| 电离层VTEC与气象要素对GPS定位结果的影响 |
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| 引用本文： | 刘艳春.电离层VTEC与气象要素对GPS定位结果的影响[J].测绘通报,2020,0(11):116. |
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| 作者姓名： | 刘艳春 |
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| 作者单位： | 福建省测绘院, 福建 福州 350003 |
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| 基金项目： | 国家自然科学基金（41974031）；福建省工业引导性（重点）资助项目（2019H0044） |
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| 摘 要： | 本文对FJCORS基准站定位误差序列进行了分析，发现观测误差呈明显的季节性变化，峰值出现在7月，同时分析了定位误差与电离层VTEC和气象要素的关系。结果表明，定位误差与VTEC不相关，而与气象要素存在较强的相关性，气压降低或气温、水汽压升高直接导致误差呈线性增加。
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| 关 键 词： | FJCORS 定位误差 季节性变化 VTEC 气象要素 |
| 收稿时间： | 2020-01-03 |
The impact of ionospheric VTEC and meteorological elements on GPS positioning results |
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| LIU Yanchun.The impact of ionospheric VTEC and meteorological elements on GPS positioning results[J].Bulletin of Surveying and Mapping,2020,0(11):116. |
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| Authors: | LIU Yanchun |
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| Institution: | Fujian Surveying and Mapping Institute, FuZhou 350003, China |
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| Abstract: | The positioning errors sequences of FJCORS reference stations are analysed in the paper, it's found that the observation errors show obvious seasonal variation, and the peak value appears in July for each station. By analyzing the relationship between the positioning errors and ionospheric VTEC and meteorological elements respectively, it shows that the positioning error is not related to VTEC, but has a strong correlation with meteorological elements. The decrease of air pressure or the increase of air temperature and vapor pressure will directly lead to the linear increase of errors. |
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| Keywords: | FJCORS positioning error seasonal variation VTEC meteorological elements |
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