SpecificEnglishforElectronicInformationEngineeringTeacher：張培珍GuangdongOceanUniversitySpecificEnglishforElectroniLesson9:DigitalsignalprocessingIndexPre-reading9.1Signalprocessing9.2Digitalsignalprocessing9.3ThedevelopmentofDigitalSignalprocessing9.4DigitalsignalprocessorLesson9:DigitalsignalprocePre-reading123whatissignalprocessing?whatisdigitalsignalprocessors?Whatisdigitalsignalprocessing?Readthelesson,payingattentiontothefollowingquestions.Pre-reading123whatissignalRemindtheWordsandexpressionsGloriousEvidentAcousticsSeismographyDomainExtractDesirableInterpolationAlgorithmNaturalTendencySophisticatedLogarithmFurtherRestrictedsuitableRemindtheWordsandexpressioRemindtheWordsandexpressionsCurriculumTechniqueCodeProgrammableIncorporateFetchMultiplyExecutionBio-engineeringFouriertransformFastFouriertransform(FFT)RemindtheWordsandexpressio9.1Signalprocessing(1)Signalprocessingisevidentindifferentdomains,suchasbio-engineeringmedicine,acoustics,radar,seismography,pronunciationcorrespondence,digitalcommunication,nuclearscienceaswellasotherdomains;9.1Signalprocessing(1)Signal9.1Signalprocessing(2)ExtractcharacteristicparameterinECG(electrocardiogram)analysisorinspeechtransmissionandspeechrecognition;(3)Removeinterferenceandnoise;(4)Turnssignalforeasiertointerpret;9.1Signalprocessing(2)ExtraWordsandexpressionsSignalprocessingGloriousBio-engineeringmedicineAcousticsRadarSeismographyPronunciation-correspondence信號(hào)處理光榮的，顯赫的生物工程醫(yī)學(xué)聲學(xué)雷達(dá)地震學(xué)語音通信WordsandexpressionsSignalprWordsandexpressionsDigitalcommunicationNuclearscienceSituationECGanalysisSpeechtransmissionSpeechrecognitionExtractCharacteristicparameter數(shù)字通信核科學(xué)條件，環(huán)境心電圖分析語音傳輸語音識(shí)別提取特征參數(shù)WordsandexpressionsDigitalcWordsandexpressionsInterferencenoiseSpecialistInterpret干擾噪聲專家解釋，說明WordsandexpressionsInterfere9.2DigitalsignalprocessingIsconcernedwithrepresentationofthesignalsequence,expressingandprocessingthesignalsequence;Estimatesthesignalcharacteristicparameter;Transformthesignalintoadesirableform.9.2DigitalsignalprocessingIDigitalsignalprocessingalgorithmsNumericalanalysisformulaInterpolation,integration,differentiation;DigitalsignalprocessingalgoSignalprocessingalgorithmsignalprocessingalgorithmasfollowingfigure:SignalprocessingalgorithmsigWordsandexpressionsRepresentationSignalsequenceEstimateCharacteristicparameterClassicalNumericalanalysisFormulaInterpolationIntegration代表，表示信號(hào)序列估計(jì)特征參數(shù)經(jīng)典的數(shù)值分析公式插值積分WordsandexpressionsRepresentWordsandexpressionsDifferentiationAlgorithmPromoteIngeniousSimultaneousIntegratedcircuitcraftEconomicalImplementation差分算法促進(jìn)，推動(dòng)巧妙的，設(shè)計(jì)獨(dú)特的同時(shí)的集成電路工藝經(jīng)濟(jì)的，節(jié)約的完成，實(shí)現(xiàn)WordsandexpressionsDifferentFouriertransformandFFTAtendencytoexperimentwithsophisticatedsignalprocessingalgorithms.RequirestheexplicitevaluationofinverseFouriertransformoflogarithmsoftheFouriertransformoftheinput.LogarithmofFTFTFouriertransformandFFTAtenWordsandexpressionsNaturalTendencyIncreasinglySophisticatedAlgorithmExplicitEvaluationInverseFouriertransformlogarithm自然的趨勢(shì)增加的詭辯的，復(fù)雜的精致的算法明確的，清楚的評(píng)價(jià)傅