基于labwindows2fcvi的虚拟实验平台设计与研发

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1、DesignandDevelopmentonVirtualExperimentPlatformbasedonLabwindows／CVIAbstractTheCOreofvirtualinstrumentiSthatthehardwarewhichregardscomputerastheinstrumentissupported，fullyutilizeintellectualfunctions，suchascomputeruniqueoperation，memory,playback，transferring，showingandf

2、ilemanagement，etc．makeitconbinewiththePCtogetherandcombinetraditionalspecializedfunctionsoRwareofinstrument．Virtualinstrumentlaboratorybuildedbyvirtualinstrumenthasmanyadvantages，suchaslessinvestment，shortdevelopingperiod．ItCanpromotedevelopmentofpresentengineeringtestl

3、aboratory．ThisthesistakesLabWindows／CVIasthedevelopmentplatformwhichisbasedonthestorehouseofANSIC，throughusingDLLtechnology,SoundcarddriverisdevelopedinVisualCHenvironment，usingthepowerfullanguageC++，mainlyusestheelementaryfunctionofaudioinMMSYSTEM．DLLofWindowssystemwit

4、lldoublecachemechanism，realizethecollectionofrealtimeforthesignalofaudiofrequencythroughsoundcard；hasdigitalprocessingsystembasedonsoundcardaswell’aschaoticwhitenoiseemulationinstrument．Digitalprocessingsystembasedonsoundcardrealizedthereal-timeanalysisfortonictrainsign

5、aling，includingthetimedommnanalysisandthefrequencydominanalysis，andrealizedfunctionsofwaveletanalysisandotherstothepartialmisalignmentsignal．Thetimedomainanalysisincludingthesignalautocorrelationanalysisandthemutualcorrelationanalysis；Frequencydomainanalysisincludingamp

6、litudefrequencyspectrumanalysis，phase．frequencyanalysis，FHTanalysis．AndthefiltertechniqueusingtheIIRfilteraSwellastheWeinafilter；WaveletanalysisincludingfunctionsandSOwaveletdenoising，waveletextraction，smallwavepacketdecompositionandSOon．Moreoverthechaoswhitenoisesimula

7、tionmeter,whichisproducedbytheapplicationchaostheoryandhavenottheperiodicity,hasthecharacteristicofparametersensitive．FinallyrealizedthenetworkserviceanddatanetworksharingrealizesbyusingtheDataSockettechnology．ThisthesistakesLabWindows／CVIasitsdevelopmentenvironment，Itc

8、anformindependentsetupsoRwarepackageandrunabsolutelydeviatingthedevelopment．IlI．■，J●●，罩东北大学硕士学位论文Abstractenvir