GNSS导航系统参数监控.doc

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MonitoringandAssessment

ParametersonGNSS

Draft

September,2012

Contents

TOC\o1-4\h\z\u1Scope 1

2GNSSMonitoringandAssessmentParameters 1

2.1ConstellationStatus 1

2.1.1SatelliteOperationalstatus 1

2.1.2OrbitParameters 1

2.1.3DOP 1

2.2NavigationSignal 2

2.2.1User-ReceivedSignalLevel 2

2.2.2PowerSpectrum 2

2.2.3RangingCodeWaveformintheTimeDomain 2

2.2.4ModulationError 2

2.2.5CorrelationCharacteristics 3

2.3NavigationMessage 4

2.3.1NavigationMessageStatus 4

2.3.2OrbitAccuracyofBroadcastEphemeris 4

2.3.3ClockOffsetAccuracyofBroadcastEphemeris 4

2.3.4Signal-In-SpaceUserRangingError(SISURE) 4

2.3.5Signal-In-SpaceContinuity 4

2.3.6Signal-In-SpaceAvailability 5

2.3.7Signal-In-SpaceMissedAlarmRate 5

2.3.8UserRangingRateError(URRE) 5

2.3.9UserRangingAccelerationError(URAE) 5

2.3.10BroadcastIonosphericDelayModelAccuracy 5

2.3.11TGDAccuracy 6

2.3.12Inter-SystemBias(ISB)Accuracy 6

2.3.13SystemTimePerformance 6

2.3.14UTCOffsetError(UTCOE) 6

2.3.15CoordinateTransformationParameters 7

2.4ServicePerformance 7

2.4.1Position,VelocityandTiming(PVT)Accuracy 7

2.4.2Continuity 7

2.4.3Availability 7

2.4.4Integrity 8

3References 1

Appendix 3

1Scope

ThisdocumentismainlyaimedtoproposeGNSSmonitoringandassessmentparametersthroughelaboratingtheirdefinitionsandfunctions,whichcanbeappliedtothemonitoringandassessmentofinternationalGNSSOpenServices.

2GNSSMonitoringandAssessmentParameters

2.1ConstellationStatus

2.1.1SatelliteOperationalstatus

1)Definition:Thetotalnumberofsatellitescurrentlyinserviceandthehealthystateofeachsatellite.

2)Function:Basiccriterionformarkingtheavailabilityofsatellites.

2.1.2OrbitParameters

1)Definition:Ephemerisparametersfordescribingsatellitep