Abstract
BDS-3 precise point positioning (PPP) service mainly broadcasts PPP-B2b augmentation information through GEO satellites, so as to realize fast and high-precision positioning for ground users. This paper first introduces PPP-B2b information and B2b ephemeris recovery method, then evaluates ephemeris accuracy, the errors in radial, tangential and normal directions of B2b orbit are 6.70 cm, 23.39 cm and 25.84 cm respectively, which are 6.0%, 22.8% and 7.3% better than broadcast ephemeris, and the equivalent distance error of satellite clock is 5.33 cm, which is 76.4% better than broadcast ephemeris. Based on this information, a real-time PPP algorithm is realized. The new BDS-3 signals B1C, B2a and B2b are used to evaluate the positioning performance. In the static positioning experiment mode, the horizontal positioning accuracy is better than 2 cm, the vertical positioning accuracy is about 4 cm, and the convergence time is 4–5 min. In the kinematic positioning experiment mode, the horizontal positioning accuracy is better than 10 cm, the vertical direction accuracy is about 10 cm, and the convergence time is 6 min.
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Acknowledgements
This work was supported in part by the National Key Research and Development Program of China (No. 2019YFC1511504, No. 2016YFB0501900) and National Natural Science Foundation of China (No. 41774017).
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Ai, L., Wu, J., Wang, B., Zhang, R. (2021). The Realization and Performance Evaluation of Real-Time Precise Point Positioning Based on BDS-3 PPP-B2b Augmentation Information. In: Yang, C., Xie, J. (eds) China Satellite Navigation Conference (CSNC 2021) Proceedings. Lecture Notes in Electrical Engineering, vol 773. Springer, Singapore. https://doi.org/10.1007/978-981-16-3142-9_29
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DOI: https://doi.org/10.1007/978-981-16-3142-9_29
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