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Impact of Galileo on Global Ionosphere Map Estimation

Published online by Cambridge University Press:  06 April 2006

Anh Quan Le
Anh Quan Le
Affiliation:
Delft University of Technology. Email: A.Q.Le@lr.tudelft.nl
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Abstract

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The upcoming GNSS Galileo, with its new satellite geometry and frequency plan, will not only bring many benefits for navigation and positioning but also help to improve ionosphere delay estimation. This paper investigates ionosphere estimation with Galileo and compares it with the results from GPS-only and combined GPS-Galileo. The standard deviation of the Vertical Total Electron Content (VTEC) at a certain location can improve significantly by 40 per cent. Various Galileo configurations are considered to assess the differences in frequency plan and signals to be used. The IGS network, which is involved in producing the current IGS Global Ionosphere Map (GIM) is used in the simulation for more realistic results. A more accurate GIM will in its turn improve navigation and positioning performance.

Keywords

GPSGalileoIonosphereDesign Computation
Type
Research Article
Information
The Journal of Navigation , Volume 59 , Issue 2 , May 2006 , pp. 281 - 292
Copyright
2006 The Royal Institute of Navigation