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Evaluation and Application of the GPS Code Observable in Precise Point Positioning

  • Haojun Li (a1), Jingxin Xiao (a1) and Bofeng Li (a1)
Abstract

The accuracy of the Global Positioning System (GPS) observable, especially for the code observable, has improved with the development of Global Navigation Satellite System (GNSS) receiver technology. An evaluation of the GPS code observable is presented in this paper, together with a stochastic model for the code and phase observables in Precise Point Positioning (PPP), established using the evaluated results. The results show that the code observables of Leica GNSS receivers are generally better than those of some other brand receivers and the Root Mean Square (RMS) for the code observables of the Leica GRX1200PRO, which includes the multipath effect, reaches 0·71 m, although Coarse/Acquisition (C/A) code observables are tracked. The static positioning of the code observable can reach centimetre level and the convergence time for the JPLM station is just 2·5 hours. The positioning results show that it is difficult to converge the Up direction to the centimetre level, compared with the North and East directions. The results show that static positioning can be correlated with the accumulation characteristic of the error for the code observable, while that that of the kinematic mode can be correlated to the error value. The shortened PPP convergence times verify that the presented stochastic models are effective.

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Banville, S., Collins, P., Lahaye, F. (2013). GLONASS ambiguity resolution of mixed receiver types without external calibration. GPS Solutions, 17(3), 275282.
Bock, H., Dach, R., Jäggi, A. and Beutler, G. (2009). High-rate GPS clock corrections from CODE: Support of 1 Hz applications. Journal of Geodesy, 83(11), 10831094.
Collins, P. (2008). Isolating and estimating undifferenced GPS integer ambiguities. Proceedings of ION national technical meeting, San Diego, US, 720732.
Dow, J., Neilan, R. and Rizos, C. (2009). The International GNSS Service in a changing landscape of Global Navigation Satellite Systems. Journal of Geodesy, 83(3–4), 191198.
Estey, L.H. and Meertens, C.M. (1999). TEQC: the multi-purpose toolkit for GPS/GLONASS data. GPS Solutions, 3(1), 4249.
Fang, R., Shi, C., Song, W., Wang, G. and Liu, J. (2014). Determination of earthquake magnitude using GPS displacement waveforms from real-time precise point positioning. Geophysical Journal International, 196(1), 461472.
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), 389399.
Geng, J., Meng, X., Dodson, A.H. and Teferle, F.N. (2010). Integer ambiguity resolution in precise point positioning: method comparison. Journal of Geodesy, 84(9), 569581.
Geng, T., Xie, X., Fang, R., Su, X., Zhao, Q., Liu, G., Li, H., Shi, C. and Liu, J. (2016). Real-time capture of seismic waves using high-rate multi-GNSS observations: Application to the 2015 Mw7·8 Nepal earthquake. Geophysical Research Letters, 43(1), 161167.
Gao, Y. and Shen, X. (2002). A new method for carrier phase based Precise Point Positioning. Navigation, 49(2), 109116.
Hauschild, A. and Montenbruck, O. (2009). Kalman-filter-based GPS clock estimation for near real-time Positioning. GPS Solutions, 13(3), 173182.
Hilla, S. and Cline, M. (2004). Evaluating pseudorange multipath effects at stations in the National CORS Network. GPS Solutions, 7(4), 253267.
Kouba, J. and Héroux, P. (2001). Precise Point Positioning Using IGS Orbit and Clock Products. GPS Solutions, 5(2), 1228.
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), 463483.
Leick, A., Rapoport, L. and Tatarnikov, D. (2015) GPS satellite surveying, 4th edn. Wiley, New York.
Lannes, A and Prieur, J (2013) Calibration of the clock-phase biases of GNSS networks: the closure-ambiguity approach. Journal of Geodesy, 87(8), 709731.
Laurichesse, D. and Mercier, F. (2007). Integer ambiguity resolution on undifferenced GPS phase measurements and its application to PPP. Proceedings of the 20th international technical meeting of the satellite division of the Institute of Navigation (ION GNSS 2007), 839848.
Leandro, R.F., Santos, M.C. and Langley, R.B. (2011). Analyzing GNSS data in precise point positioning software. GPS Solutions, 15(1), 113.
Li, B., Shen, Y. and Xu, P. (2008). Assessment of stochastic models for GPS measurements with different types of receivers. Chinese Science Bulletin, 53(20), 32193225.
Li, H., Chen, J., Wang, J., Hu, C. and Liu, Z. (2010a), Network based Real-time Precise Point Positioning. Advances in Space Research, 46(9), 12181224.
Li, H., Wang, J., Chen, J., Hu, C. and Wang, H. (2010b). The realization and analysis of GNSS Network based Real-time Precise Point Positioning. Chinese Journal of Geophysics-Chinese Edition, 53(6), 13021307.
Li, H., Chen, J., Wang, J. and Wu, B. (2012). Satellite- and epoch differenced precise point positioning based on regional augmentation network. Sensors, 12(6), 75187528.
Li, H., Xu, T., Li, B., Huang, S. and Wang, J. (2016). A new differential code bias (C1–P1) estimation method and its performance evaluation. GPS Solutions, 20(3), 321329.
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), 9911003.
Seepersad, G. and Bisnath, S. (2015). Reduction of PPP convergence period through pseudorange multipath and noise mitigation. GPS Solutions, 19(3), 369379.
Shi, J., Yuan, X., Cai, Y. and Wang, G. (2017). GPS real-time precise point positioning for aerial triangulation. GPS Solutions, 21(2), 405414.
Teunissen, P.J.G., Odijk, D. and Zhang, B. (2010). PPP-RTK: results of CORS network-based PPP with integer ambiguity resolution. Journal of Aeronautics, Astronautics and Aviation, 42(4), 223229.
Teunissen, P.J.G. and Khodabandeh, A. (2015). An analytical study of PPP-RTK corrections: precision, correlation and user-impact, Journal of Geodesy, 89(11), 11091132.
Wang, J., Stewart, M. and Tsakiri, M. (1998). Stochastic Modeling for Static GPS Baseline Data Processing. Journal of Surveying Engineering, 124(4), 171181.
Zhang, X., Li, X. and Guo, F. (2011). Satellite clock estimation at 1 Hz for realtime kinematic PPP applications. GPS Solutions, 15(4), 315324.
Zhang, X., Li, P. and Guo, F. (2013). Ambiguity resolution in precise point positioning with hourly data for global single receiver. Advances in Space Research, 51(1), 153161.
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, 102(B3), 50055017.
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The Journal of Navigation
  • ISSN: 0373-4633
  • EISSN: 1469-7785
  • URL: /core/journals/journal-of-navigation
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