里葉反變換對(duì)數(shù)WordsandexpressionsNatural自然FouriertransformandFFTIn1965,anefficientalgorithmforFouriertransformisdisclosed.FFTreducedthecomputationtimebyordersofmagnitude.FouriertransformandFFTIn19FouriertransformandFFTImageanditsFourierspectrumFouriertransformandFFTImageWordsandexpressionsEvolutionAcceleratedDisclosureEfficientalgorithmOrdersofmagnitudePermittedSophisticatedInteractionwith進(jìn)化加速的公開的有效的算法幾個(gè)數(shù)量級(jí)允許的復(fù)雜的交互WordsandexpressionsEvolutionImplicationofFFTTiedtodiscrete-timeconcept.Stimulatingareformulationofsignalprocessingconceptsandalgorithm.ImplicationofFFTTiedtodiscWordsandexpressionsImplicationInherentlyDiscrete-timeConceptStimulateReformulationMathematicsDiscrete-timedomain含義，含意固有的，天性的離散時(shí)間概念鼓舞，刺激再形成數(shù)學(xué)的離散時(shí)間域WordsandexpressionsImplicatiDevelopmentDatedfrom1960s.Not

widelyusedatthattime,wasavailableinuniversitiesandscientificresearchinstitutions.DevelopmentDatedfrom1960s.WordsandexpressionsDatedfromUtilizeMainframeAvailableUniversityScientificresearchinstitution追溯至利用主機(jī)適用于大學(xué)研究所WordsandexpressionsDatedfroApplicationInthe1980sandthe90s,providebiggerdevelopmentspacetoDSP.Quicklyenteredthecommercialmarketplace.Arrivedatpeople’sordinarylife.ApplicationInthe1980sandthWordsandexpressionsExpensiveRestrictedMilitaryGovernmentCommercialmarketplaceMobiletelephoneCompactdiscplayerElectronicvoicemail昂貴的受限的軍事政府商業(yè)市場移動(dòng)電話影碟機(jī)電子語音信箱WordsandexpressionsExpensiveCurriculum1980s,wasspecializedgraduatecurriculumintheelectronicengineering.1990s,becameapartofundergraduatecurriculum.Today,becomesanecessaryskillbymulti-domainscientistsandengineers.Curriculum1980s,wasspecialWordsandexpressionsSpecializedGraduatestudentUndergraduateCurriculumMulti-domainRevolutionized專業(yè)的研究生本科生課程多領(lǐng)域的引起革命的WordsandexpressionsSpecializDigitalsignalprocessorDSPIntroducedinthelate1970sandearly1980s;DSPisprogrammabledevice;Hasitsownnativeinstructioncode;cancarryoutmillionsoffloatingpointoperationspersecond;DigitalsignalprocessorDSPIDigitalsignalprocessorDSPDigitalsignalprocessorDSPWordsandexpressionsIntroductionManufacturersSpecialize–MicroprocessorArchitectureProgrammableNativeinstructionFloatingpoint-operation引言，引進(jìn)制造商專用微處理器結(jié)構(gòu)可編程的內(nèi)部指令浮點(diǎn)運(yùn)算WordsandexpressionsIntroductCharacteristicofDSPreal-timeoperation;highthrough-putrate;Intensivearithmeticoperation;Notablymultiplicationandadditionormultiply-accumulate;CharacteristicofDSPreal-timWordsandexpressionsReal-timeoperationEmphasisThrough-putrateIntensivearithmetic-OperationMultiplicationAdditionMultiply-accumulatetailored實(shí)時(shí)運(yùn)算強(qiáng)調(diào)吞吐率高強(qiáng)度的數(shù)學(xué)運(yùn)算乘法加法乘累加調(diào)整適應(yīng)，特制的WordsandexpressionsReal-timeFeatureofDSPchipAllowsfastmultiplication；Separatebusedormemoriesformprogramanddata;WellknownHarvardarchitecture;cycle-savinginstructionsforbranchingorlooping;Veryfastspeed(acycle100ns);Useofpipeliningtoreduceinstructiontimeandincreasesspeed;FeatureofDSPchipAllowsfaWordsandexpressionsBuild-inMultiplicationChipsIncorporateSingle-cycleInstructionInparallel內(nèi)置乘法芯片包含，組合，單周期指令并行WordsandexpressionsBuild-in內(nèi)WordsandexpressionsBusMemoryHarvardarchitectureOverlapFetchandexecution總線存儲(chǔ)器哈佛結(jié)構(gòu)重疊取址和執(zhí)行WordsandexpressionsBus總線WordsandexpressionsCycle-savinginstructionBranchingLoopingAccumulatingDelaypipelining周期保存指令分支循環(huán)累加延遲流水線WordsandexpressionsCycle-savConclusiondigitalsignalprocessingisoneofthemostpowerfultechnologies;Rewritethehistoryofscienceandengineering;Canimprovesignalquality;Cancollect,process,transmit,displayandstoreinformationConclusiondigitalsignalprocWordsandexpressionsPowerfulRevolutionaryFilteringsignalExtractinformationCollectProcessTransmitDisplay有力的創(chuàng)新的，革命性的濾波信號(hào)提取信息收集處理傳輸顯示W(wǎng)ordsandexpressionsPowerful有ThankYou!廣東海洋大學(xué)www.51

搜集整理ThankYou!廣東海洋大學(xué)www.51pptmobaSpecificEnglishforElectronicInformationEngineeringTeacher：張培珍GuangdongOceanUniversitySpecificEnglishforElectroniLesson9:DigitalsignalprocessingIndexPre-reading9.1Signalprocessing9.2Digitalsignalprocessing9.3ThedevelopmentofDigitalSignalprocessing9.4DigitalsignalprocessorLesson9:DigitalsignalprocePre-reading123whatissignalprocessing?whatisdigitalsignalprocessors?Whatisdigitalsignalprocessing?Readthelesson,payingattentiontothefollowingquestions.Pre-reading123whatissignalRemindtheWordsandexpressionsGloriousEvidentAcousticsSeismographyDomainExtractDesirableInterpolationAlgorithmNaturalTendencySophisticatedLogarithmFurtherRestrictedsuitableRemindtheWordsandexpressioRemindtheWordsandexpressionsCurriculumTechniqueCodeProgrammableIncorporateFetchMultiplyExecutionBio-engineeringFouriertransformFastFouriertransform(FFT)RemindtheWordsandexpressio9.1Signalprocessing(1)Signalprocessingisevidentindifferentdomains,suchasbio-engineeringmedicine,acoustics,radar,seismography,pronunciationcorrespondence,digitalcommunication,nuclearscienceaswellasotherdomains;9.1Signalprocessing(1)Signal9.1Signalprocessing(2)ExtractcharacteristicparameterinECG(electrocardiogram)analysisorinspeechtransmissionandspeechrecognition;(3)Removeinterferenceandnoise;(4)Turnssignalforeasiertointerpret;9.1Signalprocessing(2)ExtraWordsandexpressionsSignalprocessingGloriousBio-engineeringmedicineAcousticsRadarSeismographyPronunciation-correspondence信號(hào)處理光榮的，顯赫的生物工程醫(yī)學(xué)聲學(xué)雷達(dá)地震學(xué)語音通信WordsandexpressionsSignalprWordsandexpressionsDigitalcommunicationNuclearscienceSituationECGanalysisSpeechtransmissionSpeechrecognitionExtractCharacteristicparameter數(shù)字通信核科學(xué)條件，環(huán)境心電圖分析語音傳輸語音識(shí)別提取特征參數(shù)WordsandexpressionsDigitalcWordsandexpressionsInterferencenoiseSpecialistInterpret干擾噪聲專家解釋，說明WordsandexpressionsInterfere9.2DigitalsignalprocessingIsconcernedwithrepresentationofthesignalsequence,expressingandprocessingthesignalsequence;Estimatesthesignalcharacteristicparameter;Transformthesignalintoadesirableform.9.2DigitalsignalprocessingIDigitalsignalprocessingalgorithmsNumericalanalysisformulaInterpolation,integration,differentiation;DigitalsignalprocessingalgoSignalprocessingalgorithmsignalprocessingalgorithmasfollowingfigure:SignalprocessingalgorithmsigWordsandexpressionsRepresentationSignalsequenceEstimateCharacteristicparameterClassicalNumericalanalysisFormulaInterpolationIntegration