Introduction to Digital Signal Processing (DSP).pdf

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1、IntroductiontoDigitalSignalProcessing(DSP)ElenaPunskayawww-sigproc.eng.cam.ac.uk/~op205SomematerialadaptedfromcoursesbyProf.SimonGodsill,Dr.ArnaudDoucet,Dr.MalcolmMacleodandProf.PeterRayner1CourseOverview•Topics:–FourierTransformsandDigitalFilters6letures[me]–Ra

2、ndomsignals,OptimalFilteringandSignalModelling6lectures[SimonGodsill]–Patternrecognition4lectures[ZoubinGhahramani]•Handouts:–New:typos,please,e-mailop205@cam.ac.uk–www-sigproc.eng.cam.ac.uk/~op205–Feedbackwelcome•Naturalextensionof3F12BooksBooks:–J.G.Proakisand

3、D.G.Manolakis,DigitalSignalProcessing3rdedition,Prentice-Hall.–R.GLyons,UnderstandingDigitalSignalprocessing,2ndedition,Prentice-Hall.(Amazon’stop-sellingforfivestraightyears)Materialcovered–maths(whyisitdifficult?)–exams–examplespapers–help3WhatisDigitalSignalP

4、rocessing?Digital:operatingbytheuseofdiscretesignalstorepresentdataintheformofnumbersSignal:aparameter(electricalquantityoreffect)thatcanbevariedinsuchawayastoconveyinformationProcessing:aseriesoperationsperformedaccordingtoprogrammedinstructionschangingoranalys

5、inginformationwhichismeasuredasdiscretesequencesofnumbers4TheJourney“Learningdigitalsignalprocessingisnotsomethingyouaccomplish;it’sajourneyyoutake”.R.GLyons,UnderstandingDigitalSignalprocessing5ApplicationsofDSP-RadarRadarandSonar:Examples1)targetdetection–posi

6、tionandvelocityestimation2)tracking6ApplicationsofDSP-BiomedicalBiomedical:analysisofbiomedicalsignals,diagnosis,patientmonitoring,preventivehealthcare,artificialorgansExamples:1)electrocardiogram(ECG)signal–providesdoctorwithinformationabouttheconditionofthepat

7、ient’sheart2)electroencephalogram(EEG)signal–providesInformationabouttheactivityofthebrain7ApplicationsofDSP-SpeechSpeechapplications:Examples1)noisereduction–reducingbackgroundnoiseinthesequenceproducedbyasensingdevice(microphone)2)speechrecognition–differentia

8、tingbetweenvariousspeechsounds3)synthesisofartificialspeech–texttospeechsystemsforblind8ApplicationsofDSP-CommunicationsCommunications:Examples1)telephony–transmissio