Extrawidelaning for On the Fly Ambiguity Resolution: Simulation of Multipath Effects

Hasanuddin Z. Abidin

Abstract:	‘On the fly’ ambiguity resolution is the key to precise (cm-level accuracy) real-time GPS kinematic positioning. One technique which seems to have promise in this case is extrawidelaning, based on various combinations of dual-frequency GPS signals. This technique, however, is prone to pseudorange noise, ionospheric delay, and multipath. In this paper, the effects of multipath on extrawidelaning for ‘on the fly’ ambiguity resolution is investigated. Actual dual-frequency static differential GPS data contaminated by multipath and simulated GPS data with simulated multipath were used in a controlled test. The concepts involved are explained and the results are presented and discussed. Finally, conclusions based on the results are made and recommendations for future studies are given.
Published in:	Proceedings of the 3rd International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1990) September 19 - 21, 1990 The Broadmoor Hotel Colorado Spring, CO
Pages:	525 - 533
Cite this article:	Abidin, Hasanuddin Z., "Extrawidelaning for On the Fly Ambiguity Resolution: Simulation of Multipath Effects," Proceedings of the 3rd International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1990), Colorado Spring, CO, September 1990, pp. 525-533.
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