GNSS World of China

Volume 47 Issue 6
Dec.  2022
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Article Navigation >  GNSS World of China  > 2022  >  47(6): 102-108
GUAN Qinglin, FAN Chunming, WANG Junjie. Single-frequency single-point positioning performance analysis of combined BDS-3/GNSS systems in Asia-Pacific[J]. GNSS World of China, 2022, 47(6): 102-108. doi: 10.12265/j.gnss.2022042
Citation: GUAN Qinglin, FAN Chunming, WANG Junjie. Single-frequency single-point positioning performance analysis of combined BDS-3/GNSS systems in Asia-Pacific[J]. GNSS World of China, 2022, 47(6): 102-108. doi: 10.12265/j.gnss.2022042
shu

Single-frequency single-point positioning performance analysis of combined BDS-3/GNSS systems in Asia-Pacific

doi: 10.12265/j.gnss.2022042
  • 1.

    College of Geography and Oceanography, Minjiang University, Fuzhou 350108, China

  • 2.

    Institute of Satellite Navigation and Space Information Engineering, Minjiang University, Fuzhou 350108, China

  • Received Date: 2022-03-21
    Available Online: 2022-11-14
    Abstract
  • BeiDou-3 Navigation Satellite System (BDS-3) has provided positioning navigation and timing (PNT) services for users worldwide. This paper analyzed the single-frequency single-point positioning (SPP) performance of BDS-3 and its combination with other Global Navigation Satellite System (GNSS) in terms of the mean number of visible satellites, geomettic dilution of precision (GDOP), positioning accuracy, positioning success ratio and pseudo-range residuals using 7 day observations collected at MGEX WHU2 station. The results show that, in the Asia-Pacific region, the RMS of BDS-3 SPP results is 1.19 m, 2.34 m, and 2.38 m in horizontal, vertical and three-dimensional (3D), respectively, the performance of BDS-3 SPP is better that the GPS, GLONASS and Galileo. The 3D accuracy of BDS-3 SPP is improved by 54.8%, 27.2%, 86.4% and 1.2%, respectively, compared with the BDS-2, GPS, GLONASS and Galileo SPP. The accuracy of the combined BDS/GPS/Galileo SPP is 0.96 m, 1.66 m and 1.77 m in horizontal, vertical and 3D, respectively, which is the best among the multi-GNSS SPP. Compared with the BDS SPP results, the accuracy of the combined BDS/GPS/Galileo SPP is improved by 18.6%, 19.4%, and 17.3% in horizontal, vertical and 3D, respectively.

     

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