High Precision Real-Time Positioning Using Low Cost OEM Sensors

Dan-en Cosandier, Adel Tabsh and Hugh Martell

Abstract:	This paper describes a real-time kinematic GPS system which is capable of accuracies up to the level of a few centimetres utilizing various phase- capable low cost GPS sensors. Typical real-time kinematic applications currently involve the use of relatively high cost GPS sensors. Users who require high accuracy in real-time may find that existing conventional systems are not always cost-effective for their particular task. In fact, for some applications the cost of a real-time GPS system may approach the cost of the equipment on which it is installed. Applications where low cost may be desirabIe or necessary in some instances, include agriculture, lwbwhy, military testing, construction, and surveying. Described in this paper are the results of various real-time tests conducted under typical field conditions, to accuracies ranging from 2 cm - 30 cm depending on the type of application for which the survey was performed. Tests varied from parallel tracking for high precision site specific farming, to moving baseline surveys, as well as typical land & geodetic work. These showed conclusively that low cost code-phase sensors are capable of cost-effective high precision survey work for many tasks.
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:	1433 - 1441
Cite this article:	Cosandier, Dan-en, Tabsh, Adel, Martell, Hugh, "High Precision Real-Time Positioning Using Low Cost OEM Sensors," 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. 1433-1441.
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