u-blox-北斗模块技术手册-NEO-M8_DataSheet

NEO-M8u-bloxM8concurrentGNSSmodulesDataSheetHighlights:•ConcurrentGNSSengineforGPS,GLONASS,BeiDouandQZSS•Industryleading–167dBmnavigationsensitivity•Productvariantstomeetperformanceandcostrequirements•Combineslowpowerconsumptionandhighsensitivity•Simpleintegrationwithu-bloxwirelessmodules•BackwardcompatiblewithNEO-7,NEO-6andNEO-5families©2013,u-bloxAG.u-blox®isaregisteredtrademarkofu-bloxHoldingAGintheEUandothercountries.ARM®istheregisteredtrademarkofARMLimitedintheEUandothercountries.UBX-13003366-R02Page2of26NEO-M8-DataSheetContentsContents..............................................................................................................................31Functionaldescription..................................................................................................51.1Overview..............................................................................................................................................51.2Productfeatures...................................................................................................................................51.3Performance.........................................................................................................................................61.4Blockdiagram.......................................................................................................................................71.5GNSS....................................................................................................................................................71.5.1GPS...............................................................................................................................................71.5.2GLONASS......................................................................................................................................71.5.3BeiDou..........................................................................................................................................71.5.4Galileo...........................................................................................................................................81.5.5QZSS.............................................................................................................................................81.6AssistedGNSS(A-GNSS).......................................................................................................................81.6.1AssistNowTMOnline........................................................................................................................81.6.2AssistNowTMOffline.......................................................................................................................81.6.3AssistNowTMAutonomous..............................................................................................................81.7AugmentationSystems.........................................................................................................................91.7.1Satellite-BasedAugmentationSystem(SBAS).................................................................................91.7.2DifferentialGPS(D-GPS)................................................................................................................91.8Odometer.............................................................................................................................................91.9Datalogging(NEO-M8N)......................................................................................................................91.10EXTINT:Externalinterrupt.................................................................................................................91.10.1PinControl.........................