Real-Time Precise Point Positioning Using Single Frequency Data

Kongzhe Chen and Yang Gao

Abstract:	Precise Point Positioning (PPP) has begun to receive increased interests within the GPS community for a number of reasons: simplified operation, cost-effective and no base stations required. PPP with dual-frequency receivers and precise GPS products have demonstrated centimeter to decimeter positioning accuracy (Zumberge et al., 1997; Kouba and Héroux, 2001, Gao and Shen, 2002). Using real-time GPS products, the accuracy is also obtainable in real-time (Chen, 2004). This paper investigates PPP using single-frequency data which will be of interest to a broad range of applications as the majority of GPS users are using single-frequency GPS receivers. Since the ionospheric effect will be the biggest error source for a single-frequency receiver based PPP system, different methods for ionospheric effect mitigation will be assessed and compared, from the use of IGS precise ionosphere products to estimation via modeling, so that sub-meter positioning accuracy becomes obtainable.
Published in:	Proceedings of the 18th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2005) September 13 - 16, 2005 Long Beach Convention Center Long Beach, CA
Pages:	1514 - 1523
Cite this article:	Chen, Kongzhe, Gao, Yang, "Real-Time Precise Point Positioning Using Single Frequency Data," Proceedings of the 18th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2005), Long Beach, CA, September 2005, pp. 1514-1523.
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