Mitigation of the Ionospheric Range Error in Single-frequency GNSS Applications

C. Mayer, N. Jakowski, J. Beckheinrich, E. Engler

Abstract:	We describe a method which allows to autonomously determine the ionospheric range error using single-frequency GNSS data of a single GNSS receiver. The proposed algorithm is capable of deriving calibrated ionospheric range errors from single-frequency GNSS data. In addition, a model describing the ionosphere in the vicinity of the receiver is provided, along with various statistical quantities. In the context of single-frequency point positioning, e.g., using low-cost GNSS receivers in quasi-static setups, this method is anticipated to provide autonomously determined, near-real-time ionospheric corrections comparable or better than the Klobuchar model. In (civil) aeronautical GBAS systems, which due to certification issues will continue to be restricted to use single-frequency GNSS equipment for some time, this method allows to detect ionospheric perturbations, including ionospheric gradient information.
Published in:	Proceedings of the 21st International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2008) September 16 - 19, 2008 Savannah International Convention Center Savannah, GA
Pages:	2370 - 2376
Cite this article:	Mayer, C., Jakowski, N., Beckheinrich, J., Engler, E., "Mitigation of the Ionospheric Range Error in Single-frequency GNSS Applications," Proceedings of the 21st International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2008), Savannah, GA, September 2008, pp. 2370-2376.
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