1 Continuous Signals 1
1.1 Signals and Descriptions 1
1.2 The Fourier Transform 13
1.3 The Laplace Transform 21
2 Discrete Signals and Random Signals 29
2.1 Spectra of Discrete Signals and the z-Transform 29
2.2 Random Signals and Descriptions 42
3 Basic Aspects of Signals Processing 55
3.1 Linear Processing 55
3.2 Convolution,Correlation,and Filtering 70
3.3 The Processing of Random Signals 74
3.4 Nonlinear Processing 80
4 Modulation 85
4.1 Introduction 85
4.2 Signal Sampling and Reconstitution 88
4.3 Other Modulation Processes 98
5 Filters 109
5.1 Introduction 109
5.2 General Aspects of Filter Performance 110
5.3 Analogue Filters 115
5.4 Digital Filter 120
6 Communication Networks 130
6.1 WANs,LANs,and MANs 130
6.2 Switching Techniques 134
6.3 Asynchronous Transfer Mode 152
7 Fiber Optic Communication 165
7.1 Historical Perspective 165
7.2 Advantages of Fibers 167
7.3 Optical Fiber Communication Systems 178
7.4 Applications of Fiber Optic Communications 187
8 Mobile Communication 199
8.1 First Generation(1G)Analog Networks 199
8.2 Second Generation(2G)Cellular Networks 206
8.3 Third Generation(3G)Wireless Networks 219
9 Multimedia Signal Processing System 231
9.1 Introduction 231
9.2 Digitization of Audio and Video 237
9.3 Multimedia Services 248
9.4 Hardware Implementation 252
10 Programmable DSPs 259
10.1 Introduction 259
10.2 Low Cost 265
10.3 Other Performance 282
10.4 Summary 291
11 The ARM Architecture 295
11.1 The Acorn RISC Machine 295
11.2 Architectural lnheritance 296
11.3 The ARM Programmer's Model 301
11.4 ARM Development Tools 309
Bibliography 318
Appendix A 希腊字母表 319
Appendix B 数学公式与计算 320