Performance Evaluation of Single Antenna GPS Attitude Algorithms with the Aid of Future GNSS Constellations

Charles Wang, Rodney A. Walker and Yanming Feng

Abstract:	Over the past decade, substantial research effort has been made towards the use of GPS signal strength measurements, in single antenna configuration, for attitude determination purpose. While they have the advantages of being low cost and easy to implement, these techniques suffers from the coarse accuracy limitation. Researchers have indicated that one of the performance dependant factors is the number of tracked GPS satellites. This paper aims to examine the potential of using combination of GNSS constellations to overcome coarse accuracy limitation of single antenna GPS attitude algorithms. This performance evaluation is done with the use of Virtual Galileo Concept (VGC), in which a virtual Galileo constellation will be simulated and used in combination with the current GPS constellation. Three single antenna algorithms are examined and results shows that substantial improvements in the accuracy can be achieved through the use to combined GPS and virtual Galileo constellation. Additionally, results have also shown strong evident in confirming the relationship between attitude estimation accuracy and the total number of tracked GPS satellite.
Published in:	Proceedings of the 20th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2007) September 25 - 28, 2007 Fort Worth Convention Center Fort Worth, TX
Pages:	883 - 891
Cite this article:	Wang, Charles, Walker, Rodney A., Feng, Yanming, "Performance Evaluation of Single Antenna GPS Attitude Algorithms with the Aid of Future GNSS Constellations," Proceedings of the 20th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2007), Fort Worth, TX, September 2007, pp. 883-891.
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