Application of Geodetic Receivers to Timing and Time Transfer

(整期优先)网络出版时间:2005-01-11
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TwomethodsforsmoothingpseudorangeobservablebyCarrierandDopplerarediscussed.ThentheprocedurebasedontheRINEXobservationfilesistestedusingtheAshtechZ-XII3TgeodeticreceiversdrivenbyastableexternalfrequencyatUNSO.Thispaperproposestoadaptthisprocedureforthelinksbetweengeodeticreceivers,inordertotakeadvantageofthePcodesavailableonL1andL2.Thisnewprocedureusesthe30-secondRINEXobservationsfiles,thestandardoftheInternationalGPSService(IGS),andprocessestheionosphere-freecombinationofthecodesP1andP2;thesatellitepositionsarededucedfromtheIGSrapidorbits,availableaftertwodays.