Performance of GNSS2 Navigation Signal and Instrumentation Application to Urban Users

B. Lobert and C.Bourga

Abstract:	Definition of the future navigation system, i.e. GNSS2, strongly relies on the signal design and the associated in-strumentation. On one hand, aeronautical applications require high posi-tioning performance in terms of accuracy, continuity and integrity (CAT 1 to 3). On the other hand, the navigation market clearly shows the importance of urban users, which can have a critical impact on the system design. The urban environment, characterized by high masking angles and local hybridization (clocks, odometers, al-timeters), may turn out to be crucial in order not to over-size the space segment. Furthermore, multipath is gener-ally one of the most important contributors to the error budget and must be precisely characterized to take as much as possible into account user needs and to optimize the specifications of the navigation signal. This paper analyzes the impact of the urban application requirements on the space segment and compares two types of augmentations.
Published in:	Proceedings of the 2000 National Technical Meeting of The Institute of Navigation January 26 - 28, 2000 Pacific Hotel Disneyland Anaheim, CA
Pages:	181 - 188
Cite this article:	Lobert, B., C.Bourga,, "Performance of GNSS2 Navigation Signal and Instrumentation Application to Urban Users," Proceedings of the 2000 National Technical Meeting of The Institute of Navigation, Anaheim, CA, January 2000, pp. 181-188.
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