Overbounding Position Errors in the Presence of Carrier Phase Multipath Error Model Uncertainty

S. Khanafseh, S. Langel, B. Pervan

Abstract:	In this paper, a methodology is developed to overbound the error in position estimation for carrier phase navigation systems subject to multipath error mis-modeling. In high accuracy and high integrity applications, carrier phase positioning systems with cycle resolution usually rely on timefiltering, in many cases using Kalman filters. Naturally, for a computed integrity risk to be meaningful, it must be guaranteed that the predicted state estimation error covariance always bounds the true covariance. The Kalman filter ensures state error covariance bounding provided that the measurement errors and system dynamics are accurately modeled. However, uncertainties in the dynamic model of the multipath error states always exist. In response, the focus of this work is to quantify and bound position estimate errors subject to uncertainties associated with the time correlation of multipath error.
Published in:	Proceedings of IEEE/ION PLANS 2010 May 4 - 6, 2010 Renaissance Esmeralda Resort & Spa Indian Wells, CA
Pages:	575 - 584
Cite this article:	Khanafseh, S., Langel, S., Pervan, B., "Overbounding Position Errors in the Presence of Carrier Phase Multipath Error Model Uncertainty," Proceedings of IEEE/ION PLANS 2010, Indian Wells, CA, May 2010, pp. 575-584. https://doi.org/10.1109/PLANS.2010.5507313
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