数字滤波器设计译文原文_学位论文.doc

《数字滤波器设计译文原文_学位论文.doc》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。

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,KS66045-2228ABSTRACTDigitalfilteringalgorithmsaremostcommonlyimplementedusingg

2、eneralpurposedigitalsignalprocessingchipsforaudioapplications,orspecialpurposedigitalfilteringchipsandapplication-specificintegratedcircuits(ASICs)forhigherrates.Thispaperdescribesanapproachtotheimplementationofdigitalfilteralgorithmsbasedonfieldprogrammablegatearrays(FPGAs).TheadvantagesoftheFPG

3、AapproachtodigitalfilterimplementationincludehighersamplingratesthanareavailablefromtraditionalDSPchips,lowercoststhananASICformoderatevolumeapplications,andmoreflexibilitythanthealternateapproaches.SincemanycurrentFPGAarchitecturesarein-systemprogrammable,theconfigurationofthedevicemaybechangedt

4、oimplementdifferentfunctionalityifrequired.OurexamplesillustratethattheFPGAapproachisbothflexibleandprovidesperformancecomparableorsuperiortotraditionalapproaches.1.INTRODUCTIONThemostcommonapproachestotheimplementationofdigitalfilteringalgorithmsaregeneralpurposedigitalsignalprocessingchipsforau

5、dioapplications,orspecialpurposedigitalfilteringchipsandapplication-specificintegratedcircuits(ASICs)forhigherrates[9,14].Thispaperdescribesanapproachtotheimplementationofdigitalfilteralgorithmsonfieldprogrammablegatearrays(FPGAs).RecentadvancesinFPGAtechnologyhaveenabledthesedevicestobeappliedto

6、avarietyofapplicationstraditionallyreservedforASICs.FPGAsarewellsuitedtodatapathdesigns,suchasthoseencounteredindigitalfilteringapplications.Thedensityofthenewprogrammabledevicesissuchthatanontrivialnumberofarithmeticoperationssuchasthoseencounteredindigitalfilteringmaybeimplementedonasingledevic

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