A Range-Domain Measurement Model for Improved Weak-Signal Tracking in Terrestrial Pseudoranging

Adrian Fleidl, Okuary Osechas, Michael Meurer

Abstract:	In this paper we propose a range-domain processing method that improves weak-signal tracking for LDACS. The objective is to improve existing LDACS receiver algorithms towards a more robust computation of navigation observables at no loss in accuracy. Evaluating real flight data from the results of the ALPS project further supports previous claims that LDACS-based navigation will enable RNP 0.3 based on terrestrial ranging. In addition to the improved processing we propose a way of discriminating nominal and faulted measurements. With this screening method we produce the first-ever LDACS-based ranging data set made up of fault-free measurements. Finally, we compute an overbounding Gaussian error model, with a sigma ?? < 30 m, based on 102 million data samples.
Published in:	Proceedings of the 34th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2021) September 20 - 24, 2021 Union Station Hotel St. Louis, Missouri
Pages:	3335 - 3349
Cite this article:	Fleidl, Adrian, Osechas, Okuary, Meurer, Michael, "A Range-Domain Measurement Model for Improved Weak-Signal Tracking in Terrestrial Pseudoranging," Proceedings of the 34th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2021), St. Louis, Missouri, September 2021, pp. 3335-3349. https://doi.org/10.33012/2021.18102
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