Abstract
In order to solve the problem that Global Navigation Satellite System (GNSS) is difficult to achieve rapid convergence for precise point positioning (PPP). Low Earth Orbit (LEO) satellites that broadcast navigation signals are presented for augmentation of GNSS navigation performance, especially for PPP ambiguity convergence. This paper simulates BeiDou Navigation Satellite System (BDS) and the constellation consisting of 150 LEO satellites. The effects of LEO navigation satellites on satellite visibility, position dilution of precision (PDOP), PPP convergence speed and accuracy are analyzed. The results show that with the addition of LEO navigation satellites, the global averaged number of visible satellite is increased by about 6, with the improvement of about 52%; the averaged PDOP value is reduced to 1.22, with the reduction of about 25%; the PPP convergence time is reduced from about 30 min to 1–2 min, and PPP accuracy is improved to 2 cm in 3D.
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Acknowledgements
This work was supported by the Shandong Provincial Natural Science Foundation, China (Grant number ZR2018PD006); Scientific Research Foundation of Shandong University of Science and Technology for Recruited Talents (Grant number 2017RCJJ072); and Talent introduction plan for Youth Innovation Team in universities of Shandong Province (innovation team of satellite positioning and navigation).
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Su, X. et al. (2021). Navigation Performance Analysis of LEO Augmented BDS-3 Navigation Constellation. 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_49
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DOI: https://doi.org/10.1007/978-981-16-3138-2_49
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