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地基单站GNSS的电离层VTEC高精度解算方法

刘琨 盛冬生 王飞飞 张红波 李建儒

刘琨, 盛冬生, 王飞飞, 张红波, 李建儒. 地基单站GNSS的电离层VTEC高精度解算方法[J]. 空间科学学报, 2021, 41(3): 417-424. doi: 10.11728/cjss2021.03.417
引用本文: 刘琨, 盛冬生, 王飞飞, 张红波, 李建儒. 地基单站GNSS的电离层VTEC高精度解算方法[J]. 空间科学学报, 2021, 41(3): 417-424. doi: 10.11728/cjss2021.03.417
LIU Kun, SHENG Dongsheng, WANG Feifei, ZHANG Hongbo, LI Jianru. High Precision Algorithm for Ionospheric VTEC Based on Single Ground-based GNSS Station[J]. Journal of Space Science, 2021, 41(3): 417-424. doi: 10.11728/cjss2021.03.417
Citation: LIU Kun, SHENG Dongsheng, WANG Feifei, ZHANG Hongbo, LI Jianru. High Precision Algorithm for Ionospheric VTEC Based on Single Ground-based GNSS Station[J]. Journal of Space Science, 2021, 41(3): 417-424. doi: 10.11728/cjss2021.03.417

地基单站GNSS的电离层VTEC高精度解算方法

doi: 10.11728/cjss2021.03.417
基金项目: 

国家自然科学基金项目(61971385,61901424)和张明高院士工作室基金项目(A171911Y104)共同资助

详细信息
    作者简介:

    刘琨,E-mail:liukun8010@126.com

  • 中图分类号: P352

High Precision Algorithm for Ionospheric VTEC Based on Single Ground-based GNSS Station

  • 摘要: 利用IGS提供的双频GNSS观测数据,分析了Kalman方法解算电离层垂直总电子含量(Vertical Total Electron Content,VTEC)存在的问题,提出了Kriging-Kalman改进解算方法,并对两种方法解算的电离层VTEC进行分析和比较.结果表明:在低纬地区,当观测卫星数量发生改变时,Kalman方法解算的VTEC存在跳变异常,Kriging-Kalman方法解算的VTEC变化较为平稳,不存在跳变现象.对比分析耀斑期间两种方法解算VTEC的变化,发现Kalman方法解算的VTEC变化明显小于耀斑引起VTEC的增量;Kriging-Kalman方法解算结果与实际变化相一致.表明Kriging-Kalman方法计算精度更高,能够更精确计算耀斑等剧烈异常空间天气活动期间的VTEC及其变化,有利于电离层VTEC日常精确监测、研究和工程应用.

     

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出版历程
  • 收稿日期:  2020-08-18
  • 修回日期:  2020-10-15
  • 刊出日期:  2021-05-15

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