GNSS Precise Signal interoperability Solutions for State Aircraft within Single European Sky Master Plan

Pascal Barret

Abstract:	Positioning and timing are already crucial variables in ATM. GNSS provides both parameters, which will be used more and more in different functions to regulate and expedite air traffic. In airspace with reduced navigation and surveillance infrastructure, GNSS already allows air operations which are not feasible with conventional navaids. The economic pressure for more and more integrated airspace and efficient management at the lowest possible cost will strengthen GNSS’s role as a major enabler for ATM, as already envisaged in a number of major ATM modernisation programmes, such as NextGen (US) or SESAR (Europe). In the next 15 years, GNSS will evolve considerably, as new constellations, services and frequencies are added. The military community pioneered GNSS air navigation and began using it before civil aviation, which has since considerably developed GNSS safety requirements, rendering the use of the GPS PPS in civil controlled airspace questionable. As the baseline for navigation, by 2020 and beyond, Europe requires aircraft to have access to a minimum of two dual-frequency satellite constellations [1]. It is assumed that, alongside GPS, Galileo will be the second such constellation. Given that a majority of State aircraft are already using the GPS PPS, it would appear legitimate to envisage the Galileo Public Regulated Service (PRS) as the complement for the European military community. Considering the emerging new GNSS governmental services (GPS M-Code and Galileo PRS) and the SESAR programme, there is now a real opportunity to lay new foundations in GNSS use by State aircraft, providing full interoperability with civil aviation.
Published in:	Proceedings of the 24th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2011) September 20 - 23, 2011 Oregon Convention Center, Portland, Oregon Portland, OR
Pages:	1866 - 1869
Cite this article:	Barret, Pascal, "GNSS Precise Signal interoperability Solutions for State Aircraft within Single European Sky Master Plan," Proceedings of the 24th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2011), Portland, OR, September 2011, pp. 1866-1869.
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