1 INTRODUCTION 1
Overview of Digital Signal Processing 2
A Few Words about MATLAB？ 5
2 DISCRETE-TIME SIGNALS AND SYSTEMS 7
Discrete-time Signals 7
Discrete Systems 20
Convolution 22
Difference Equations 29
Problems 35
3 THE DISCRETE-TIME FOURIER ANALYSIS 40
The Discrete-time Fourier Transform(DTFT) 40
The Properties of the DTFT 47
The Frequency Domain Representation of LTI Systems 53
Sampling and Reconstruction of Analog Signals 60
Problems 74
The Bilateral z-Transform 80
4 THE z-TRANSFORM 80
Important Properties of the z-Transform 84
Inversion of the z-Transform 89
System Representation in the z-Domain 95
Solutions of the Difference Equations 105
Problems 111
5 THE DISCRETE FOURIER TRANSFORM 116
The Discrete Fourier Series 117
Sampling and Reconstruction in the z-Domain 124
The Discrete Fourier Transform 129
Properties of the Discrete Fourier Transform 139
Linear Convolution using the DFT 154
The Fast Fourier Transform 160
Problems 172
6 DIGITAL FILTER STRUCTURES 182
Basic Elements 183
IIR Filter Structures 183
FIR Filter Structures 197
Lattice Filter Structures 208
Problems 219
7 FIR FILTER DESIGN 224
Preliminaries 224
Properties of Linear-phase FIR Filters 228
Window Design Techniques 243
Frequency Sampling Design Techniques 264
Optimal Equiripple Design Technique 277
Problems 294
8 IIR FILTER DESIGN 301
Some Preliminaries 302
Characteristics of Prototype Analog Filters 305
Analog-to-Digital Filter Transformations 327
Lowpass Filter Design Using MATLAB 345
Frequency-band Transformations 350
Comparison of FIR vs.IIR Filters 363
Problems 364
9 APPLICATIONS IN ADAPTIVE FILTERING 371
LMS Algorithm for Coefficient Adjustment 373
System Identification or System Modeling 376
Suppression of Narrowband Interference in a Wideband Signal 377
Adaptive Line Enhancement 380
Adaptive Channel Equalization 380
Summary 383
10 APPLICATIONS IN COMMUNICATIONS 384
Pulse-Code Modulation 384
Differential PCM(DPCM) 388
Adaptive PCM and DPCM(ADPCM) 392
Delta Modulation(DM) 396
Linear Predictive Coding(LPC)of Speech 399
Dual-tone Multifrequency(DTMF)Signals 403
Binary Digital Communications 408
Spread-Spectrum Communications 409
Summary 411
BIBLIOGRAPHY 412
INDEX 413