Millimeter Accuracy Kinematic GPS Surveying

Mark P. Leach, Shane Nelson, Charles Slack

Abstract:	Kinematic positioning and monitoring at the cm level has become a routine practice in GPS. However, applications which require mm level kinematic positioning and monitoring exist and represent a significant challenge to GPS-based system developers. The Applied Research Laboratories, University of Texas at Austin (ARL:UT) has developed a prototype GPS-based kinematic surveying system to measure the position and change in position of the rails and benchmarks of the Holloman High Speed Sled Test Track (HHSSTT) to millimeter level accuracy. The primary system sensors are low cost single frequency GPS receivers. Additional sensors such as digital tilt- meters and vernier offset measurement devices, are used to refine the measurements. A principle motivation for the development of a millimeter accuracy kinematic surveying system is to reduce the level of effort and time required for HHSSTT surveys while maintaining or improving survey quality. The ultimate goal is to allow millimetric accuracy rail deformation surveys to be conducted as often as desired to support the requirements of current and future testing programs at the HHSSTT.
Published in:	Proceedings of the 53rd Annual Meeting of The Institute of Navigation (1997) June 30 - 2, 1997 Albuquerque, NM
Pages:	195 - 203
Cite this article:	Leach, Mark P., Nelson, Shane, Slack, Charles, "Millimeter Accuracy Kinematic GPS Surveying," Proceedings of the 53rd Annual Meeting of The Institute of Navigation (1997), Albuquerque, NM, June 1997, pp. 195-203.
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