Bulletin des sciences géographiques de l'INCT
Volume 5, Numéro 1, Pages 9-13
2001-04-30
L'impact En Geodesie Des Systemes De Radio-navigation Par Satellites Gps Et Glonass
Auteurs : Willis Pascal .
Résumé
Since the very first launches of the GPS satellites, geodesists have tried to make the best use of the capacity of this system for high precision applications. The results obtained improved gradually from centimeter to millimeters, first for local networks and gradually for regional and now worldwide networks. In particular, the establishment of the scientific service IGS (International GPS Service), allowing users to have an easy access to high accuracy GPS orbits has been a key factor of success for obtaining these types of results. The purpose of this paper is to summarize the different steps that were needed to obtain sub-centimeter level of accuracy for GPS positioning and to try to make a few recommendations for the architecture of a new European satellite navigation system: Galileo.
Mots clés
géodésie, localisation, radio-navigation par satellites, GPS, GLONASS, Galileo, IGS
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