Use of Multiple Reference GNSS Stations for RTK Positioning

Gérard Lachapelle, M. Elizabeth Cannon, Luiz Paulo Fortes and Paulo Alves

Abstract:	The accuracy performance of carrier phase based realtime kinematic (RTK) DGPS positioning depends on the ability of the algorithms and software to resolve the integer ambiguities and to model the differential errors that occur between the reference station(s) and the remote. The use of a network of reference stations is effective in enhancing the solution to both problems. An effective method called "NetAdjust" developed and tested at the University of Calgary during the past few years is reviewed. The use of this approach increases the minimum distance requirement between reference stations and remote through effective modeling of the differential errors, which are dominated by the ionospheric and tropospheric errors. The effectiveness of the method is demonstrated through a field test conducted in the St.Lawrence River region, Canada, to assess its viability for 3D marine navigation in constricted waterways.
Published in:	Proceedings of the IAIN World Congress and the 56th Annual Meeting of The Institute of Navigation (2000) June 26 - 28, 2000 The Catamaran Resort Hotel San Diego, CA
Pages:	803 - 809
Cite this article:	Lachapelle, Gérard, Cannon, M. Elizabeth, Fortes, Luiz Paulo, Alves, Paulo, "Use of Multiple Reference GNSS Stations for RTK Positioning," Proceedings of the IAIN World Congress and the 56th Annual Meeting of The Institute of Navigation (2000), San Diego, CA, June 2000, pp. 803-809.
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