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1、数字信号处理基础安冬第一章数字信号处理概述FIGURE1-1ApplicationsofDSP.JoyceVandeVegteFundamentalsofDigitalSignalProcessingCopyright©2002byPearsonEducation,Inc. UpperSaddleRiver,NewJersey07458 Allrightsreserved.Touch-Tone™telephonesEdgedetectioninimagesDigitalsignalandimagefil
2、teringSeismicanalysisTextrecognitionSpeechrecognitionMagneticresonanceimage(MRI)scansMusicsynthesisBarcodereadersSonarprocessingSatelliteimageanalysisDigitalmappingCellulartelephonesDigitalcamerasDetectionofnarcoticsandexplosivesSpeechsynthesisEchocancel
3、lationCochlearimplantsAntilockbrakesSignalandimagecompressionNoisereductionCompandingHighdefinitiontelevision(HDTV)DigitalaudioEncryptionMotorcontrolRemotemedicalmonitoringSmartappliancesHomesecurityHighspeedmodemsFIGURE1-2Examplesofsignals.JoyceVandeVeg
4、teFundamentalsofDigitalSignalProcessingCopyright©2002byPearsonEducation,Inc. UpperSaddleRiver,NewJersey07458 Allrightsreserved.FIGURE1-2Examplesofsignals.JoyceVandeVegteFundamentalsofDigitalSignalProcessingCopyright©2002byPearsonEducation,Inc. UpperSaddl
5、eRiver,NewJersey07458 Allrightsreserved.FIGURE1-2Examplesofsignals.JoyceVandeVegteFundamentalsofDigitalSignalProcessingCopyright©2002byPearsonEducation,Inc. UpperSaddleRiver,NewJersey07458 Allrightsreserved.FIGURE1-2Examplesofsignals.JoyceVandeVegteFunda
6、mentalsofDigitalSignalProcessingCopyright©2002byPearsonEducation,Inc. UpperSaddleRiver,NewJersey07458 Allrightsreserved.FIGURE1-2Examplesofsignals.JoyceVandeVegteFundamentalsofDigitalSignalProcessingCopyright©2002byPearsonEducation,Inc. UpperSaddleRiver,
7、NewJersey07458 Allrightsreserved.CourtesyMichaelNoonan,Ph.D.CanisusCollegeFIGURE1-2Examplesofsignals.JoyceVandeVegteFundamentalsofDigitalSignalProcessingCopyright©2002byPearsonEducation,Inc. UpperSaddleRiver,NewJersey07458 Allrightsreserved.FIGURE1-3Blac
8、kandwhiteimage.©Snap-shot.com.JoyceVandeVegteFundamentalsofDigitalSignalProcessingCopyright©2002byPearsonEducation,Inc. UpperSaddleRiver,NewJersey07458 Allrightsreserved.FIGURE1-4Fourframesfromhigh-speedvideosequence.“Visi
