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1、中北大学学位论文DigitalConverterTestBenchSystemBasedontheDualModeAbstractDigitalconvertertestbenchchangedthetraditionaltestwayfromapurelymanualtesting.Itshortenthedigitalconverterproductionmaintenancetime,andtheautomate,intelligenttestingmethodmaketheeffectoftelemetrysystemcombinedbetter.Itshortent
2、hecostofproductionandmaintenance.Digitalconvertertestbenchisasupportinggroundtestequipmentofthetelemetrydigitalconverter.Inviewoftheresearchanddevelopmentofadvancedaircraft,thispaperdiscussesthereliabilityofthedigitalconvertertestbench,andproposedauniversal,modular,standardizeddesignofthedi
3、gitalconvertertestbench.Inordertoachieveeachindex,andgiveconsiderationtothestandardization,thesystemadoptsthefollowingtechnology:(1)Thesignalsourcetechnology;thetestplatformisinteractivebasedonFPGA,Itcanproduce33chargedinstructionsand13notchargedinstructions,anditcancontrolledtoproduce20pul
4、sesignalwhichfrequencyandpulseisadjustable.Atthesametime,thesystemuninterruptedoutputsingleframewhichhas128channelhighprecisionsynchronoussignals.(2)Dualmodecommunicationtechnology;thetestplatformintroducedadualmodecommunicationbyEthernetinterfaceandUSBinterfacetakingintoaccountthestandardi
5、zation.(3)Microcomputerterminaldataprocessingunit;focusonsoftwareintelligentinteractive,thesystemdesignbytheVBprogramminglanguage,includingthechannelselectionmodule,signaltransmissionmodule,signalmonitoringmoduleanddataanalysismodule.Testplatformofthedigitalconverterhavefourbasicfunctionssu
6、chassignalgenerator,automaticmeasurement,automaticdetection,automaticanalysis.ItNotonlycanbeusedtosimulatevariousstatesignalsofaircraftintakeoff,butalsocanautomaticallyanalyzewhetherthefunctionofdigitalconverterisperfect.Finally,onthetestingofthetestplatform,testresultsshowthat,thetestplatf
7、ormhastheadvantagesofsimplestructure,highreliability,highprecision,anditcanadapttodifferentexperimenttestingrequirements.Keyword:DigitalConverterTestBench,DualMode,Channel,Ethernet中北大学学位论文目录1．绪论1.1课题背景·····················································
