数字滤波器设计译文原文_毕业设计（论文）

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1、重庆大学本科学生毕业设计（论文）附件附件D：FPGAIMPLEMENTATIONOFDIGITALFILTERSChi-JuiChou,SatishMohanakrishnan,JosephB.EvansTelecommunications&InformationSciencesLaboratoryDepartmentofElectrical&ComputerEngineeringUniversityofKansasLawrence,KS66045-2228ABSTRACTDigitalfilteringalgorithmsaremostcommonly

2、implementedusinggeneralpurposedigitalsignalprocessingchipsforaudioapplications,orspecialpurposedigitalfilteringchipsandapplication-specificintegratedcircuits(ASICs)forhigherrates.Thispaperdescribesanapproachtotheimplementationofdigitalfilteralgorithmsbasedonfieldprogrammablegatea

3、rrays(FPGAs).TheadvantagesoftheFPGAapproachtodigitalfilterimplementationincludehighersamplingratesthanareavailablefromtraditionalDSPchips,lowercoststhananASICformoderatevolumeapplications,andmoreflexibilitythanthealternateapproaches.SincemanycurrentFPGAarchitecturesarein-systempr

4、ogrammable,theconfigurationofthedevicemaybechangedtoimplementdifferentfunctionalityifrequired.OurexamplesillustratethattheFPGAapproachisbothflexibleandprovidesperformancecomparableorsuperiortotraditionalapproaches.1.INTRODUCTIONThemostcommonapproachestotheimplementationofdigitalf

5、ilteringalgorithmsaregeneralpurposedigitalsignalprocessingchipsforaudioapplications,orspecialpurposedigitalfilteringchipsandapplication-specificintegratedcircuits(ASICs)forhigherrates[9,14].Thispaperdescribesanapproachtotheimplementationofdigitalfilteralgorithmsonfieldprogrammabl

6、egatearrays(FPGAs).RecentadvancesinFPGAtechnologyhaveenabledthesedevicestobeappliedtoavarietyofapplicationstraditionallyreservedforASICs.FPGAsarewellsuitedtodatapathdesigns,suchasthoseencounteredindigitalfilteringapplications.Thedensityofthenewprogrammabledevicesissuchthatanontri

7、vialnumberofarithmeticoperationssuchasthoseencounteredindigitalfilteringmaybeimplementedonasingledevice.TheadvantagesD27重庆大学本科学生毕业设计（论文）附件oftheFPGAapproachtodigitalfilterimplementationincludehighersamplingratesthanareavailablefromtraditionalDSPchips,lowercoststhananASICformoderat

8、evolumeapplications,andmoreflexibilityth