DEVELOPMENT AND TESTING OF A KINEMATIC CARRIER-PHASE AMBIGUITY RESOLUTION METHOD USING A REFERENCE RECEIVER NETWORK

John Raquet and Gerard Lachapelle

Peer Reviewed

Abstract:	There is currently great interest in using regional-area reference receiver networks to perform precise positioning using GPS carrier-phase measurements. The NetAdjust algorithm described herein uses a network of reference receivers to significantly increase the distance over which kinematic carrier-phase ambiguity resolution can be performed. When using this algorithm, information from the reference receiver network is encapsulated into the measurements from a single reference receiver so that standard ambiguity resolution techniques can be used between that reference receiver and a mobile receiver. The NetAdjust method is applied to a 400 km 600 km network of 11 reference stations positioned throughout Norway. The NetAdjust algorithm yielded significant reductions in differential errors, and it improved positioning performance. Most important, NetAdjust demonstrated a significant improvement in the ability to resolve widelane carrier-phase integer ambiguities and a modest improvement in the ability to resolve L1 ambiguities. Results are presented for a number of different network configurations.
Published in:	NAVIGATION: Journal of the Institute of Navigation, Volume 46, Number 4
Pages:	283 - 296
Cite this article:	Raquet, John, Lachapelle, Gerard, "DEVELOPMENT AND TESTING OF A KINEMATIC CARRIER-PHASE AMBIGUITY RESOLUTION METHOD USING A REFERENCE RECEIVER NETWORK", NAVIGATION: Journal of The Institute of Navigation, Vol. 46, No. 4, Winter 1999-2000, pp. 283-296.
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