Operational Benefits Using Ground Based Regional Augmentation System

Gunnar Frisk

Abstract:	The Air Traffic System stands in front of a possible revo- lution, since the implementation of a new CNS/ATM Sys- tem (Communication, Navigation and Surveillance/Air Traffic Management) has became very urgent. Today’s CNS/ATM System is reaching its’ limits and capacity demands are increasing steadily. Delays are increasing and passenger frustration too. Historically, evolution of the CNS/ATM System has been done through mandating and squeezing existing systems, technologies and procedures, roughly speaking. We are now facing a change that require new concepts, technolo- gies and procedures on one hand, and proven operational benefits for the users on the other. To combine these with the urgency of the change is a challenge. This paper discuss one important piece of the Future CNS/ATM System, satellite navigation (GNSS). In spe- cific, the paper discuss the Ground Based Regional Aug- mentation System and how that fits in to the ATM System and how it provide benefits to the users. The paper also discuss related surveillance and communication functions and how those interrelate to the navigation piece. Different applications are discussed including the use of Airborne Separation Assurance (ASAS), together with Automatic Dependent Surveillance Broadcast (ADS-B), an enabler for more efficient and safer ATM. The paper will have a focus on the European situation, al- though parallels to US situation is and can be made in most cases. This paper in not describing GRAS in technical detail. Several other papers have been presented about this, and comprehensive references are provided. The paper is written so that readers with limited insight into the specifics of aviation and Air Transport also should be able to follow the discussions. A list of abbre- viations is provided at the end of the paper.
Published in:	Proceedings of the 13th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 2000) September 19 - 22, 2000 Salt Palace Convention Center Salt Lake City, UT
Pages:	753 - 765
Cite this article:	Frisk, Gunnar, "Operational Benefits Using Ground Based Regional Augmentation System," Proceedings of the 13th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 2000), Salt Lake City, UT, September 2000, pp. 753-765.
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