Performance Requirements for the Coast Guard's Differential GPS Service

Paul M. Creamer, Douglas H. Alsip and John P. Radziszewski

Abstract:	The U.S. Coast Guard is responsible for design, procure- ment installation, and operation of reference stations, broadcast facilities, monitor sites, and control stations to provide a differential GPS (DGPS) service for coastal and other critical waterways of the United States. The DGPS service is intended to support a number of applications where system accuracy, reliability, and integrity are all crit- ical to safe efficient navigation, As part of the design effort, the Coast Guard has analyzed the accuracy, reliability, and integrity requirements of four DGPS applications: harbor/ harbor approach navigation, vessel traffic service (VTS) surveillance, aids to navigation (ATON) positioning, and exclusive economic zone (EEZ) surveying. This paper pro- vides an overview of the DGPS design efforts, and de- scribes the analysis methodologies used to derive the DGPS reliability and integrity requirements.
Published in:	Proceedings of the 1993 National Technical Meeting of The Institute of Navigation January 20 - 22, 1993 Parc 55 Hotel San Francisco, CA
Pages:	215 - 224
Cite this article:	Updated citation: Published in NAVIGATION: Journal of the Institute of Navigation
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