Generalized B-spline signal processing

Generalized B-spline signal processing

ID:39508289

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时间:2019-07-04

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1、SIGNALPROCESSINGEISEVIERSignalProcessing55(1996)1-14GeneralizedB-splinesignalprocessingRutuparnaPandaa,G.S.Rathb,B.N.Chatterji,*aDepartmentofElectronicsandTelecommunicationEngineering,UniversityCollegeofEngineering,Burla768018,IndiabDepartmentofAppliedEle

2、ctronicsandInstrumentationEngineering,RegionalEngineeringCollege,Rourkela769008,IndiaDepartmentofElectronicsandElectricalCommunicationEngineering,IndianInstituteofTechnology,Kharagpur721302.IndiaReceived13January1995;revised7September1995and13March1996Abs

3、tractThispaperdescribesanefficientgeneralizedB-splinefilteringtechniquefortheprocessingandrepresentationofsignalsintermsofcontinuousgeneralizedB-splinebasisfunctions.DifferenttypesofgeneralizedB-splineofanydegreeareintroducedinamoregeneralizedframework.An

4、efficientgeneralizedB-splinefilteringtechniqueforband-limitedsignalispresented.Itisshownthattheentirefilteringprocessisequivalenttolowpassfilteringoftheband-limitedsignal.Inthefirststageofthefilteringprocess,weconsidertheproblemofextractingsplinecoefficie

5、ntswithdown-samplingwithafactorofm.Inthesecondstage,weconsiderthereconstructionoftheoriginalsignalthroughup-samplingwithanoptionalzoomingfactorm.NormalizedgainversusfrequencyresponsecharacteristicsforsomeofthegeneralizedB-splinefiltersareplottedforinterpr

6、etationofthequalityofgeneralizedB-splinefiltering.AcomputersimulationresultispresentedtoshowtheantialiasingpropertyofgeneralizedB-splinefilteringforband-limitedsignals.ZusammenfassungDieseArbeitbeschreibteineeffizienteverallgemeinerteB-Spline-Filtermethod

7、ezurVerarbeitungundDarstellungvonSignalenmittelsstetigerverallgemeinerterB-Spline-Basisfunktionen.VerschiedeneTypenverallgemeinerterB-SplinesbeliebigenGradeswerdenineinemweiterverallgemeinertenRahmeneingefiihrt.EineeffizienteverallgemeinerteB-Spline-Filte

8、rmethodefibbandbegrenzteSignalewirdvorgestellt.Eswirdgezeigt,daljdiegesamteFilterungeinerTiefpagfilterungdesbandbegrenztenSignalsaquivalentist.IndererstenStufederFilterprozedurbetrachtenwirdasProblem,Spline-Koeffizi

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