Performance analysis of BDS-2 precise point positioning augmented by BDS-3 within the Asia-Pacific region

doi:10.13474/j.cnki.11-2246.2022.0010

Abstract

Abstract: BDS-2 satellite navigation system is mainly composed of GEO and IGSO constellation satellites. The geometric structure of the whole constellation changes slowly, which leads to a long convergence time when it is applied to precise point positioning(PPP). The construction of BDS-3 satellite navigation system will help to alleviate the above problems and obtain better positioning effect. In order to explore the enhancement effect of BDS-3 on BDS-2 PPP, this paper selects the 3 d observation data of 10 iGMAS stations located in the Asia-Pacific region, and first analyzes the support of three IGS analysis centers for BDS-3 precise products. Then, the positioning performance of static mode and simulated kinematic mode is analyzed. The results show that:①There are 9 BDS-3 satellites in the Asia-Pacific region can be observed. ②After applying BDS-3, the convergence time of static PPP is reduced by 40%, and the converged accuracy is improved by 46.5%. The convergence time of simulated dynamic PPP is reduced by 42.8%, and the accuracy is improved by 45.7%.

Key words: BDS-3, BDS-2, the Asia-Pacific region, precise point positioning, positioning performance

CLC Number:

P228

MA Huilin, WU Wentan, WU Xiuli. Performance analysis of BDS-2 precise point positioning augmented by BDS-3 within the Asia-Pacific region[J]. Bulletin of Surveying and Mapping, 2022, 0(1): 56-60.

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