Ionospheric eclipse factor method (IEFM) for determining the ionospheric delay using GPS data |
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引用本文: | YUAN Yunbin* and OU Jikun.Ionospheric eclipse factor method (IEFM) for determining the ionospheric delay using GPS data[J].自然科学进展(英文版),2004(9). |
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作者姓名: | YUAN Yunbin* and OU Jikun |
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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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