吴继忠,钱晓山

• 1:南京工业大学测绘科学与技术学院
• 2:上海市测绘院

摘要(Abstract)：

为了评估高阶电离层对低纬度区域连续运行参考站(CORS)网的影响,该文利用GAMIT/GLOBK处理深圳市北斗连续运行卫星定位服务系统(SZBDCORS)2017—2020年的观测数据,分析了高阶电离层对该区域参考站坐标的影响规律。实验结果表明:通过施加高阶电离层改正,北方向、东方向和高程方向加权均方根值改善幅度依次为20.6%、22.5%、26.8%;在空间尺度上,高阶电离层对SZBDCORS各测站影响呈现为向南偏移,其平均偏移量可达4.75 mm;从时间尺度上看,夏季受到的影响最大,冬季受到的影响最小。因此,低纬度区域CORS网的数据处理必须考虑高阶电离层改正。

关键词(KeyWords)： 高阶电离层延迟;纬度;CORS网;全球电离层格网

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(41504024)

作者(Author): 吴继忠,钱晓山

DOI: 10.16251/j.cnki.1009-2307.2021.12.008

参考文献(References)：

• [1] PIREAUX S,DEFRAIGNE P,WAUTERS L,et al.Higher-order ionospheric effects in GPS time and frequency transfer[J].GPS Solutions,2010,14(3):267-277.
• [2] KEDAR S,HAJJ G A,WILSON B D,et al.The effect of the second-order GPS ionospheric correction on receiver positions[J].Geophysical Research Letters,2003,30(16):1017639.
• [3] PETRIE E J,KING M A,MOORE P,et al.Higher-order ionospheric effects on the GPS reference frame and velocities[J Journal of Geophysical Research Atmospheres 2010,115(B3):B03417.
• [4] HERNáNDEZ-PAJARES M,JUAN J M,SANZ J,et al.Second-order ionospheric term in GPS:implementation and impact on geodetic estimates[J].Journal of Geophysical Research Atmospheres,2007,112(B8):B08417.
• [5] 姜卫平，李昭，邓连生，等.高阶电离层延迟对GPS坐标时间序列的影响分析[J].科学通报，2014,59(10):913-923.(JIANG Weiping,LI Zhao,DENG Liansheng,et al.Impact of higher order ionospheric delay on continuous GPS coordinate time series[J].Chinese Science Bulletin,2014,59(10):913-923.)
• [6] 邓连生，姜卫平，李昭，等.电离层高阶项改正对参考框架实现及测站坐标的影响分析[J].武汉大学学报(信息科学版),2015,40(2):193-198.(DENG Liansheng,JIANG Weiping,LI Zhao,et al.Analysis of higher-order ionospheric effects on reference frame realization and coordinate variations[J].Geomatics and Information Science of Wuhan University,2015,40(2):193-198.)
• [7] 岳彩亚，党亚民，戴华阳，等.电离层高阶项改正对GNSS基准站分布的影响[J].测绘科学，2018,43(9):16-21.(YUE Caiya,DANG Yamin,DAI Huayang,et al.Research on the effect of high order terms of the ionization layer on the distribution of different GNSS reference stations[J].Science of Surveying and Mapping,2018,43(9):16-21.)
• [8] 余新平，成英燕，邱荣海，等.电离层高阶项改正对我国陆态网测站坐标的影响[J].大地测量与地球动力学，2016,36(8):714-718.(YU Xinping,CHENG Yingyan,QIU Ronghai,et al.Analysis of higher-order ionospheric effects on CMONOC coordinate variations[J].Journal of Geodesy and Geodynamics,2016,36(8):714-718.)
• [9] 周要宗，匡翠林，窦邵华.高阶电离层延迟对中国区域双差定位影响研究[J].大地测量与地球动力学，2019,39(5):506-510.(ZHOU Yaozong,KUANG Cuilin,DOU Shaohua.Analysing higher-order ionospheric effects on GNSS double-differenced positioning in China region[J].Journal of Geodesy and Geodynamics,2019,39(5):506-510.)
• [10] 朱春春，李征航，屈小川，等.高阶电离层延迟对GPS双差观测值和基线向量的影响[J].大地测量与地球动力学，2015,35(1):81-86.(ZHU Chunchun,LI Zhenghang,QU Xiaochuan,et al.Higher-order ionospheric effects on the GPS double difference observation and baseline vectors[J].Journal of Geodesy and Geodynamics,2015,35(1):81-86.)
• [11] MORTON Y T,VAN GRAAS F,ZHOU Q H,et al.Assessment of the higher order ionosphere error on position solutions[J].Navigation,2009,56(3):185-193.
• [12] 张小红，任晓东，郭斐.顾及电离层延迟高阶项改正的精密单点定位[J].武汉大学学报(信息科学版),2013,38(8):883-887.(ZHANG Xiaohong,REN Xiaodong,GUO Fei.Influence of higher-order ionospheric delay correction on static precise point positioning[J].Geomatics and Information Science of Wuhan University,2013,38(8):883-887.)
• [13] 吴玮.利用GPS双频观测值实现PPP电离层延迟高阶项改正[J].南京工业大学学报(自然科学版),2015,37(1):94-98.(WU Wei.Modelling of higher-order ionospheric terms for precise point positioning using dual frequency GPS observations[J].Journal of Nanjing Tech University(Natural Science Edition),2015,37(1):94-98.)
• [14] ELMAS Z G,AQUINO M,MARQUES H A,et al.Higher order ionospheric effects in GNSS positioning in the European region[J].Annales Geophysicae,2011,29(8):1383-1399.
• [15] SHUMWAY R H,STOFFER D S.Time series analysis and its applications[M].Heidelberg:Springer International Publishing,2017.