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摩托罗拉(Motorola)M12M导航模块 产品信息 M12MONCORE 导航型(NAVIGATION)的主要特点 12个并行通道 TTFF典型值 15秒 TTFF典型值 40秒 TTFF典型值 60秒 典型重捕获时间 1.0秒 天线电流检测 支持DGPS信息输入 3V时电源功耗仅为155mWM12MOncore 导航型接收器是一款优秀的具有１２通道ＧＰＳ传感器．它能作为一个组件被使用在精确定位，导航，或授时系统中．M12M能够提供精确的位置，速度，和时间等即时信息。 支持逆向差分的能力,M12M能准确的给出高精确的位置。高性能快TimeToFirstFix(TTFF)和一刹那分秒典型重捕获时间。超精密使用逆向DGPS来获取高精度,M12M的设计适合需要精确地位的场合。 高灵活度包括RTCM差分GPS支持,NMEA0183输出,2个通讯口,1个用户可控制的速度滤波器和1个天线传感电路.电源性能功耗为155mＷ@３V,不含天线．后备电池电源5mAh,可维持２周到１个月．M12M初步规格：M12MNAVIGATIONONCORETM RECEIVERPreliminarySpecification 12Channelsimultaneousoperation 15stypicalHotstartTTFF 40stypicalWarmStartTTFF 60stypicalColdStartTTFF 1.0sinternalreacquisitionAntennaCurrentsensedetectionInverse/DGPSsupport155mWPowerconsumption@3VOperation GeneralCharacteristicsReceiverArchitecture12parallelchannelL11575.42MHzC/Acode(1.023MHzchiprate)Codepluscarriertracking(carrieraidedtracking) TrackingCapability12simultaneoussatellitevehiclesPerformanceCharacteristicsDynamicsVelocity:1000knots(515m/s) 1000knots(515m/s);ataltitudes 60,000ft.(18000m)Acceleration:4gJerk:5m/s3Vibration:7.7gperMilitaryStandard810E AcquisitionTime(TimeToFirstFix,TTFF)(Testedat 40 Cto+85 C) 15stypicalTTFF-hot(withcurrentalmanac,position,timeandephemeris) 40stypicalTTFF-warm(withcurrentalmanac,position,time) 60stypicalTTFF-cold(Nostoredinformation) 1.0sinternalreacquisition(typical)PositioningAccuracy 5m,1-sigma 10m,2-sigmaTimingAccuracy(1PulsePerSecond,1PPS) 500ns,2-sigmaDatumWGS-84defaultOneuserdefinabledatumAntennaAntennaRequirementsActiveantennamodulepoweredbyreceivermodule(80mAmax)10dBto50dBexternalantennagainmeasuredatreceiverinput3Vdcor5VdcantennapowerprovidedviaheaderconnectorSerialCommunicationOutputMessagesLatitude,longitude,height,velocity,heading,timeMotorolabinaryprotocolat9600baudNMEA0183(GGA,GLL,GSA,GSV,RMC,VTG,ZDA)Softwareselectableoutputrate(continuousorpoll)TTLinterface(0to3V)SecondCOMportforRTCMinputElectricalCharacteristicsPowerRequirements2.8Vdcto3.3Vdc;50mVp-pripple(max)Keep-Alive BATTPowerExternal2.2Vdcto3.2Vdc,5uAtypical@2.7Vdc@25oC PowerConsumption155mW@3VwithoutantennaPhysicalCharacteristics Dimensions40.0x60.0x13.0mm(1.57x2.36x0.53in.)WeightReceiver12.5g ConnectorsData/power:10pin(2x5)unshroudedheaderon0.050in.centers(straightconfiguration)RF:rightangleMMCXAntennatoReceiverInterconnectionSinglecoaxialcable(withpoweroncenterconductortosupportactiveantenna)AntennasensecircuitEnvironmentalCharacteristicsOperatingTemperature-40oCto+85oCStorageTemperature-40oCto+105oCHumidity95%overdrybulbrangeof+38oCto+85oCAltitude18,000m(60,000ft.)maximum 18,000m(60,000ft.)forvelocities 515m/s(1000knots)Miscellaneous StandardFeatures MotorolaDGPScorrectionsat9600baudonCOM1RTCMSC-104inputType1andType9messagesforDGPSat2400,4800or9600baudonCOM2InverseDGPSsupport OptionalFeaturesLithiumbatterybackup