测绘通报 ›› 2020, Vol. 0 ›› Issue (11): 116-119,123.doi: 10.13474/j.cnki.11-2246.2020.0367

• 技术交流 • 上一篇    下一篇

电离层VTEC与气象要素对GPS定位结果的影响

刘艳春   

  1. 福建省测绘院, 福建 福州 350003
  • 收稿日期:2020-01-03 出版日期:2020-11-25 发布日期:2020-11-30
  • 作者简介:刘艳春(1981-),女,硕士,高级工程师,主要研究方向为大地测量、摄影测量与遥感。E-mail:751222901@qq.com
  • 基金资助:
    国家自然科学基金(41974031);福建省工业引导性(重点)资助项目(2019H0044)

The impact of ionospheric VTEC and meteorological elements on GPS positioning results

LIU Yanchun   

  1. Fujian Surveying and Mapping Institute, FuZhou 350003, China
  • Received:2020-01-03 Online:2020-11-25 Published:2020-11-30

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。

关键词: FJCORS, 定位误差, 季节性变化, VTEC, 气象要素

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.

Key words: FJCORS, positioning error, seasonal variation, VTEC, meteorological elements

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