GNSS World of China

Volume 45 Issue 5
Oct.  2020
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ZHENG Lei, LIU Cheng. Relative positioning accuracy analysis of BDS-2／BDS-3／QZSS combination short baseline[J]. GNSS World of China, 2020, 45(5): 57-61. doi: 10.13442/j.gnss.1008-9268.2020.05.010
Citation: ZHENG Lei, LIU Cheng. Relative positioning accuracy analysis of BDS-2／BDS-3／QZSS combination short baseline[J]. GNSS World of China, 2020, 45(5): 57-61. doi: 10.13442/j.gnss.1008-9268.2020.05.010
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Relative positioning accuracy analysis of BDS-2／BDS-3／QZSS combination short baseline

doi: 10.13442/j.gnss.1008-9268.2020.05.010

  • Hope College of Southwest Jiaotong University,Chengdu 610000,China

  • Publish Date: 2021-02-24
    Abstract
  • In view of the impact of QZSS on the relative positioning performance of BDS-2 and BDS-3 short baselines,this paper analyzes the short baselines of different combinations of QZSS,BDS-2 and BDS-3 based on the 5km and 10km short baselines composed of IGS tracking stations relative positioning accuracy.It is found that QZSS can effectively improve the BDS-2 and BDS-3 satellite visibility and satellite space geometry,while the satellite visibility and satellite space geometry of BDS-2／BDS-3 combination is superior to any single system.In terms of positioning accuracy,the combined positioning accuracy of BDS-3 and QDSS is equivalent to BDS-2 in the case of missing data.At the same time.QZSS can effectively improve the relative positioning accuracy of BDS-2 and BDS-2／BDS-3.while BDS-3 shows better performance than QZSS in improvement of positioning accuracy of BDS-2.

     

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