21425.網(wǎng)絡rtk關(guān)鍵算法及cors系統(tǒng)完備性監(jiān)測

1、東南大學碩士學位論文網(wǎng)絡RTK關(guān)鍵算法及CS系統(tǒng)完備性監(jiān)測姓名：王偉亮申請學位級別：碩士專業(yè)：交通運輸工程指導教師：高成發(fā)20120523AbstractAbstractTheriseofNetworkRTKhasmadetheestablishmentofcogsanewfocusofthedevelopmentofGPStechnologyMeanwhile，theintegritymonitoringofCOgssystemhas

2、gotmoreandmoreattentionSupportedbytheNationalNaturalScienceFoundation(No41074021)，thisthesisconcentratedonthekeyalgorithmsofNetworkRTKandintegritymonitoringofCOgssystemThemaincontributionsofthisthesisaleasfollows：Preproc

3、essingofobservationdataisthepremiseofNetworkRTKdataprocessingAnewmethodofcycleslipdetectionandrepairusingDopplerobservationsinNetworkRTKhasbeenputforwardFixofintegerambiguityofmediumlongbaselinesisthekeytoNetworkRTKdatap

4、rocessingA“Three。stepmethod”hasbeenusedinthisthesis：Firstlywidelaneambiguityisresolved；thenfloatsolutionofLIambiguityisresolvedusingionosphorefreecombination；lastlyfloatsolutionofL1ambiguityisfixedtointegerusingLAMBDAalg

5、ofithmIntheresolutionofwidelaneambiguityanowmethodbasedonimprovedcarrierphasesmoothedpseudorangehasbeenbroughtoutIntheresolutionofL1ambiguityabsolutezenithtrophosphcredelaymethodisusedwhenelevationangleofsatelliteislower

6、than40degrees；relativezenithtrophospheredelaymethodisusedwhenelevationangleofsatelliteishigherthan40degrees，andthenKalmanfilterisusedforresolutionofzenithdelayandfloatsolutionofLlambiguityInthefixofLIambiguitya‘Fixmethod

7、ofambiguitybasedonRatiofactorandProbabilityStatistics”isproposedTheintegritymonitoringofCORSsystemhasgotmoreandmoreattentionOnbasisofIndexSystemofintegritymonitoringofCOgs，researchonintegritymonitoringofsatellitesubsyste

8、m，basestationsubsystemanduSorsubsystemhasbeendoneAtlastmodulestructureofintegritymonitoringofCOgsisdesignedAnd，basedonNetworkRTKcentercontrolsoftwareEarthNet20developedbySoutheastUniversitymoduleofintegritymonitoringofCO