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Real-time differential GPS/GLONASS trials in Europe using all-in-view 20-channel receivers

Published online by Cambridge University Press:  23 November 2009

S. Capaccio ,
D. Lowe ,
D. M. A. Walsh  and
P. Daly
S. Capaccio
Affiliation:
(CAA Institute of Satellite Navigation, The University of Leeds)
D. Lowe
Affiliation:
(CAA Institute of Satellite Navigation, The University of Leeds)
D. M. A. Walsh
Affiliation:
(CAA Institute of Satellite Navigation, The University of Leeds)
P. Daly
Affiliation:
(CAA Institute of Satellite Navigation, The University of Leeds)
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Extract

Following the initial development of 20-channel, all-in-view Global Navigation Satellite System (GNSS), GPS/GLONASS/Inmarsat-3, receivers at the Institute of Satellite Navigation (ISN), University of Leeds, a modification programme has been undertaken to allow real-time differential corrections to be sent from one 20-channel receiver to another identical receiver using a serial link between them. The differential correction software incorporates the RTCM SC-104 and RTCA DO-217 format developed specifically for GPS and adjusted by the ISN to allow simultaneous GLONASS operation.

After successful laboratory testing, real-time differential GNSS tests were successfully completed in static mode between Aberdeen and Leeds via the SkyFix differential data-link, and in dynamic mode at DTEO Boscombe Down using a C-band data-link between the ground and a receiver on board the DRA BAC 1–11 aircraft. The aims of the tests were, (i) to demonstrate real-time differential GNSS position-fixing, (ii) to establish the accuracy improvements brought about, and (iii) to examine the effects of data-link latency and satellite PDOP on the solution accuracy.

Keywords

1. Satellite navigation.2. Differential systems.3. GNSS.
Type
Research Article
Information
The Journal of Navigation , Volume 50 , Issue 2 , May 1997 , pp. 193 - 208
Copyright
Copyright © The Royal Institute of Navigation 1997

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References

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