Development and Evaluation of Airborne Multipath Error Bounds for L1-L5

Juan Blanch, Todd Walter, R. Eric Phelts

Peer Reviewed

Abstract:	Current aviation standards define a multipath error model that is valid after the smoothing filter is assumed to have converged (assuming a 100 s Hatch filter). The draft standards for dual frequency Satellite-based Augmentation Systems further specify an error model when the code has not been smoothed, and it is defined as a multiple of the converged value. In this paper, multipath and noise error bounds are derived as a function of smoothing time assuming a first order model for the code multipath and the receiver noise. These error bounds are evaluated using GPS and Galileo measurements collected in flight. The derived model appears to account well for the error reduction as a function of smoothing time.
Published in:	Proceedings of the 2019 International Technical Meeting of The Institute of Navigation January 28 - 31, 2019 Hyatt Regency Reston Reston, Virginia
Pages:	53 - 61
Cite this article:	Blanch, Juan, Walter, Todd, Phelts, R. Eric, "Development and Evaluation of Airborne Multipath Error Bounds for L1-L5," Proceedings of the 2019 International Technical Meeting of The Institute of Navigation, Reston, Virginia, January 2019, pp. 53-61. https://doi.org/10.33012/2019.16735
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