A Concept for GNSS2 : Improving Accuracy and Availability for Better Addressing Mass Market

J.M. Pieplu, N. Marchal, B. Christophe, D. Hill, N. Niklasch

Abstract:	An attractive concept for a second generation GNSS (GNSS2) would be to implement a satellite navigation system which could further expand the already growing mass market for navigation. Such a GNSS 2 system, besides being under civil control, should go further than the GNSS 1 capabilities and offer improved accuracy and availability to users operating in very demanding environments. This paper evaluates the potential markets for GNSS2 and presents typical requirements for land users, before exploring and analysing various technical concepts for improving accuracy and availability of the satellite navigation service. The results of a system analysis of the User Range Errors that could be expected in the frame of a GNSS 2 system are presented. In order to evaluate the accuracy and availability performance of such a system, simulations were conducted to analyse the performance of candidate constellations offering global and/or regional coverage. In particular, and after properly defining accuracy and availability figures, the behaviour of the service within high masking angle conditions is carefully addressed. Possible architecture solutions for GNSS2 are presented, and the key technical issues are discussed.
Published in:	Proceedings of the 9th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1996) September 17 - 20, 1996 Kansas City, MO
Pages:	1511 - 1519
Cite this article:	Pieplu, J.M., Marchal, N., Christophe, B., Hill, D., Niklasch, N., "A Concept for GNSS2 : Improving Accuracy and Availability for Better Addressing Mass Market," Proceedings of the 9th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1996), Kansas City, MO, September 1996, pp. 1511-1519.
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