Development of Small Embedded GPS/INS RLG and FOG Systems for the 90% and Beyond

Marty Franklin and Steve Pagnucco

Abstract:	Air and ground vehicle navigation capability can be significantly enhanced with a navigator that integrates a Global Positioning System W’S) receiver with an Inertial Navigation System (INS). Such. a system can be realized through the integration of a stand-alone GPS with a stand-alone INS, in either a loosely or closely coupled configuration. An alternative approach is to embed the GPS receiver in an INS creating a tightly coupled Integrated GPSLINS (IGI) in one assembly. The embedded IGI approach has significant advantages. This paper discusses the advantages of an em- bedded IGI navigator for navigation and guid- ance applications, showing advantages in performance and over-all mission flexibility over a closely coupled GPS/INS. These benefits are available in an embedded IGI package which is smaller, lighter, lower power, and lower cost than closely coupled stand-alone GPS and INS systems. Also addressed are the “next generation” IGI systems in development at Honeywell that offer the advantages described herein. The first system is Honeywell’s small inertial navigator, the H764-C3, based on the latest generation Ring Laser Gyro (RIG) technology. Data is presented showing the size, weight, power, and pelfOrmanCe characteristics achieved to date for the H764 strapdown INS family. Development of the H764-C3, containing an embedded six- channel GPS receiver, is discussed. Next, this paper discusses the future of embedded GPWINS. The development of naviga- tion-grade Interferometric Fiber Optic Gyros Pow, combined with further advances in electronic P~h+& offers further reductions in sire, weight, power, and cost for embedded GPS/INS systems of the 90’s and beyond.
Published in:	Proceedings of the 1992 National Technical Meeting of The Institute of Navigation January 27 - 29, 1992 Catamaran Resort Hotel San Diego, CA
Pages:	3 - 12
Cite this article:	Franklin, Marty, Pagnucco, Steve, "Development of Small Embedded GPS/INS RLG and FOG Systems for the 90% and Beyond," Proceedings of the 1992 National Technical Meeting of The Institute of Navigation, San Diego, CA, January 1992, pp. 3-12.
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