Applications of the ARL:UT GPS Reference Marker Positioning System

Brian W. Tolman, Mark P. Leach, David S. Coco, Michael A. Cardoza

Abstract:	Applied Research Laboratories, The University of Texas at Austin (ARL:UT) has developed a differential GPS system that determines, quickly and efficiently, the path of a vehicle and the position of roadside targets, without stopping the vehicle. As part of this system, ARL:UT has developed microcomputer-based postprocessing software that uses GPS pseudorange and phase data to produce positions accurate at the few meter level. The system is adaptable to various types of receivers (TI 4100, Ashtech, Trimble) and to various types of target sensors (infrared laser, video), and thus can support a wide variety of applications. Two unique applications being developed by ARL:UT are a Hiahwav Reference Marker Positioninq System for the Texa; State Department of Highways- and Public Transportation and a video/GPS positioning system for the Defense Mapping Agency. This paper describes the ARL:UT Reference Marker Positioning System, discusses the two applications being developed, and presents results from preliminary proof-of-concept tests. The paper concludes with a discussion of several possible enhancements of the system.
Published in:	Proceedings of the 3rd International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1990) September 19 - 21, 1990 The Broadmoor Hotel Colorado Spring, CO
Pages:	741 - 745
Cite this article:	Tolman, Brian W., Leach, Mark P., Coco, David S., Cardoza, Michael A., "Applications of the ARL:UT GPS Reference Marker Positioning System," Proceedings of the 3rd International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1990), Colorado Spring, CO, September 1990, pp. 741-745.
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