Digital Signal Processing – John G. Proakis & Dimitris G. Manolakis | DSP Study Guide

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Digital Signal
Processing
Principles, ~ l ~ o r i t h mand
i , Applications
Third Edition




John G. Proakis
Northeastern University

Dimitris G . Manolakis
Boilon College




PRENTICE-HALLINTERNATIONAL, INC.

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This edition may be sold only in those countries to which it is consigned by Prentice-Hall International.
It is not to be reexported and it is not for sale in the U.S.A.. Mexico. or Canada.

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All rights resewed. No part of this book may be
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PREFACE

1 INTRODUCTION

1.1 Signals, Systems. and Signal Processing 2
1.1.1 Basic Elements of a D~gitalSignal Processing System. 4
1.1.2 Advantages of Digital over Analog Signal Processing, 5

1.2 Classification of Signals 6
1.2.1 Multichannel and Multidimensional Signals. 7
1.2.2 Continuous-Time Versus Discrete-Tlme Signals. 8
1.2.3 Continuous-Valued Versus Discrete-Valued Signals. 10
1.2.4 Determinist~cVersus Random Signals. 11

1.3 T h e Concept of Frequency in Continuous-Time and
Discrete-Time Signals 14
1.3.1 Continuous-Time Sinusoidal Signals, 14
1.3.2 Discrete-Time Sinusoidal Signals. 16
1.3.3 Harmonically Related Complex Exponentials, 19

1.4 Analog-to-Digital and Digital-to-Analog Conversion 21
1.4.1 Sampling of Analog Signals, 23
1.4.2 The Sampling Theorem, 29
1.4.3 Quantization of Continuous-Amplitude Signals, 33
1.4.4 Quantization of Sinusoidal Signals. 36
1.4.5 Coding of Quantized Samples. 38
1.4.6 Digital-to-Analog Conversion, 38
1.4.7 Analysis of Digital Signals and Systems Versus Discrete-Time
Signals and Systems, 39

1.5 Summary and References 39
Problems 40

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