Title
Autonomous Satellite State Determination By Use Of Two-Directional Links
Abstract
The European Commission recently announced the development of a new satellite navigation system called 'Galileo'. It shall be a system compatible with GPS but shall have an improved performance compared to existing systems, Results of a study under a contract of the European Space Agency (ESA) with respect to achievable improvements of ephemeris and clock state determination as well as of integrity by use of intersatellite links and board-autonomous measurements to ground reference stations are presented. Simulation and analyses for two different aspects were performed. The first aspect was the determination of the satellite state using intersatellite links and a conventional ground network, In the second aspect, additional two-way ground-referenced links were added and the performance analysis was repeated for such a configuration with emphasis on autonomous measurements on board the satellites. The simulations were performed for a global GEO/IGSO and a global GEO/LEO satellite constellation, but we expect that the main results are similarly applicable to the GEO/MEO or MEO constellation, which is suggested to be used with Galileo, With respect to the integrity performance, the MEO constellation was analysed separately. Copyright (C) 2000 John Wiley & Sons, Ltd.
Year
DOI
Venue
2000
10.1002/1099-1247(200007/10)18:4/5<325::AID-SAT680>3.0.CO;2-8
INTERNATIONAL JOURNAL OF SATELLITE COMMUNICATIONS
Keywords
Field
DocType
autonavigation, intersatellite links, ephemeris determination, integrity, satellite state vector, Galileo
Ephemeris,Galileo (satellite navigation),Satellite,Telecommunications,Satellite navigation,Remote sensing,Global Positioning System,Engineering
Journal
Volume
Issue
ISSN
18
4-5
0737-2884
Citations 
PageRank 
References 
4
1.40
1
Authors
7
Name
Order
Citations
PageRank
Bernd Eissfeller141.74
T. Zink241.40
R. Wolf3555.63
J. Hammesfahr441.40
Achim Hornbostel541.74
J. H. Hahn652.93
Tavella, P.7104.87