A New Approach to GPS Carrier-Phase Ambiguity Resolution Using a Reference Receiver Network（Captain J. Raquet(ION,1997)）

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1、ANewApproachtoGPSCarrier-PhaseAmbiguityResolutionUsingaReferenceReceiverNetworkCaptainJ.RaquetDepartmentofGeomaticsEngineering,TheUniversityofCalgaryBIOGRAPHYINTRODUCTIONCaptainRaquetisaPh.D.studentatTheUniversityofTheabilitytouseGPScarrier-phasemeasurementsforpre-Calgaryundersponso

2、rshipfromtheAirForceInstituteofcisepositioningdependsupontheabilitytodeterminetheTechnology.Priortohiscurrentassignment,heworkedambiguitiesinthenumberofcarrier-phasecycles.Nor-onINS/GPSintegrationforflightreferencepurposesatmally,themostprecisepositioningcanbeperformedwhenHollomanAir

3、ForceBase,NewMexico.CaptainRaquettheexactintegercarrier-phaseambiguitiesaredetermined.receivedaB.S.inAstronauticalEngineeringfromtheCarrier-phaseambiguityresolutionislimited,however,byU.S.AirForceAcademyandanM.S.inAeronaut-measurementerrorswhicharenotremovedinthedouble-ical/Astronau

4、ticalEngineeringfromTheMassachusettsIn-differencingprocesswhichiscentraltoambiguityresolu-stituteofTechnology.Hiscurrentresearchinterestsincludetiontechniques.Thesemeasurementerrorscanbegroupedusingmultiplereferencereceiversformultipathreductionintospatiallycorrelatederrors(atmosphe

5、riceffects)andandimprovingcarrier-phaseambiguityresolution.uncorrelatederrors(receivernoise,multipath,andphasecenteroffset).Becausetheatmosphericerrorsincreasewiththedistancebetweenthemobileandreferencereceiv-ABSTRACTers,theabilitytosuccessfullyperformcarrier-phaseambi-Anewapproachi

6、spresentedforperformingcarrier-phaseguityresolutiondecreaseswithdistanceaswell.ambiguityresolutionandprecisepositioningusinganet-Inprinciple,bothcorrelatedanduncorrelatederrorscouldworkofreferencereceivers.Inthisapproach,aleast-bereducedbyusingmorethanonereferencereceiver.squarescon

7、ditionadjustmentisperformedwhich“encap-Overthepastfewyears,numerousalgorithmshavebeensulates”theinformationfromallofthereferencereceiv-developedandtestedwhichuseanetworkofreferenceersintocorrectedcodeandcarrier-phasemeasurementsofreceiverstoperformdifferentialpositioningusingcodeasi

8、nglereferencereceiv