代表，表示信號(hào)序列估計(jì)特征參數(shù)經(jīng)典的數(shù)值分析公式插值積分WordsandexpressionsRepresentWordsandexpressionsDifferentiationAlgorithmPromoteIngeniousSimultaneousIntegratedcircuitcraftEconomicalImplementation差分算法促進(jìn)，推動(dòng)巧妙的，設(shè)計(jì)獨(dú)特的同時(shí)的集成電路工藝經(jīng)濟(jì)的，節(jié)約的完成，實(shí)現(xiàn)WordsandexpressionsDifferentFouriertransformandFFTAtendencytoexperimentwithsophisticatedsignalprocessingalgorithms.RequirestheexplicitevaluationofinverseFouriertransformoflogarithmsoftheFouriertransformoftheinput.LogarithmofFTFTFouriertransformandFFTAtenWordsandexpressionsNaturalTendencyIncreasinglySophisticatedAlgorithmExplicitEvaluationInverseFouriertransformlogarithm自然的趨勢(shì)增加的詭辯的，復(fù)雜的精致的算法明確的，清楚的評(píng)價(jià)傅里葉反變換對(duì)數(shù)WordsandexpressionsNatural自然FouriertransformandFFTIn1965,anefficientalgorithmforFouriertransformisdisclosed.FFTreducedthecomputationtimebyordersofmagnitude.FouriertransformandFFTIn19FouriertransformandFFTImageanditsFourierspectrumFouriertransformandFFTImageWordsandexpressionsEvolutionAcceleratedDisclosureEfficientalgorithmOrdersofmagnitudePermittedSophisticatedInteractionwith進(jìn)化加速的公開的有效的算法幾個(gè)數(shù)量級(jí)允許的復(fù)雜的交互WordsandexpressionsEvolutionImplicationofFFTTiedtodiscrete-timeconcept.Stimulatingareformulationofsignalprocessingconceptsandalgorithm.ImplicationofFFTTiedtodiscWordsandexpressionsImplicationInherentlyDiscrete-timeConceptStimulateReformulationMathematicsDiscrete-timedomain含義，含意固有的，天性的離散時(shí)間概念鼓舞，刺激再形成數(shù)學(xué)的離散時(shí)間域WordsandexpressionsImplicatiDevelopmentDatedfrom1960s.Not

widelyusedatthattime,wasavailableinuniversitiesandscientificresearchinstitutions.DevelopmentDatedfrom1960s.WordsandexpressionsDatedfromUtilizeMainframeAvailableUniversityScientificresearchinstitution追溯至利用主機(jī)適用于大學(xué)研究所WordsandexpressionsDatedfroApplicationInthe1980sandthe90s,providebiggerdevelopmentspacetoDSP.Quicklyenteredthecommercialmarketplace.Arrivedatpeople’sordinarylife.ApplicationInthe1980sandthWordsandexpressionsExpensiveRestrictedMilitaryGovernmentCommercialmarketplaceMobiletelephoneCompactdiscplayerElectronicvoicemail昂貴的受限的軍事政府商業(yè)市場移動(dòng)電話影碟機(jī)電子語音信箱WordsandexpressionsExpensiveCurriculum1980s,wasspecializedgraduatecurriculumintheelectronicengineering.1990s,becameapartofundergraduatecurriculum.Today,becomesanecessaryskillbymulti-domainscientistsandengineers.Curriculum1980s,wasspecialWordsandexpressionsSpecializedGraduatestudentUndergraduateCurriculumMulti-domainRevolutionized專業(yè)的研究生本科生課程多領(lǐng)域的引起革命的WordsandexpressionsSpecializDigitalsignalprocessorDSPIntroducedinthelate1970sandearly1980s;DSPisprogrammabledevice;Hasitsownnativeinstructioncode;cancarryoutmillionsoffloatingpointoperationspersecond;DigitalsignalprocessorDSPIDigitalsignalprocessorDSPDigitalsignalprocessorDSPWordsandexpressionsIntroductionManufacturersSpecialize–MicroprocessorArchitectureProgrammableNativeinstructionFloatingpoint-operation引言，引進(jìn)制造商專用微處理器結(jié)構(gòu)可編程的內(nèi)部指令浮點(diǎn)運(yùn)算WordsandexpressionsIntroductCharacteristicofDSPreal-timeoperation;highthrough-putrate;Intensivearithmeticoperation;Notablymultiplicationandadditionormultiply-accum