Performance analysis of BDS-3 precise point positioning in different periods

doi:10.13474/j.cnki.11-2246.2023.0255

Abstract

Abstract: Based on the analysis of the change of the number of BDS-3 satellites received by 23 MGEX stations in different periods, the precise point positioning (PPP) of BDS-3 data in different periods is calculated, and the effect of variation in the number of BDS-3 satellites on the accuracy and convergence time of PPP is compared and analyzed.The results show that: ①Compared with DOY 1 in 2021 and 2022, the average number of BDS-3 satellites received by the 23 MGEX stations in the world increased from 6.2 to 11.1.②After the ground station receives more BDS-3 satellites, the static PPP accuracy is increased by 11.4%, and the convergence time is shortened by 18%; The accuracy of simulated dynamic PPP is improved by 28.0%, and the convergence time is reduced by 31.9%.

Key words: BDS-3, MGEX, number of satellites, PPP, positioning accuracy

CLC Number:

P228

CUI Yang, CHEN Zhengsheng, WEI Jiaochen. Performance analysis of BDS-3 precise point positioning in different periods[J]. Bulletin of Surveying and Mapping, 2023, 0(9): 1-5.

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