities and technologies as much as possible. The service segment, sized to meet the mission’s requirements, complements this. Besides having a commercial role for the provision of geoinformation products, the TerraSAR-L System will serve the scientific user community, particularly with regard to Earth science use, and for contributions to the GMES initiative. Specification of the L-SAR instrument and ground segment performances has been guided by careful analysis of the product requirements so as to meet the user communities’ needs without over-design of the hardware. Extensive trade-off studies have proven that the L-band spacecraft should adopt the innovative 'Snapdragon’ configuration, minimizing technical risk and cost whilst offering comfortable design margins. The TerraSAR Consolidation has commenced and will involve a wide industrial community in the specification and definition for the TerraSAR-L System. Key instrument and Snapdragon risk reduction activities are well advanced under ESA contract, with completion expected in 2004.

Paper Details

Date Published: 12 January 2004
PDF: 10 pages
Proc. SPIE 5236, SAR Image Analysis, Modeling, and Techniques VI, (12 January 2004); doi: 10.1117/12.511115
Show Author Affiliations
David M. Simpson, Astrium, Ltd. (United Kingdom)
Geoff T. A. Burbidge, Astrium, Ltd. (United Kingdom)
Alan Thornbury, Astrium, Ltd. (United Kingdom)
Barbara Ghinelli, Astrium, Ltd. (United Kingdom)


Published in SPIE Proceedings Vol. 5236:
SAR Image Analysis, Modeling, and Techniques VI
Francesco Posa, Editor(s)

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