Abstract
The BDS-3 system has been fully constructed and formally opened in 2020. Precise Point Positioning (PPP) is of high value in research and application regions. In order to analyze the PPP result using BDS-3 and BDS-2, this article first introduces the information of BDS-3 and its differences with BDS-2. Then, the PPP algorithm based on BDS-2 and BDS-3 is discussed in detail. Besides, the differences between BDS-2 and BDS-3 in satellite attitude models, as well as the processing method of inter system bias are compared and analyzed. In the static PPP experiment based on BDS-3 and BDS-2, the position RMS are 0.31 cm, 0.47 cm, 1.11 cm in east, north and up directions respectively, and the convergence time is about 24.80 min. In the kinematic PPP experiment, the three-dimensional position RMS are 2.67 cm, 4.05 cm, 8.04 cm, and the convergence time is up to 36.84 min. Compared to using BDS-2 only, the PPP result based on BDS-3 and BDS-2 has been significantly improved.
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Acknowledgements
This work was supported in part by the National Key Research and Development Program of China (No. 2019YFC1511504, No.2017YFB0503402) and National Natural Science Foundation of China (No. 41774017).
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Ai, L., Wu, J., Wang, B., Zhang, R., Li, W. (2021). The Precise Point Positioning Algorithm and Its Performance Evaluation Using Combined BDS-3 and BDS-2. In: Yang, C., Xie, J. (eds) China Satellite Navigation Conference (CSNC 2021) Proceedings. Lecture Notes in Electrical Engineering, vol 772. Springer, Singapore. https://doi.org/10.1007/978-981-16-3138-2_61
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DOI: https://doi.org/10.1007/978-981-16-3138-2_61
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