A DGPS/GLONASS Positioning Solution for Geographic Locations with High Ionospheric Variability

M. O. Mathewson, A. Rinnan and T. Schwenke

Abstract:	In March 2000, a multi-reference DGPS/GLONASS positioning system was tested in Brazil during multiple ionospheric events. Data was collected from (1) a DGPS receiver using only one correction signal, (2) a DGPS receiver using ionospheric-free corrections from an L1/L2 reference station, and (3) a multi-reference DGPS/GLONASS positioning system using corrections from multiple reference stations. The results indicate that position accuracy can degrade to 10 meters (95% CEP) during periods of high ionospheric variability. A solution that uses the GLONASS constellation, as well as, DGPS corrections from multiple reference stations can achieve accuracies of 0.5 meters (95% CEP) during the same ionospheric events.
Published in:	Proceedings of the 13th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 2000) September 19 - 22, 2000 Salt Palace Convention Center Salt Lake City, UT
Pages:	1461 - 1466
Cite this article:	Mathewson, M. O., Rinnan, A., Schwenke, T., "A DGPS/GLONASS Positioning Solution for Geographic Locations with High Ionospheric Variability," Proceedings of the 13th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 2000), Salt Lake City, UT, September 2000, pp. 1461-1466.
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