Hostname: page-component-cd9895bd7-mkpzs Total loading time: 0 Render date: 2024-12-23T14:43:08.611Z Has data issue: false hasContentIssue false
  • English
  • Français

A New Method to Accelerate PPP Convergence Time by using a Global Zenith Troposphere Delay Estimate Model

Published online by Cambridge University Press:  29 April 2014

Yibin Yao ,
Chen Yu  and
Yufeng Hu
Yibin Yao*
Affiliation:
(School of Geodesy and Geomatics, Wuhan University, Wuhan 430079, China) (Key Laboratory of Geospace Environment and Geodesy, Ministry of Education, Wuhan University, Wuhan 430079, China)
Chen Yu
Affiliation:
(School of Geodesy and Geomatics, Wuhan University, Wuhan 430079, China)
Yufeng Hu
Affiliation:
(School of Geodesy and Geomatics, Wuhan University, Wuhan 430079, China)
*
(E-mail: [email protected])
Get access Rights & Permissions [Opens in a new window]

Abstract

This paper presents a new algorithm to accelerate Precise Point Positioning (PPP) convergence. The main idea is to consider the station tropospheric zenith total delay, which is obtained by a global zenith troposphere delay estimate model, as virtual observation and combine it with phase and pseudo-range observations to formulate observation equations. Without relying on any other external enhancement information, it only requires four satellites to quickly complete the positioning with centimetre-level accuracy. Compared with the conventional method, the new one brings about 15% improvement in convergence time.

Keywords

PPPConvergence timeZenith troposphere-delay estimate modelVirtual observation
Type
Research Article
Information
The Journal of Navigation , Volume 67 , Issue 5 , September 2014 , pp. 899 - 910
Copyright
Copyright © The Royal Institute of Navigation 2014 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Bar-Sever, Y.E., Kroger, P.M. and Borjesson, J.A. (1998). Estimating Horizontal Gradients of Tropospheric Path Delay With A Single GPS Receiver. Journal of Geophysical Research, 103(B3), 5019–5035.Google Scholar
Bisnath, S. and Gao, Y. (2008). Current state of precise point positioning and future prospects and limitations. In Observing our changing earth (pp. 615–623). Springer, Berlin, Heidelberg.Google Scholar
Cai, C. and Gao, Y. (2007). Performance analysis of Precise Point Positioning based on combined GPS and GLONASS. In Proc. ION GNSS, 858–865.Google Scholar
Cai, C. and Gao, Y. (2012). Modelling and assessment of combined GPS/GLONASS precise point positioning. GPS Solutions, 17(2), 223–236.Google Scholar
Collins, J.P. and Langley, R.B. (1997). A tropospheric delay model for the user of the Wide Area Augmentation System. Department of Geodesy and Geomatics Engineering, University of New Brunswick.Google Scholar
Collins, P., Bisnath, S., Lahaye, F. and Héroux, P. (2010). Undifferenced GPS ambiguity resolution using the decoupled clock model and ambiguity datum fixing. Navigation, 57(2), 123.CrossRefGoogle Scholar
Davis, J.L., Herring, T.A., Shapiro, I.I., Rogers, A.E.E. and Elgered, G. (1985). Geodesy by radio interferometry: Effects of atmospheric modelling errors on estimates of baseline length. Radio Science, 20(6), 1593–1607.Google Scholar
Ge, M., Gendt, G., Rothacher, M., Shi, C. and Liu, J. (2008). Resolution of GPS carrier-phase ambiguities in Precise Point Positioning (PPP) with daily observations. Journal of Geodesy, 82(7), 389–399.Google Scholar
Ge, M.R., Zou, X., Dick, G., Jiang, W.P., Wickert, J. and Liu, J.N. (2010). An alternative network RTK approach based on undifferenced observation corrections, ION GNSS. (Portland, Oregon).Google Scholar
Geng, J. and Bock, Y. (2013). Triple-frequency GPS precise point positioning with rapid ambiguity resolution. Journal of Geodesy, 87(5), 449–460.CrossRefGoogle Scholar
Keshin, M.O. and van der Marel, H. (2008). The impact of tropospheric correction models on the convergence of kinematic carrier phase-based precise point positioning. NAVITEC 2008 4th ESA workshop on satellite navigation user equipment technologies, Noordwijk, 1–8.Google Scholar
Kouba, J. and Héroux, P. (2001). Precise point positioning using IGS orbit and clock products. GPS Solutions, 5(2), 12–28.CrossRefGoogle Scholar
Kouba, J. (2005). A possible detection of the 26 December 2004 Great Sumatra-Andaman Islands Earthquake with solution products of the International GNSS Service. Studia Geophysica et Geodaetica, 49(4), 463–483.Google Scholar
Li, X., Zhang, X. and Ge, M. (2011). Regional reference network augmented precise point positioning for instantaneous ambiguity resolution. Journal of Geodesy, 85(3), 151–158.Google Scholar
Li, W., Yuan, Y., Ou, J., Li, H. and Li, Z. (2012). A new global zenith tropospheric delay model IGGtrop for GNSS applications. Chinese Science Bulletin, 57(17), 2132–2139.Google Scholar
Loyer, S., Perosanz, F., Mercier, F., Capdeville, H. and Marty, J.C. (2012). Zero-difference GPS ambiguity resolution at CNES–CLS IGS Analysis Center. Journal of Geodesy, 86(11), 991–1003.Google Scholar
Niell, A.E. (1996). Global mapping functions for the atmosphere delay at radio wavelengths. Journal of Geophysical Research: Solid Earth, 101(B1), 3227–3246.Google Scholar
Qu, W.J., Zhu, W.Y., Song, S.L. and Ping, J.S. (2008). Evaluation of the precision of three tropospheric delay correction models. Chinese Astronomy and Astrophysics, 32(4), 429–438.Google Scholar
Teunissen, P.J.G. and Kleusberg, A. (1996). GPS for geodesy, Volume 60 of lecture notes in Earth Sciences. Springer, New York, 175–217.Google Scholar
Teunissen, P.J.G. and Odijk, D. and Zhang, B. (2010). PPP-RTK: Results of CORS network-based PPP with integer ambiguity resolution. Journal of Aeronautics, Astronautics and Aviation, Series A, 42(4), 223–230.Google Scholar
Wu, J.T., Wu, S.C., Hajj, G.A., Bertiger, W.I., and Lichten, S. M. (1992). Effects of antenna orientation on GPS carrier phase. Astrodynamics 1991, Vol. 1, 1647–1660.Google Scholar
Yao, Y.B., He, C.Y., Zhang, B. and Xu, C.Q. (2013). A new global zenith tropospheric delay model global ZTD model. Chinese Journal of Geophysics-Chinese Edition, 56(7), 2218–2227.Google Scholar
Zhang, X., Li, X. and Guo, F. (2011). Satellite clock estimation at 1 Hz for realtime kinematic PPP applications. GPS solutions, 15(4), 315–324.Google Scholar
Zou, X., Ge, M., Tang, W., Shi, C., and Liu, J. (2013). URTK: undifferenced network RTK positioning. GPS solutions, 17(3), 283–293.Google Scholar
Zumberge, J. F., Heflin, M. B., Jefferson, D. C., Watkins, M. M., and Webb, F. H. (1997). Precise point positioning for the efficient and robust analysis of GPS data from large networks. Journal of Geophysical Research: Solid Earth (1978–2012), 102(B3), 5005–5017.Google Scholar