PAN Yuming, DING Lele, Meng Fanxiao, WANG Zhen. Performance Analysis of Multi -GNSS Dynamic Precision Point Positioning[J]. GNSS World of China, 2018, 43(2): 12-19. DOI: 10.13442/j.gnss.1008-9268.2018.02.003
Citation: PAN Yuming, DING Lele, Meng Fanxiao, WANG Zhen. Performance Analysis of Multi -GNSS Dynamic Precision Point Positioning[J]. GNSS World of China, 2018, 43(2): 12-19. DOI: 10.13442/j.gnss.1008-9268.2018.02.003

Performance Analysis of Multi -GNSS Dynamic Precision Point Positioning

  • Based on the theory and method of GPS precise point positioning, this paper introduced a PPP observation model with multiple system combinations. This paper used observations from GPS, GLONASS, Galileo and BDS to study and analyze the positioning performance of 4-system combined PPP. The result showed that the accuracy of multi-GNSS PPP is much higher than single system PPP, GPS+GLONASS+GALILEO+BDS combination dynamic PPP in the three directions of the average deviation is about 0.7cm, 0.6cm and 1.7cm, the convergence time is about 15 ~ 20min. When the cutoff elevation angle increased, there was still a sufficient number of satellites. When the cutoff angle reached 30 degrees, still can reach cm-level positioning accuracy. The result of PPP solution on the airborne dynamic data showed that the result of the foursystem combination solves best with the result of GrafMov, and outperforms of two-system and single-system PPP.
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