Testing a GPS Attitude System in Kinematic Mode

Klaus-Peter Schwarz, Ahmed El-Mowafy and Ming Wei

Abstract:	Road tests to determine the attitude accuracy of the Ashtech GPS multi-antenna system in kinematic mode are described and analysed in this paper. The system configuration is described in detail and requirements for a reliable comparison of the two data streams are stated explicitly. The output of the GPS attitude system was compared to values obtained from a strapdown inertial system which was mounted on the same truck. Its accuracy is better than 0.02 degrees. Results indicate that the RMS differences between the two data streams double, from typically O-1-0.2 degrees to 0.2-0.5 degrees, when going from static to kinematic mode. In general, they also show a less dominant effect of multipath in the error pattern. Some possible reasons for the loss in accuracy and the change in error pattern are given.
Published in:	Proceedings of the 5th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1992) September 16 - 18, 1992 Albuquerque, NM
Pages:	801 - 809
Cite this article:	Schwarz, Klaus-Peter, El-Mowafy, Ahmed, Wei, Ming, "Testing a GPS Attitude System in Kinematic Mode," Proceedings of the 5th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1992), Albuquerque, NM, September 1992, pp. 801-809.
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