VRS Virtual Observations Generation Algorithm

Erhu Wei, Hua Chai, Zhiguo An, Jingnan Liu

President, Wuhan University, Luojia Hill, Wuhan 430072, China.
School of Geodesy and Geomatics, Wuhan University, 129 Luoyu Road,Wuhan 430079,China.

DOI:                 

Abstract

In the past few years, network RTK positioning technology, especially the VRS （virtual reference stations）technology, has been widely used in some parts of China and many countries of the world. In this paper, the authors mainly discuss the principle of VRS technology with corresponding formula deduction, and give detailed descriptions of VRS corrections and virtual observations generation algorithm as well as their applications.

Keywords

Network-RTK, VRS, corrections generation algorithm, virtual observation

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1]	Gao X.W., Liu J.N., Ge M.R. (2002) An Ambiguity Searching Method for Network RTK Baselinesbetween Base Stations at Single Epoch, Acta Geodaetica et Cartographica Sinica, Vol. 31 , No. 4.
[2]	Rizos C., Han S. and Chen H.Y. (2000) Regional-Scale Multiple Reference Stations for Carrier Phase-Based GPS Positioning A Correction Generation Algorithm. Earth, Planets & Space, 52(10), 795-800.
[3]	Dai L., Han S., Wang J. and Rizos C. (2001) A study of GPS/GLONASS multiple reference station techniques for precise real-time carrier phase–based positioning, 14th Int. Tech. Meeting of the Satellite Division of the U.S. Inst. of Navigation, Salt Lake City, Utah, 11-14 September, 392-403.
[4]	Fotopoulos G. and Cannon M.E. (2001) An Overview of Multi-Reference Station Methods for Cm-Level Positioning, GPS Solutions, Vol. 4, No. 3, pp. 1-10.
[5]	Raquet J. and Lachapelle G. (2001) RTK positioning with multiple reference stations, GPS World, Apr 2001;12,4,48-53.
[6]	Vollath U., Buecherl A., Landau H., Pagels C. & Wagner B. (2000) Multi-base RTK positioning using Virtual Reference Stations, ION GPS’2000 proceedings, 123-131