Study of Pseudo-Range Error Due to Non-Line-of-Sight-Multipath in Urban Canyons

Rudy Ercek, Philippe De Doncker and Francis Grenez

Abstract:	Different components of NLOS-Multipath are studied in an urban canyon model. First, in order to detect the single reflected ray case in our model, an original ray tracing method is presented. By using a power threshold, the probability to track a single reflected ray and the associated maximum Pseudo-Range (PR) bias error are computed. Extrapolations are carried out in order to study the influence of the distance from the receiver to the reflected wall on this probability and the associated error. Secondly, the diffraction effects are analyzed when no direct ray is present and no reflected rays are considered in this case. The Uniform Theory of Diffraction (UTD) is used in order to determine the diffracted rays which could be tracked by the receiver and the associated maximal PR bias error.
Published in:	Proceedings of the 18th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2005) September 13 - 16, 2005 Long Beach Convention Center Long Beach, CA
Pages:	1083 - 1094
Cite this article:	Ercek, Rudy, De Doncker, Philippe, Grenez, Francis, "Study of Pseudo-Range Error Due to Non-Line-of-Sight-Multipath in Urban Canyons," Proceedings of the 18th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2005), Long Beach, CA, September 2005, pp. 1083-1094.
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