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Based on Wavelet Transform rotating machinery vibration signals of the data compression method


ionofwavelettransformtocompressionofmechanicalribra111) natidataCybenetiesandSystems, 1997; 28 (3) :225 - 2443HeZY · WuLN-Periodicpredictionandswitchedadaptationinvibrationsignalcompression1991PacificRimConferenceonCommunications. ComputerandSignalProcessing. PiscatawayNJUSA, 1991,[link widoczny dla zalogowanych], IEEEVictoriaISection. 1991:1901964 MallatStWenLHSingularitydetectionandprocessingwithwavelets. 1EEETrans iv rios0nInformationTheory. 1992; 38 (2) :617-641MethodofDataCompressingforRotatingMachineryVibrationSignalBasedonWaveletTransformxuMinqiangZhangJiazhongZhangGuobinHuangWenhu (DepartmentofAstronautics & Mechanics,[link widoczny dla zalogowanych], HarbinInstituteofTechnologyHarbin.150001) AbstractInthepaper-thegeneralpropertiesofrotatingmachineryvibrationsignalsaresummarizedandtheutilityofwavelettranformtodetectthesingularitiesofsignalisreviewed,[link widoczny dla zalogowanych], Onthiasis. aformofrepresentationofavibrationsignalisproposed · whichiscomprisedofthedecomposedwaveletcoefficientsandthespecializedfrequencycomponentsinthespectrum. Thewaveletcoefficientsindicatethesingularitiesofthesignal, whilethefrequencycomponentsreflectitsnorma] characteristics. Thetotaldatasizeofsucharepresentationisfarlessthantheoriginaltimedomaindatasizeandanapproachforsignaldatacompressionisthusproposed. Thepresentedmethodhaeenappliedtosomeactualvibrationsignalsaswellassimulationsignalswithgoodresultsobtainedinrespectofdatacompressionratioandsignalreconstruction. Keywordsvibrationsignal; rotatingmachinery {datacompression; wavelettransform the first of the strong men Restraints Min , Associate Professor ,[link widoczny dla zalogowanych], September 1960 students. Phone : (0,[link widoczny dla zalogowanych],151) 6414479; E-mail; xumq @ hopehit, educn

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