Twenty-Centimeter Kinematic DGPS Positioning With Digital Barometry

John Schleppe, James McLellan, Jill Battie, and J. Scott McCarron

Abstract:	Use of GPS in land geophysical surveys has increased significantly over the last few years, with dual frequency Real Time Kinematic (RTK) systems dominating the market. While effective in open areas, GPS signal attenuation and multipath limit its use in tree covered terrain. Conventional surveys remain the primary means of layout and survey of seismic points in tree covered areas. Pressures on oil and geophysical companies to limit tree cutting have made them look for alternate methods for surveying under tree canopies. An integrated system developed by Pulsearch Navigation Systems Inc. provides a solution to this problem, offering satisfactory vertical accuracies in both open and tree covered areas. A description of the system is given, along with a review of barometric leveling techniques. A series of controlled and field tests were performed to assess the achievable accuracies of the system and to help identify main error sources. Tests demonstrating the achievable accuracy of the integrated system are described and results are discussed.
Published in:	Proceedings of the 8th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1995) September 12 - 15, 1995 Palm Springs, CA
Pages:	1831 - 1840
Cite this article:	Schleppe, John, McLellan, James, Battie, Jill, McCarron, J. Scott, "Twenty-Centimeter Kinematic DGPS Positioning With Digital Barometry," Proceedings of the 8th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1995), Palm Springs, CA, September 1995, pp. 1831-1840.
Full Paper:	ION Members/Non-Members: 1 Download Credit Sign In