基于信号的去噪方法分析小波变换外文原文.docx:..ANALYSISOFSIGNALDENOISINGMETHODSBASEDONWAVELETTRANSFORM^HEMIP・M・,,MESCollege,Marampally,Ernakulam,puterApplications,Govt・£ngineeringCollege,Thrissur,KeralaEmail:shemipm@,******@Abstract:・Inthispaper,signaldenoisingbasedonDouble-DensityDiscreteWaveletTransform(DDDWT)andDual-TreeDiscreteWaveletTiansform(DTDWT),positionaredetermined・TheresultsintermsofRootMeanSquareError(RMSE)andSignaltoNoiseRatio(SNR)paredwiththecorrespondingvaluesofDiscreteWaveletTransform(DWT)baseddenoisingmethod・Thepopulartestsignal;piece-regularcontaminatedwithAdditiveWhiteGaussianNoise(AWGN),:SignalDenoising,DiscreteWaveletTransform,Double-DensityDiscreteWaveletTransfonn,Dual-TreeDiscreteWaveletTransform,--resolutionanalysisbyrepresentingafunctionsimultaneouslyintimeandfrequencydomainsusingasetofanalyzingfunctionscalledwavelets[1].Thisgoodtime-frequencylocalityofwavelettransformmakesitusefulforprocessingofnon-stationaryandtran
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