| Ionospheric eclipse factor method (IEFM) for determining the ionospheric delay using GPS data |
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| 作者姓名： | YUAN Yunbin OU Jikun |
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| 作者单位： | Key Laboratory of Dynamic Geodesy, Institute of Geodesy and Geophysics, Chinese Academy of Sciences, Wuhan 430077, China,Key Laboratory of Dynamic Geodesy, Institute of Geodesy and Geophysics, Chinese Academy of Sciences, Wuhan 430077, China |
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| 基金项目： | 国家自然科学基金，Danish National Science Foundation;Chinese Academy of Sciences，山东大学校科研和教改项目 |
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| 摘 要： | By establishing the ionospheric eclipse factor (IEF) λ of the ionospheric pierce point (IPP) and its ionospheric influence factor (IFF) λ, and combining λ, λ with t of IPP, a new method of modeling high-precision ionospheric delay using GPS data-ionospheric eclipse factor method (IEFM)-is presented in this paper. The IEFM can effectively select the proper ionospheric models to model the total electron content (TEC) with different changes corresponding to annual, seasonal and diurnal variations. Initial experimental results show that the correction precision of ionospheric delay modeled by the IEFM seems to be close to that of using L3 GPS observations to directly correct the corresponding ionospheric delay.
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| 关 键 词： | global positioning system (GPS) ionospheric delay total electron content ionospheric eclipse fact |
Ionospheric eclipse factor method (IEFM) for determining the ionospheric delay using GPS data |
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| YUAN Yunbin,OU Jikun.Ionospheric eclipse factor method (IEFM) for determining the ionospheric delay using GPS data[J].Progress in Natural Science,2004,14(9):800-804. |
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| Authors: | YUAN Yunbin OU Jikun |
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| Institution: | Key Laboratory of Dynamic Geodesy, Institute of Geodesy and Geophysics, Chinese Academy of Sciences, Wuhan 430077, China |
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| Abstract: | By establishing the ionospheric eclipse factor (IEF) λ of the ionospheric pierce point (IPP) and its ionospheric influence factor (IFF) λ, and combining λ, λ with t of IPP, a new method of modeling high-precision ionospheric delay using GPS data-ionospheric eclipse factor method (IEFM)-is presented in this paper. The IEFM can effectively select the proper ionospheric models to model the total electron content (TEC) with different changes corresponding to annual, seasonal and diurnal variations. Initial experimental results show that the correction precision of ionospheric delay modeled by the IEFM seems to be close to that of using L3 GPS observations to directly correct the corresponding ionospheric delay. |
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| Keywords: | global positioning system (GPS) ionospheric delay total electron content ionospheric eclipse factor method |
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