Interoperability Between Satellite-based Augmentation Systems (SBASs)

James P. Fernow, Daniel O'Laughlin, T. Thomas Hsiao, James Reagan

Abstract:	Work is underway on building at least three Satellite-based Augmentation Systems (SBASs) to GPS: the U.S. FAA’s Wide-Area Augmentation System (WAAS), the European Geostationary Navigation Overlay System (EGNOS), and the Japan Civil Aviation Bureau’s MTSAT-Satellite Augmentation System (MSAS). One of the goals for these SBASs is interoperability, but the term “interoperability” is not clearly defined. This paper describes different meanings that could be ascribed to the term. The principal types of interoperability are being assured by the activities of International Civil Aviation Organization (ICAO) Global Navigation Satellite System Panel (GNSSP) and RTCA. This paper discusses the feasibility and desirability of achieving other types of interoperability and what achieving them would require. As examples, the availability of service for en route flight over selected points in the western Atlantic is compared for different levels of interoperability between WAAS and EGNOS. Plots of normalized ranging error to the Inmarsat 3 Atlantic Ocean Region East (AORE) satellite are shown as a function of user location for different types of interoperability.
Published in:	Proceedings of the 53rd Annual Meeting of The Institute of Navigation (1997) June 30 - 2, 1997 Albuquerque, NM
Pages:	473 - 482
Cite this article:	Fernow, James P., O'Laughlin, Daniel, Hsiao, T. Thomas, Reagan, James, "Interoperability Between Satellite-based Augmentation Systems (SBASs)," Proceedings of the 53rd Annual Meeting of The Institute of Navigation (1997), Albuquerque, NM, June 1997, pp. 473-482.
Full Paper:	ION Members/Non-Members: 1 Download Credit Sign In