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1、附录A英文文献DSPsBacktotheFuture[13]W.PatrickHaysPublishedonline：23June2004SpringerScience+BusinessMediaB.V.2004AbstractOurcomplexworldischaracterizedbyrepresentation,transmission,andstorageofinformation-andinformationismostlyprocessedindigitalform.Withtheadv
2、entofDSPs(digitalsignalprocessors),engineersareabletoimplementcomplexalgorithmswithrelativeease.TodaywefindDSPsallaroundus-incars,digitalcameras,MP3andDVDplayers,modems,andsoforth.TheirwidespreaduseanddeploymentincomplexsystemshastriggeredarevolutioninD
3、SParchitectures,whichinturnhasenabledengineerstoimplementalgorithmsofever-increasingcomplexity.ADSPprogrammertodaymustbeproficientinnotonlydigitalsignalprocessingbutalsocomputerarchitectureandsoftwareengineering.Keywords DSP；MotorcontrolsystemTheIntel29
4、20includedon-chip(D/A)digital/analogandA/D(analog/digital)convertersbutlackedahardwaremultiplierandsoonfadedfromthemarket.AnNECprojectresultedintheNECµPD7720—oneofthemostsuccessfulDSPsofalltime.TheBellLabsDSP-1andNECµPD7720wereannouncedatISSCC80.DSP-1,a
5、chieved5-MHzclockspeed，executing1.25-MBmultiply-accumulatespersecondatfourclockcycleseach—enoughtoallowTouch-Tonereceiverfilterstoexecuteinrealtime.TheonceformidableperformancedemandsoftheTouch-Tonereceiverarenowludicrouslyeasy,butnewapplicationsinturna
6、rosethroughoutthelast20yearstoputnewdemandsonDSPtechnology(seefigure1).AccordingtoWillStrauss,presidentandprincipalanalystatForwardConcepts,“DSPshipmentswereupahealthy24percentin2003,andweareforecastingabithighergrowthfor2004,at25percent.Longerterm,wefo
7、recasta22.6percentcompoundgrowthratethrough2007.”Sothegamehasbeen:BoostDSPperformance,runthealgorithmatanacceptablecost,andopenupanewcommercialmarket.Itisperhapstooglibtoprojectthistrendindefinitelyintothefuture,Infact,savvyanalystshaveperiodicallypredi
8、ctedthedemiseoftheDSP.WillperformancerequirementsoutstriptheabilityofprogrammableDSParchitecturestokeepup,thusdemandinganewapproach?orifDSPsaretomaintaintheirhistoricalgrowthcurve，whatkindsoftoolsandarchitecturesareneeded?Ultimat
