Wide Area Differential GPS-Potential for Accurate Global Navigation

Prem Munjal and Mohan Ananda

Abstract:	This paper presents the results of a simulation analysis that was performed to evaluate the navigation accuracy achieved by utilizing Wide Area Differential GPS (WADGPS) capability. The results show that the GPS Standard Positioning Service (SPS) radionavigation accuracy can be significantly improved with minimum impact to the user equipment, and most of the systematic errors including the errors associated with Selective Availability (SA) are minimized. The errors due to ionospheric effects have also been studied and the results further show that a horizontal position accuracy on the order of 10 m (1 a) is obtained by utilizing single-frequency calibrations without involving complex modeling techniques. However, this paper does not address the achievable velocity accuracy using WADGPS.
Published in:	Proceedings of the 48th Annual Meeting of The Institute of Navigation (1992) June 29 - 1, 1992 ANA Westin Hotel Dayton, OH
Pages:	243 - 254
Cite this article:	Munjal, Prem, Ananda, Mohan, "Wide Area Differential GPS-Potential for Accurate Global Navigation," Proceedings of the 48th Annual Meeting of The Institute of Navigation (1992), Dayton, OH, June 1992, pp. 243-254.
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