外文翻译---基于fpga系统的数字信号处理适用性评估

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1、一、英文原文AnAssessmentoftheSuitabilityofFPGA-BasedSystemsforuseinDigitalSignalProcessing★Tobepublishedin5thInternationalWorkshoponField-ProgrammableLogicandApplications,Oxford,England,Aug.1995.★★ThisworkwassupportedbyARPA/CSTOundercontractnumberDABT63-94-C-0085underasu

2、bcontracttoNationalSemiconductor.RussellJ.PetersenandBradL.HutchingsBrighamYoungUniversity,Dept.ofElectricalandComputerEngineering,459CB,ProvoUT84602,USAAbstract.FPGAshavebeenproposedashigh-performancealternativestoDSPprocessors.ThispaperquantitativelycomparesFPGAp

3、erformanceagainstDSPprocessorsandASICsusingactualapplicationsandexistingCADtoolsanddevices.PerformancemeasureswerebasedonactualmultiplierperformancewithFPGAs,DSPprocessorsandASICs.ThisstudydemonstratesthatFPGAscanprovideanorderofmagnitudebetterperformancethanDSPpro

4、cessorsandcaninmanycasesapproachorexceedASIClevelsofperformance.1IntroductionTomeettheintensivecomputationandI/OdemandsimposedbyDSPsystemsmanycustomdigitalhardwaresystemsutilizingASICshavebeendesignedandbuilt.Customhardwaresolutionshavebeennecessaryduetothelowperfo

5、rmanceofotherapproachessuchasmicroprocessor-basedsystems,buthavethedisadvantageofinflexibilityandahighcostofdevelopment.TheDSPprocessorattemptstoovercometheinflexibilityanddevelopmentcostsofcustomhardware.TheDSPprocessorprovidesflexibilitythroughsoftwareinstruction

6、decodingandexecutionwhileprovidinghighperformancearithmeticcomponentssuchasfastarraymultipliersandmultiplememorybankstoincreasedatathroughput.TheFPGAhasalsorecentlygeneratedinterestforuseinimplementingdigitalsignalprocessingsystemsduetoitsabilitytoimplementcustomha

7、rdwaresolutionswhilestillmaintainingflexibilitythroughdevicereprogramming[2].UsingtheFPGAitishopedthatasignificant21performanceimprovementcanbeobtainedovertheDSPprocessorwithoutsacrificingsystemflexibility.ThispaperisanattempttoquantifytheabilityoftheFPGAtoprovidea

8、nacceptableperformanceimprovementovertheDSPprocessorintheareaofdigitalsignalprocessing.2MultiplicationanddigitalsignalprocessingAcoreoperationind