GNSS World of China

Volume 45 Issue 5
Oct.  2020
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WANG Yongzhen, YANG Fan, ZHU Yaguang. GNSS high precision velocity determination model considering satellite non-circular orbit correction[J]. GNSS World of China, 2020, 45(5): 40-45. doi: 10.13442/j.gnss.1008-9268.2020.05.007
Citation: WANG Yongzhen, YANG Fan, ZHU Yaguang. GNSS high precision velocity determination model considering satellite non-circular orbit correction[J]. GNSS World of China, 2020, 45(5): 40-45. doi: 10.13442/j.gnss.1008-9268.2020.05.007
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GNSS high precision velocity determination model considering satellite non-circular orbit correction

doi: 10.13442/j.gnss.1008-9268.2020.05.007
  • 1.

    Shandong electric power engineering consulting institute co.LTD,Jinan 250013,China

  • 2.

    CCCC-FHDI Engineering Co.,LTD,Guangzhou 510230,China

  • Publish Date: 2021-02-24
    Abstract
  • The calculation formula of satellite non-circular orbit correction and the processing strategy of high-precision velocity determination considering this correction were introduced.Observations of 12 IGS stations distributed around the world were used to evaluate the influence of the correction.The results show that the accuracy of velocity determination method based on carrier phase difference improve by 8％, 9％ and 10％ in E, N and U after correction, respectively and the accuracy of three-dimensional velocity is corrected from 9.9 mm／s to 8.9 mm／s.For the raw Doppler velocity determination method, the correction values of E and N are the same as the carrier phase difference method,and the correction value of U is about half of the carrier phase difference method.

     

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