Fault Tolerant Marine Beacons - A New Strategy for Maintaining Continuous DGPS Operations

Simon Frost

Abstract:	The essential function of a Differential Global Positioning System (DGPS) broadcast station is to provide the continuous transmission of pseudo-range corrections to remote users. For precise marine operations, such DGPS navigation systems must provide an accurate and reliable service to uses. The Australian Maritime Safety Authority (AMSA) commissioned two DGPS marine beacons to test the feasibility of DGPS for Australian waters and shipping. To ensure reliable operation, SAGEM Australasia, under contract to AMSA, developed a multi-purpose DGPS control software package integrating fault tolerance and equipment redundancy with existing RTCM and RSIM standards. The result is a Fault Tolerant Marine Beacon (FTMB). This paper outlines the hardware and software design strategies used to implement this system and suggests that additional messages be incorporated into the RSIM documentation.
Published in:	Proceedings of the 7th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1994) September 20 - 23, 1994 Salt Palace Convention Center Salt Lake City, UT
Pages:	1445 - 1449
Cite this article:	Frost, Simon, "Fault Tolerant Marine Beacons - A New Strategy for Maintaining Continuous DGPS Operations," Proceedings of the 7th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1994), Salt Lake City, UT, September 1994, pp. 1445-1449.
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