Results of an Internet-Based Dual-Frequency Global Differential GPS System

Ronald J. Muellerschoen, Willy I. Bertiger and Michael F. Lough

Abstract:	Observables from a global network of 18 GPS receivers are returned in real-time to JPL over the open Internet. Global GPS orbits accurate to 30-40 cms RSS and precise dual-frequency GPS clocks are computed in real-time with JPL's Real-Time Gipsy (RTG) software. Corrections to the broadcast orbits and clocks are communicated to the user over the open Internet via a TCP server. Tests of user positioning show real-time RMS accuracy of 8 cms RMS in horizontal and 20 cms RMS in the vertical.
Published in:	Proceedings of the IAIN World Congress and the 56th Annual Meeting of The Institute of Navigation (2000) June 26 - 28, 2000 The Catamaran Resort Hotel San Diego, CA
Pages:	796 - 802
Cite this article:	Muellerschoen, Ronald J., Bertiger, Willy I., Lough, Michael F., "Results of an Internet-Based Dual-Frequency Global Differential GPS System," Proceedings of the IAIN World Congress and the 56th Annual Meeting of The Institute of Navigation (2000), San Diego, CA, June 2000, pp. 796-802.
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