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Ionosphere Propagation Error Correction for Galileo

Published online by Cambridge University Press:  27 January 2003

P. D. Groves  and
S. J. Harding
P. D. Groves
Affiliation:
QinetiQ, Farnborough
S. J. Harding
Affiliation:
QinetiQ, Farnborough
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Abstract

A theoretical analysis of the effects of dual frequency ionosphere propagation correction on GNSS code tracking noise is presented. The effect on tracking noise of using different combinations of the proposed Galileo signals for ionosphere propagation correction is investigated. It is concluded that, for the open or commercial service user, the Galileo signals E2-L1-E1 near to and around GPS L1 should be used to apply ionosphere propagation corrections to the E5 signals. This produces a tracking noise standard deviation about three times larger than that on an E5 signal alone. An ionosphere correction-smoothing algorithm is presented that reduces the tracking noise on the corrected pseudo-range measurements.

Keywords

GNSSGalileoDesign
Type
Research Article
Information
The Journal of Navigation , Volume 56 , Issue 1 , January 2003 , pp. 45 - 50
Copyright
© 2003 The Royal Institute of Navigation

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