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Proceedings Paper

Precision Processing Of European ERS-1 SAR Data With High Throughput
Author(s): J Gredel; W Markwitz; W Noack; G. Schreier
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Paper Abstract

The European Space Agency (ESA) will launch the first European remote sensing satellite ERS-1 with a Synthetic Aperture Radar (SAR) in September 1990. The German Remote Sensing Data Center of the German Aerospace Research Establishment DLR is presently implementing under ESA contract a SAR data processing facility that will process ERS-1 SAR data with high precision and high throughput. The design of this facility is based on the most recent technology and can be characterized as follows. The SAR processing facility is implemented as distributed processing system utilizing powerful UNIX based workstations, all attached to a high performance, vendor-independent local area network, high speed array processors for signal processing, large solid-state memories as data buffers for near real-time processing and optical disk for the archival and distribution of data. Important algorithmic and software aspects are the use of modified Range/Doppler algorithm for the generation at radiometrically accurate digital SAR images, the use of digital elevation models for the precise geometric registration of SAR images over land and their presentation in different map pro-jections, and the use of Ada as programming language for most new software developments. 'A centralized data. and facility management is being implemented, using commercial relational database management software for cataloguing and order handling, and applying knowledge engineering software for adaptive scheduling. This paper presents the German ERS-1 SAR data processing facility in terms of hardware and software and briefly describes the products that will be generated.

Paper Details

Date Published: 25 July 1989
PDF: 12 pages
Proc. SPIE 1070, Reconnaissance, Astronomy, Remote Sensing and Photogrammetry, (25 July 1989); doi: 10.1117/12.952493
Show Author Affiliations
J Gredel, DLR WT-DA (Germany)
W Markwitz, DLR WT-DA (Germany)
W Noack, D L R WT-DA (Germany)
G. Schreier, DLR WT-DA (Germany)

Published in SPIE Proceedings Vol. 1070:
Reconnaissance, Astronomy, Remote Sensing and Photogrammetry
Irving Hirschberg, Editor(s)

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