Effect of Antenna Performance on the GPS Signal Accuracy

Waldemar Kunysz

Abstract:	The effect of antenna performance on the carrier phase measurement accuracy is described. The antenna performance characteristics in the presence of multipath are analyzed in terms of an antenna Axial Ratio and an antenna Noise Figure. In this analysis, the multipath is assumed to originate from a single point located on a perfectly conducting ground. The analysis focuses on the carrier phase sensitivity with respect to various parameters such as antenna Axial Ratio, Noise Figure, ground reflection coefficient, etc. The analytical simulations show that Axial Ratio has significantly more influence on the carrier phase accuracy in presence of multipath than antenna Noise Figure.
Published in:	Proceedings of the 1998 National Technical Meeting of The Institute of Navigation January 21 - 23, 1998 Westin Long Beach Hotel Long Beach, CA
Pages:	575 - 580
Cite this article:	Kunysz, Waldemar, "Effect of Antenna Performance on the GPS Signal Accuracy," Proceedings of the 1998 National Technical Meeting of The Institute of Navigation, Long Beach, CA, January 1998, pp. 575-580.
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