| Ionospheric eclipse factor method (IEFM) for determining the ionospheric delay using GPS data |
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| 作者姓名： | YUAN Yunbin* and OU Jikun(Key Laboratory of Dynamic Geodesy Institute of Geodesy and Geophysics Chinese Academy of Sciences Wuhan 430077 China) |
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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 |
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| 基金项目： | theNationalNaturalScienceFoundationofChina(GrantNo.40204001)，DanishNationalScienceFoundation，ChineseAcademyofSciences(030185)andShandongUniversityofTechnology(SD20035) |
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| 摘 要： | Foracertainionosphericregion,duetomanyfactorsespeciallytheinvisiblesolarradiation,thechangelawofthetotalelectroncontent(TEC)isdifferentindaytimeandnighttime.ThecorrespondingmathematicalexpressionsofTECshouldalsobedifferent.Therefore,whenusingGPStomodelpreciseionosphericdelay,oneofthecriticalfactorsistoexactlydistinguishtheionosphericdaytimeandnighttimeandreasonablydescribetheTECchangecharacteristicsofthedifferentperiodsattheionosphericpiercepoint(IPP).Inthepast,inthefieldsofGPSresearcha…
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