Preliminary Performance Evaluation of BeiDou Global Ionospheric Delay Correction Model

ZHOU Renyu; HU Zhigang; SU Mudan; LI Junzheng; LI Pengbo; ZHAO Qile

doi:10.13203/j.whugis20170428

Volume 44 Issue 10

Oct. 2019

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Geomatics and Information Science of Wuhan University > 2019 > 44(10): 1457-1464. > DOI: 10.13203/j.whugis20170428

ZHOU Renyu, HU Zhigang, SU Mudan, LI Junzheng, LI Pengbo, ZHAO Qile. Preliminary Performance Evaluation of BeiDou Global Ionospheric Delay Correction Model[J]. Geomatics and Information Science of Wuhan University, 2019, 44(10): 1457-1464. DOI: 10.13203/j.whugis20170428

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Preliminary Performance Evaluation of BeiDou Global Ionospheric Delay Correction Model

1.
GNSS Research Center, Wuhan University, Wuhan 430079, China
2.
Beijing Institute of Tracking and Telecommunication Technology, Beijing 100094, China
3.
Institute of Surveying and Mapping, University of Information Engineering, Zhengzhou 450002, China

Funds:

The National Natural Science Foundation of China 41604029

The National Natural Science Foundation of China 41574027

The National Natural Science Foundation of China 41574030

More Information

Author Bio:
ZHOU Renyu, PhD candidate, specializes in performance evaluation of BeiDou system. E-mail: ry.zhou@whu.edu.cn
Corresponding author:
HU Zhigang, PhD, associate professor. E-mail: zhigang.hu@whu.edu.cn
Received Date: February 21, 2019
Published Date: October 04, 2019

Graphical Abstract

Abstract

Abstract

The BeiDou global navigation system was officially launched in 2017 and will adopt a new BeiDou global ionospheric delay correction model(BDGIM). Using high-precision grid ionospheric data released by CODE and the Slant ionospheric delay derived from dual-frequency observations as a reference, the accuracy of the BDGIM model is analyzed and evaluated, and compared with the BeiDou Klobuchar and GPS Klobuchar models. The results show that in the region of China, the BDGIM model and the BeiDou Klobuchar model are comparable in accuracy and superior to the GPS Klobuchar model. On a global scale, the accuracy of the BDGIM model is better than that of the BeiDou Klobuchar and the GPS Klobuchar models. Different ionospheric models are implemented for single point positioning. The results show that the BDGIM model has a 13% improvement over the positioning accuracy of the BeiDou Klobuchar model, and a 7%-10% improvement over the GPS Klobuchar model.
- BeiDou-3,
- BDGIM,
- BeiDou Klobuchar,
- GPS Klobuchar,
- single point positioning

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References (13)

References

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