GPS Relative Accuracy for Collision Avoidance

Marc-Philippe Rudel, Jonathan Baldwin

Abstract:	Two different approaches can be considered to cal- culate the relative position vector, essential in colli- sion avoidance studies: the first consists in using the fundamental GPS equations, solving for the absolute position of each receiver and differencing them, the second feat,ures a new algorithm, solving for relative position directly. Both methods take advantage of the cancellation of position errors common to both users. However, a statistical analysis based on experimental results shows that the latter offers an improvement of 50% in position accuracy.
Published in:	Proceedings of the 1997 National Technical Meeting of The Institute of Navigation January 14 - 16, 1997 Loews Santa Monica Hotel Santa Monica, CA
Pages:	971 - 977
Cite this article:	Rudel, Marc-Philippe, Baldwin, Jonathan, "GPS Relative Accuracy for Collision Avoidance," Proceedings of the 1997 National Technical Meeting of The Institute of Navigation, Santa Monica, CA, January 1997, pp. 971-977.
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