通信原理双语简明教程PDF电子书下载

Chapter 1 Introduction 1

1.1 Basic concepts and models of communication system 2

1.1.1 Communication system model 2

1.1.2 Analog communication model 2

1.1.3 Digital communication model 3

1.2 The classification of communication systems 4

1.2.1 Modulation mode 4

1.2.2 Division of frequency band 5

1.3 Information and its measurement 6

1.4 The main performance index of communication systems 7

Summary and discussion 8

Homework 9

Vocabulary 9

Chapter 2 Random processes 11

2.1 Basic concepts of random processes（Definition of random processes） 12

2.1.1 Definition 12

2.1.2 Numerical characteristics of a random process 13

2.2 Stationary Random Process 14

2.2.1 Definition 14

2.2.2 Ergodicity 15

2.2.3 Autocorrelation function of stationary random processes 17

2.2.4 Power Spectral Density 17

2.3 Gaussian process 19

2.4 Transmission of a random process through a Linear Time-Invariant （LTI）filter 21

2.5 Narrowband random process 23

2.6 Sine wave plus narrowband Gaussian noise 26

2.7 Gaussian white noise and band pass white noise 27

Summary and discussion 29

Homework 30

Vocabulary 31

Chapter 3 Channel 32

3.1 The classification of channels 33

3.1.1 Wireless channels 33

3.1.2 Wire channel 34

3.2 Channel models 35

3.2.1 Modulation channel model（调制解调模型） 35

3.2.2 Coding channel model（编码信道模型） 36

3.3 Influence of the channel characteristics on transmission （for modulation model） 37

3.3.1 Influence of constant parameter channel on signal transmission 37

3.3.2 Influence of random parameter channel of signal transmission 37

3.4 Channel capacity （continuous channel） 40

Summary and discussion 41

Homework 42

Vocabulary and terminologies 42

Chapter 4 Continuous-wave modulation （Analog modulation system） 43

4.1 Introduction 43

4.2 Linear modulation 44

4.2.1 AM 45

4.2.2 Double-Sideband Modulation 46

4.2.3 Single-Sideband Modulation 47

4.2.4 Vestigial Sideband Modulation 49

4.3 Anti-noise performance of linear demodulation 51

4.3.1 Noise in linear receiver using coherent detection 52

4.3.2 Noise in AM receivers using envelope detection 54

Homework （part 1） 57

4.4 Angle modulation （Non-linear modulation process） 58

4.4.1 Basic definitions 58

4.4.2 NBFM（窄带调频） 60

4.4.3 Wide-band frequency modulation （WBFM） 61

4.4.4 Generating an FM signal 62

4.4.5 Demodulation of FM signals 63

4.4.6 Noise in FM receivers 64

4.5 Frequency-division multiplexing（频分复用） 66

Summary and discussion 67

Homework （part 2） 68

Terminologies 68

Chapter 5 Pulse modulation 69

5.1 Sampling process 70

5.2 Analog pulse modulation（模拟脉冲调制） 72

5.3 Quantization process（量化过程）of sampled signal 74

5.3.1 Uniform quantization（均匀量化） 75

5.3.2 Nonuniform quantization 76

5.4 PCM （Pulse code modulation，脉冲编码调制） 78

5.4.1 The principle of PCM 78

5.4.2 Noise in PCM system 79

5.4.3 Delta modulation（增量调制） 80

5.4.4 DPCM （Differential pulse code modulation，差分脉冲调制） 82

5.5 TDM（Time-Division Multiplexing，时分复用） 82

Summary and discussion 84

Homework 84

Terminologies 85

Chapter 6 Baseband pulse transmission 86

6.1 Waveform and frequency characteristics of baseband digital signal 87

6.1.1 Waveform of baseband digital signal 87

6.1.2 Symbol code types of baseband digital signals for transmission 88

6.1.3 Frequency characteristic 89

6.2 Matched filter 91

6.3 Error rate due to noise 93

6.3.1 Binary polar baseband system 93

6.3.2 The unipolar baseband system 94

6.4 Intersymbol Interference 95

6.4.1 Nyquist’s criterionⅠ 96

6.4.2 Nyquist’s criterionⅡ 98

6.5 Eye pattern 100

Summary and discussion 101

Homework 101

Terminologies 102

Chapter 7 Passband data transmission （Digital passband transmission） 103

7.1 The basic principle of three digital passband modulation 104

7.1.1 ASK 104

7.1.2 FSK 106

7.1.3 PSK（Absolute phase shift keying） 108

7.1.4 DPSK （Differential PSK） 110

7.2 Anti-noise performance of digital passband modulation system 111

7.2.1 Bit error rate of ASK 111

7.2.2 Bit error rate of 2FSK 112

7.2.3 Bit error rate of PSK 114

7.2.4 Performance comparison of digital keying transmission system 115

7.3 Hybrid amplitude/phase modulation schemes 116

7.4 OFDM system 117

Summary and discussion 118

Homework 119

Terminologies 120

Chapter 8 Further reading：new technologies in communication systems 121

8.1 Compressive sensing （CS） 121

8.1.1 Introduction 121

8.1.2 The mathematics theory 122

8.1.3 Application 124

8.2 Ultra wideband （UWB） system 126

8.2.1 The definition of UWB 126

8.2.2 Comparison with other wireless communications 127

8.2.3 Feature of UWB 127

8.2.4 Impulse modulation signal in UWB signal 128

8.2.5 The application of UWB 129

8.3 MIMO technology 130

8.3.1 The model of MIMO 131

8.3.2 Applications 132

References of Chapter 8 135

附录A MATLAB仿真实验 136

Experiment 1 Continuous-wave modulation （Corresponding to Chapter 4） 136

Experiment 2 Pulse modulation （Corresponding to Chapter 5） 148

Experiment 3 Digital passband transmission （Corresponding to Chapter 7） 160

附录B 实验箱实验 181

实验一 各种模拟信号源实验 181

实验二 脉冲编码调制PCM 185

实验三 AMI/HDB 3 编码和译码过程实验 192

实验四 FSK调制解调实验 197

实验五 通信系统综合实验 202

附录C 误差函数表 207

参考文献 210