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1、AbstractAbstractReliabilityandaccuracyofequipmentdirectlyinfluencetheprecisionandaccuracyofresearchdata,soitisparticularlyimportanttoefficientlymonitortheinstrument.Thisarticledescribeshowtodesignanddevelopaphasenoisetestermonitoringsystem,whichallowsresearcherstotime
2、lyobtaintheoperationstatusofphasenoisetesteraswellastosimulatethefunctionsthroughthesystem.TheSystemincludesthefollowingfunctions:datacollection,graphicalsimulation,dataupload,datastorageandquery.Thisarticledescribesthedesignandimplementationoftheentirephasenoiseteste
3、rmonitoringsystem.Inthispaper,anoverallanalysisofthephasenoisetestermonitoringsystemismadeaccordingtotherequirements.Andthenthedesignofthehardwareandsoftwarearchitectureofthesystemisgiven,aswellasthefunctionofeachmodule.Finally,thedesignandimplementationofseveralkeyfu
4、nctionalmodulesaredescribedindetail,theyaredatacollection,graphicssimulation,dataupload,datastorageandquery.Inthedatacollectionmodule,themulti-threadtechnologyinthreadpoolsisappliedtoensurethestabilityandtimeliness;thedrawinglibraryprovidedinLabWindowsplatformisusedin
5、graphicalsimulationmodule;Indatauploadingmodule,UDPprotocolisappliedtoencapsulatetheinterfaceofthecommunicationwiththemaincontrolsystem,sothatthemaincontrolsystemcancallthisinterfacetoacceptthedataaphasenoisetesteruploadandobtaintheoperationstatusofthesimulationsystem
6、;Indataqueryandstorage,MySqldatabaseischosenforqueryandstorage,andthecorrespondinginterfaceisencapsulated,enablingthesystemtocallinterfacetoconnectMysqldatabaseforappropriateaction.Thecorrectnessandreliabilityofthevariousfunctionsareprovedthroughactualtestcases.Thetec
7、hniquesanddesigndescribedinthispaperwellmeetstherequirementsofthephasenoisetestersimulationsystem,thusimprovingtheefficiencyofthestaffinourcooperationresearchinstitute.Keywords:VirtualInstrument,LabWindows,PhaseNoise,FrequencyDifferenceElimination目录目录第一章绪论............
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