Performance Evaluation of the NRCAN Wide Area System

S. Skone, M. E. Cannon, K. Lochhead, P. Heroux, F. Lahaye

Abstract:	Since 1992, Geodetic Survey Division, Natural Resources Canada (NRCan) has been generating post-mission precise orbit and 30 second clock corrections using the Canadian Active Control System (CACS) as well as 22 additional International GPS Service for Geodynamics (IGS) global tracking stations. NRCan has undertaken a new initiative in which the precise orbits are predicted to facilitate real-time positioning. When accompanied with precise clock corrections, and the reformatting of data to be consistent with RTCM standards, users can obtain wide area positions which are automatically referenced to the national framework. In order to analyze the performance of the NRCan wide area system, several test were conducted on The University of Calgary test ranges. These tests include an analysis of the predicted orbit accuracy versus the post-mission orbit, a comparison of the wide area achievable accuracies, as well as a comparison of the wide area positions with those obtained from local area DGPS. Both static and kinematic tests were performed using various receiver technologies. In the case of the kinematic tests, an accurate reference trajectory was computed using carrier phase techniques in post-mission. The performance analysis includes measures of the accuracy of the system for each receiver tested, as well as the effects of latency.
Published in:	Proceedings of the 9th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1996) September 17 - 20, 1996 Kansas City, MO
Pages:	1793 - 1802
Cite this article:	Skone, S., Cannon, M. E., Lochhead, K., Heroux, P., Lahaye, F., "Performance Evaluation of the NRCAN Wide Area System," Proceedings of the 9th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1996), Kansas City, MO, September 1996, pp. 1793-1802.
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