数字信号处理英文版课件：Chapter 1 Introduction

Discrete-time

SignalProcessingReferenceBook数字信号处理教程(第二版）,程佩青,清华大学出版社数字信号处理,张元、汪元宝、方穗明编,北京工业大学出版社数字信号处理,王世一,北京理工大学出版社Chapter1

Introduction一、signal，systemandsignalprocessing

1．Signal

Whatisthesignal？BasicparametersFrequencyandamplitude3-30kHz:Verylowfrequency VLF30-300kHz:Lowfrequency LF300~3000kHz:MediumfrequencyMF3-30MHz:Highfrequency HF30-300MHz:VeryHighfrequencyVHF0.3~3GHz:UltrahighfrequencyUHFcalssify1-D2-Dandvectorsignalperiodicsignalandaperiodicsignalrandomsignalanddeterministicsignalenergyandpowersignalcontinuous-timesignalanddiscrete-timesignalSystem

WhatistheSystem？Classify：

Continuous-timesystemDiscrete-timesystemsignalprocessing

ContentFiltering（滤波）、transformation（变换）、detection（检测）、spectralanalysis（谱分析）、estimation(估计)、compression(压缩)、identification

（识别）IntroductionofDSPBeforeinthe1960softhe20thcentury…...1965年，Cooley-Turkey

FFT（FastFourierTransform）

二、StructureoftheDSPsystem

-30123435474nT2T-1ADCDSP0y(t)DACPoF三、CharacteristichighprecisionhighcredibilityflexibilityeasytolargescaleintergrateTDM（time-divisionmultiplexing）TwodimensionandmultidimensionalprocessionEasytoimplementthehighcomplexoperationLimitation

四、DevelopmentContentsIntroduction--DevelopmentandapplicationofDSPSamplingofContinuous-TimeSignals(Chap.4)TransformAnalysisofLinearTime-InvariantSystem(Chap.5)StructuresforDiscrete-TimeSystems(Chap.6)

ContentsFilterDesignTechniques(Chap.7)TheDi