Computer Science – Performance
Scientific paper
Jul 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002esasp.509e...7l&link_type=abstract
In: Proceedings of DASIA 2002, 13 - 16 May 2002, Dublin, Ireland. Ed.: R. A. Harris. ESA SP-509, Noordwijk, Netherlands: ESA Pub
Computer Science
Performance
Space Research: Computing, Software, Galileo, Integrity, Navigation, Flexibele, Generator, Security, Erc32
Scientific paper
The pre-development of a Navigation Signal Generator for Galileo has been a challenge and will continue to be. The signal generator is a key unit within the navigation system since its performance is essential. The unit also has to manage different services and assemble the Navigation Message, that shall be modulated on the navigation signals. This unit shall be developed for a system in strong evolution with many participants in the definition process. The need to perform the development in parallel to the final system definition has made flexibility to key issue. Potentially being a drawback for an effective design, this has turned out to be an advantage since the evolution of the system in terms of data formats and services will continue. It is not unlikely that modifications in some data services will appear several years after launching the constellation. The pre-development includes both hardware and a complete application software. The Signal Generator design and some of its key functions are described in more detail.
Kaufmann Roland
Kurvin Charles
Lindqvist Per-Olof
Löw Andreas
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