Acta Geodaetica et Cartographica Sinica >

2016 , Vol. 45 >Issue 9: 1028 - 1034

DOI: https://doi.org/10.11947/j.AGCS.2016.20150296

Estimation Model and Accuracy Analysis of BeiDou/GPS Real-time Precise Satellite Clock Error Integrated Resolving

  • CHEN Liang ,
  • GENG Changjiang ,
  • ZHOU Quan
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  • 1. GNSS System Engineering Center, China Academy of Aerospace Electronics Technology, Beijing 100094, China;
    2. Test and Assessment Research Center, China Satellite Navigation Office, Beijing 100094, China;
    3. Helmholtz Centre Potsdam, German Research Centre for Geosciences(GFZ), Telegrafenberg, Potsdam 14473, Germany

Received date: 2015-06-16

  Revised date: 2016-01-11

  Online published: 2016-09-29

Supported by

State Scholarship Fund for International Innovative Aerospace Talent Project(No.[2015]5138)

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Abstract

Real-time high-precise satellite orbit and clock products are needed in real-time GNSS precise point positioning (PPP). In this paper, Estimation model and strategy of multi-GNSS precise satellite clock integrated resolving are researched and BeiDou/GPS real-time precise clock integrated estimation algorithm is realized by filter. Real-time simulation test results show: the STD accuracy of BeiDou/GPS real-time clock estimated in this paper compared to GFZ multi-GNSS precise clock(GBM) is about 0.15ns; horizontal accuracy after convergence of GPS kinematic PPP using simulation real-time clock products estimated in this paper is better than 5cm and vertical accuracy is better than 10cm, respectively; in BeiDou kinematic PPP test, horizontal and vertical accuracy results are same as the results using GFZ multi-GNSS precise clock(GBM) products, and the decimeter positioning can be realized.

Key words： BeiDou navigation satellite system (BDS); GPS; precise clock integrated estimation; real-time PPP; accuracy analysis

Cite this article

CHEN Liang , GENG Changjiang , ZHOU Quan . Estimation Model and Accuracy Analysis of BeiDou/GPS Real-time Precise Satellite Clock Error Integrated Resolving[J]. Acta Geodaetica et Cartographica Sinica, 2016 , 45(9) : 1028 -1034 . DOI: 10.11947/j.AGCS.2016.20150296

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