New Developments and Policy Implications of Evolving Satellite Navigation Technology

Peter M. Brodie

Abstract:	GPS has developed into a global navigation utility, which now serves both the civil and military communities. The needs of both communities are growing and their requirements are outstripping the capabilities of the current system. A 1996 Presidential Decision Directive addressed the issue of modernizing GPS for military and civil users to meet these developing needs. Currently, the military plans to add a new GPS signal. At the same time, the addition of two new civil signals has been announced to add robustness and improve accuracy. Over time, GPS requirements can be expected to continue to evolve. We suggest that the spacecraft’s navigation payload be a flexible one which can be reprogrammed in both software and hardware function. Furthermore, we suggest that this navigation payload be acquired independently from the spacecraft. This will give the best flexibility for future needs while providing significant leverage for GPS dollars invested.
Published in:	Proceedings of the 2000 National Technical Meeting of The Institute of Navigation January 26 - 28, 2000 Pacific Hotel Disneyland Anaheim, CA
Pages:	189 - 193
Cite this article:	Brodie, Peter M., "New Developments and Policy Implications of Evolving Satellite Navigation Technology," Proceedings of the 2000 National Technical Meeting of The Institute of Navigation, Anaheim, CA, January 2000, pp. 189-193.
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