RTCM报文详细介绍PPT课件

.,1,RTCMDataFormat(RadioTechnicalCommissionforMaritimeServices),.,2,RINEXRawGPSstaticdataformatfordataprocessingandarchiveNMEAStandardrelatedtodatacommunicationbetweenmarineelectronicdevices.TransmissionofGPSpositionfromGPSreceivertootherdevices(e.g.GPSreceivertoPDA)ForrealtimepositioningRTCMSC-104TransmissionofGPScorrectionfromGPSreferencestationtoGPSRoverForDGPS/RTKsurveys,OverviewofCommonGPSDataFormat,.,3,Outline,ExampleofusingRTCMDataFormatAboutRTCMRTCMDataStructureRTCMMessageTypes,.,4,RTCMusinginSatRef,SatRefSystemDGPSSingle-RTKNetwork-RTKAllGPScorrectionsfromSatRefareinRTCM-2.1dataformat.,.,5,AboutRTCM,.,6,RadioTechnicalCommissionforMaritimeServices,VariousSpecialCommitteessetthestandardsforInternationalmaritimeradionavigationandradiocommunicationExamples:GPSApplicationsElectronicCharts.,.,7,WhatisRTCMSC-104?,RTCMSpecialCommittee(SC)104istheoneconcernedGPScorrectionsignal.RTCMdataformatrelatedtoGPScorrectionsiscalledRTCMSC-104dataformat.Compactbinarydatagoodforreal-timeprocessing,.,8,WhatisRTCMSC-104?,DifferentversionsRTCM-2.0(Codecorrection-DGPS)RTCM-2.1(Code+Phasecorrection-RTK)RTCM2.2(+GLONASS)RTCM2.3(.+GPSAntennaDefinition)RTCM3.0(.+NetworkRTK&GNSS),.,9,RTCMDataStructure(Versions2.0-2.3),.,10,RTCMDataStructure,Eachdatarecordcontainsseveralmessagetypesforvariouscontents.Message1,Message2.MessageNEachmessagecomprisesheaderandbodyHeader:messagetype,time,lengthofmessage,Body:dataforeverydatatype,.,11,RTCMMessageTypes(Versions2.0-2.3),.,12,RTCMMessageTypes,.,13,RTCMMessageTypes,18-21messagesaddedinRTCM2.1,23-24messagesaddedinRTCM2.3,31-36messagesaddedinRTCM2.2,.,14,RTCMMessageTypes,31-36messagesaddedinRTCM2.2,.,15,RTCMRawData,Binarydata,.,16,RTCMMessageType1,1.PseudorangeCorr.2.RangeRateCorr.,.,17,RTCMMessageType3+22,.,18,RTCMMessageType20,.,19,RTCMMessageType21,.,20,RTCMversion3.0,.,21,RTCM3.0NewdatastructuredevelopedfornetworkRTKapplications.newsignalsL2CandL5GNSSsystemdataCompactDataStructureRTCM2.00.5kbit/sec.(DGPS)RTCM2.1-2.3requires5kbit/sec(DGPS+RTK)RTCM3.0.requires2kbit/sec,RTCMversion3.0,.,22,FourGroupsofRTCM3.0GNSSRTKmessages(RTCM2004),.,23,References,RTCMRecommendedStandardsforDifferentialNAVSTARGPS/pubs/dgps/rctm104/Default.htmRTCMOfficialWebsite/DGPSDataFormats2.0www.geopp.de/download/