Abstract
With the development of GNSS technology, the higher demand for calculation is put forward in the field of the whole network baseline solution. The conventional baseline solution is a three-step method, which is complex and relies on the success rate of ambiguity solution at each step. A modified strategy for baseline ambiguity resolution is proposed in the paper, using un-combined and un-differenced model. The equality constraint is also used to recover the integer property of ambiguities. By the constraint of the fixed ambiguities, the baseline solution could be obtained. The data sets from various lengths of baselines are conducted to investigate the performance of the UD strategy. Depending on the empirical fixed success rate and convergence time, the modified strategy has a better AR performance on the rising satellites and weakens the unknown coefficient of correlation between ambiguities.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Hofmann-Wellenhof B, Lichtenegger H, Collins J (2001) Global positioning system: theory and practice, 5th revised edn. Springer Wien, New York, pp 192–196
Teunissen PJ (1995) The least-squares ambiguity decorrelation adjustment: a method for fast GPS integer ambiguity estimation. J Geodesy 70(1–2):65–82
Wübbena G, Schmitz M, Bagge A (2005) PPP-RTK: precise point positioning using state-space representation in RTK networks. In: Proceedings of ION GNSS, vol. 5, pp 13–16
Wielgosz P, Kashani I, Grejner-Brzezinska D (2005) Analysis of long-range network RTK during a severe ionospheric storm. J Geodesy 79(9):524–531
Takasu T, Yasuda A (2010) Kalman-filter-based integer ambiguity resolution strategy for long-baseline RTK with ionosphere and troposphere estimation. In: ION NTM
Li B, Verhagen S, Teunissen PJ (2014) Robustness of GNSS integer ambiguity resolution in the presence of atmospheric biases. GPS Solutions 18(2):283–296
Teunissen PJG, Kleusberg A, Teunissen PJG (1998) GPS for geodesy [M]. Springer, Berlin
Zumberge JF, Heflin MB, Jefferson DC, Watkins MM, Webb FH (1997) Precise point positioning for the efficient and robust analysis of GPS data from large networks. J Geophys Res 102:5005–5017
Ge M, Gendt G, Rothacher M, Shi C, Liu J (2008) Resolution of GPS carrier-phase ambiguities in precise point positioning (PPP) with daily observations. J Geodesy 82(7):389–399
Geng J, Teferle FN, Meng X, Dodson AH (2011) Towards PPP-RTK: ambiguity resolution in real-time precise point positioning. Adv Space Res 47(10):1664–1673
Laurichesse D, Mercier F, Berthias JP, Broca P, Cerri L (2008) Zero-difference ambiguity fixing for spaceborne GPS receivers. In: Proceedings of ION GNSS, pp 758–768
Collins P (2008) Isolating and estimating un differenced GPS integer ambiguities. In: Proceedings ION NTM, pp 720–732
Keshin MO, Le AQ, Marel H (2006) Single and dual-frequency precise point positioning: approaches and performance. In: Proceedings of the 3rd ESA workshop on satellite navigation user equipment technologies, NAVITEC 2006, 11–13 Dec, The Netherlands
Zhang B, Teunissen PJ, Odijk D (2011) A novel un-differenced PPP-RTK concept. J Navig 64(S1):S180–S191
Li X (2012) Improving real-time PPP ambiguity resolution with ionospheric characteristic consideration. In: Proceedings of ION GNSS-12, institute of navigation, Nashville, Tennessee, 17–21 Sept
Teunissen PJ (1998) Success probability of integer GPS ambiguity rounding and bootstrapping. J Geodesy 72(10):606–612
Acknowledgments
This work is supported by the Key Projects in the National Science & Technology Pillar Program during the Twelfth Five-year Plan Period (No. 2012BAJ23B01). The authors are very grateful to the anonymous reviewers for their constructive comments and suggestions.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2015 Springer-Verlag Berlin Heidelberg
About this paper
Cite this paper
Wang, D., Gao, C., Pan, S., Gao, W. (2015). A Baseline Ambiguity Resolution Using Un-combined and Un-differenced Model with Equality Constraint. In: Sun, J., Liu, J., Fan, S., Lu, X. (eds) China Satellite Navigation Conference (CSNC) 2015 Proceedings: Volume II. Lecture Notes in Electrical Engineering, vol 341. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-46635-3_42
Download citation
DOI: https://doi.org/10.1007/978-3-662-46635-3_42
Published:
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-662-46634-6
Online ISBN: 978-3-662-46635-3
eBook Packages: EngineeringEngineering (R0)