Stand-Alone Vs. Embedded GPS User Equipment the Exploration of New Standards

Stan Goldstein

Abstract:	The development of GPS user equipment has proceeded to the point where military platforms are being fitted with receivers on a stand-alone basis. Although many arguments can be made for the benefits of stand-alone equipment (e.g. cost and logistics), the progress of electronics development indicates a need for embedding to further reduce cost through size and interface reductions. The question of logistics and cost can be answered by creating a standard, miniaturized module set. This module set would partition the GPS receiver functions to easily define standard interfaces for either embedded or stand-­alone applications. This paper explores size reductions possible via current technology (e.g. VLSI, 32-bit processors, Gallium Ar­senide) and partitioning of GPS receiver functions into standard electrical/mechanical modules. Consideration is given to both backward and forward compatibility requirements covering stand-alone and embedded applications. Finally, descriptions are provided for both the ITT 3/8 ATR short-short, PPS-capable, high-performance production receiver, and the new single SEM-E, PPS-capable, high performance receiver to illustrate how module sets can be configured to meet the diversity of GPS applications.
Published in:	Proceedings of the 2nd International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1989) September 27 - 29, 1989 The Broadmoor Hotel Colorado Spring, CO
Pages:	277 - 280
Cite this article:	Goldstein, Stan, "Stand-Alone Vs. Embedded GPS User Equipment the Exploration of New Standards," Proceedings of the 2nd International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1989), Colorado Spring, CO, September 1989, pp. 277-280.
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