YAN Li, HUANG Dingfa, ZHU Dongwei. Development and Performance Analysis of a High Precision BDS Baseline Processing Software[J]. Geomatics and Information Science of Wuhan University, 2017, 42(12): 1785-1791. DOI: 10.13203/j.whugis20150452
Citation: YAN Li, HUANG Dingfa, ZHU Dongwei. Development and Performance Analysis of a High Precision BDS Baseline Processing Software[J]. Geomatics and Information Science of Wuhan University, 2017, 42(12): 1785-1791. DOI: 10.13203/j.whugis20150452

Development and Performance Analysis of a High Precision BDS Baseline Processing Software

Funds: 

The National Natural Science Foundation of China 41374032

2013 Doctoral Innovation Fund in Southwest Jiaotong University and the Fundamental Research Funds in Central Universities 

Program for Changjiang Scholars and Innovative Research Team in Southwest Jiaotong University PCSIRT

More Information
  • Author Bio:

    YAN Li, PhD candidate, specializes in GNSS data processing. E-mail: yanli20060675@foxmail.com

  • Corresponding author:

    HUANG Dingfa, PhD, professor. E-mail: dfhuang@home.swjtu.edu.cn

  • Received Date: December 15, 2015
  • Published Date: December 04, 2017
  • BDS(BeiDou Navigation Satellite System) is the first heterogeneous constellation and the only currently fully operational tri-band navigation system. However, the international and domestic market is still dominated by GPS(Global Positioning System), since BDS starts relatively late. Because of the differences between BDS and GPS in space-time reference frame, constellation structure, signals and data quality, the existing high precision GPS data processing software can not directly deal with the BDS data. In order to realize high precision BDS positioning, the corresponding BDS data processing software must be developed as soon as possible. In this paper, the key issues of BDS/GPS high precision relative positioning are studied, and static relative positioning algorithm model is proposed. Moreover, this paper introduces a self-developed high precision BDS and GPS baseline processing software BGO(BDS/GPS Office), which contains BDS, GPS and combined baseline processing modules. The software is applied to process a CPI control network of high speed railway. The results show that BDS baseline precision is better than 1 mm in X and Z direction, and is better than 2 mm in Y direction. The experiment indicates that BDS baseline solutions meet the requirement of high speed railway CPI data processing. GPS baseline solutions from BGO are equivalent to the results from TGO(Trimble Geomatics Office) and Bernese software, and BDS/GPS combined baseline solutions from BGO are well-matched with the solutions from TBC(Trimble Business Center) software. Comparing BDS and GPS alone system, BDS/GPS combined could improve qualified rate and precise of baseline solutions.
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