Digital Television Systems[Book] 2009

wugh

Digital Television Systems[Book] 2009
【文件名】:10423@52RD_Digital Television Systems[Book] 2009.rar
【格　式】:rar
【大　小】:1706K
【简　介】:
【目　录】:




Fundamentals of digital television 1
1.1 Digital television 1
1.2 High-definition television 1
1.3 The digital programming platform 3
1.4 Interactivity 5
1.4.1 Interactive services 6
1.4.2 Television on mobile phones 8
1.5 Return channel for digital television 9
1.6 Digital television standards 11
1.6.1 The DVB-T standard 13
1.6.2 The ATSC standard 15
1.6.3 The ISDB-T standard 17
1.6.4 The ISDTV standard 19
1.6.5 The DTMB standard 20
1.6.6 Ultrahigh-definition television 22
1.7 Television receivers 22
2 Audio and video coding 25
2.1 Introduction 25
2.2 Source coding 27
2.3 The source coding process 28
2.4 Signal sampling 29
2.4.1 Sampling of the video signal 31
2.5 The quantization process 32
2.6 Development of the model for the quantizer 35
2.6.1 Quantization of a Gaussian signal 37
2.6.2 Quantization of the video signal 38
viii Contents
2.7 The encoding process 38
2.8 Videoenco ding standards 41
2.8.1 The MPEG-1 standard 41
2.8.2 The MPEG-2 standard 41
2.8.3 The MPEG-4 standard 42
2.8.4 The H-264 standard 43
3Fundamentals and standards of video and audio compression 44
3.1 An overview of audio and video compression 44
3.2 General concepts and fundamentals 45
3.3 The MPEG-4 standard 46
3.3.1 The MPEG-4 Visual standard 50
3.3.2 The MPEG-4 video encoding process 54
3.4 ITU-T H.264/AVC 57
3.4.1 History of H.264 58
3.4.2 Comparison of H.264/AVC standard with other standards 64
4 Channel coding for digital television 65
4.1 Introduction 65
4.2 Cyclic codes 65
4.2.1 Bose–Chaudhury–Hocquenghem (BCH) codes 67
4.2.2 Reed–Solomon (RS) codes 68
4.2.3 Low-density parity-check (LDPC) codes 69
4.3 Decoding cyclic codes 70
4.3.1 Algebraic decoding 70
4.4 Soft-decision decoding 74
4.4.1 The decoding of LDPC codes 74
4.5 Convolutional codes 75
4.5.1 Basic concepts 75
4.5.2 Non-recursive convolutional codes 76
4.5.3 Recursive systematic convolutional (RSC) codes 80
4.5.4 Representation of convolutional codes 83
4.5.5 Decoding convolutional codes 86
4.6 Concatenated codes 86
4.7 Error correction in digital television standards 87
4.7.1 Digital VideoBro adcast Terrestrial (DVB-T) system 87
4.7.2 Digital VideoBro adcast Satellite (DVB-S) system 89
4.7.3 Digital VideoBro adcast Satellite (DVB-S2) system 89
4.7.4 Digital VideoBro adcast Cable (DVB-C) system 90
4.7.5 Digital VideoBro adcast Hand-held (DVB-H) system 90
4.7.6 Advanced Television Systems Committee (ATSC) 90
4.7.7 Integrated Services Digital Broadcasting (ISDB) 91
4.7.8 International System for Digital Television (ISDTV) 91
Contents ix
4.7.9 Chinese Digital Television Terrestrial Broadcasting
(DTMB) system 91
4.7.10 Data Over Cable Service Interface Specification (DOCSIS) 92
4.7.11 Digital Multimedia Broadcasting (DMB) 93
5 Digital and analog transmission systems 94
5.1 Introduction 94
5.2 Amplitude modulation (AM) 94
5.2.1 Random signals andAM 96
5.2.2 DigitalAM signal 99
5.2.3 Suppressed carrier amplitude modulation (AM-SC) 101
5.2.4 AM-VSB modulation 101
5.2.5 Amplitude demodulation 102
5.2.6 Performance ofAM 103
5.3 Quadrature amplitude modulation (QUAM) 104
5.3.1 Single sideband amplitude modulation (AM-SSB) 105
5.3.2 Quadrature amplitude demodulation 107
5.3.3 Performance evaluation of SSB 108
5.3.4 Digital quadrature modulation (QAM) 108
5.4 Angle modulated systems 110
5.4.1 Angle modulation with random signals 111
5.4.2 Angle modulation with digital signal 115
6 Advanced Television Systems Committee standard (ATSC) 118
6.1 Introduction 118
6.2 Overview of the system 122
6.2.1 Source encoding and compression 123
6.2.2 Multiplexing of services and transport 124
6.2.3 Transmission system 124
6.2.4 Basic features of the video system 125
6.3 Transmission modes 126
6.3.1 Terrestrial transmission mode (8-VSB) 126
6.3.2 Terrestrial transmission mode (16-VSB) 132
6.3.3 Satellite transmission mode 132
6.4 Standard for interactivity 134
6.4.1 Java TV 136
7 Digital video broadcasting (DVB) 137
7.1 Introduction 137
7.1.1 Application fields of the DVB technologies 137
7.2 System features 139
7.2.1 Baseband processing – MPEG-2 139
x Contents
7.2.2 DVB transmission 141
7.3 Transmission standards 144
7.3.1 DVB-T 144
7.3.2 DVB-H 147
7.3.3 DVB-S2 149
7.3.4 DVB and Internet 150
7.4 Interactivity 151
7.4.1 DVB-RCT 152
7.5 Middleware 153
7.5.1 Multimedia Home Platform (MHP) 153
8 International Services Digital Broadcasting for Terrestrial
Television Broadcasting (ISDB) 155
8.1 Introduction 155
8.2 ISDB transmission 155
8.3 The transmission process 158
8.4 The channel encoding 161
8.4.1 Remultiplexing of the transport stream 162
8.4.2 Outer coding 162
8.4.3 Division of the transport stream in hierarchic layers 163
8.4.4 Power dispersion 163
8.4.5 Delay correction 164
8.4.6 The byte interleaver 164
8.4.7 Inner coding 165
8.5 Modulation 166
8.5.1 OFMD 166
8.5.2 Mapping 168
8.5.3 Time interleaving 173
8.5.4 Frequency interleaving 175
8.5.5 Frame composer 175
9 International System for Digital Television (ISDTV) 178
9.1 Introduction 178
9.2 Reference model for a terrestrial DTV system 180
9.3 Source coding 181
9.3.1 Videoco ding 182
9.3.2 Audioco ding 184
9.3.3 Data coding 188
9.4 Transport layer 189
9.4.1 MPEG-2 Systems Layer 191
9.5 Transmission and reception 193
9.5.1 BST-OFMD 194
9.6 Middleware 196
9.6.1 Ginga middleware 196
Contents xi
9.7 Interactivity channel 198
9.7.1 WiMAX 200
10 Digital terrestrial television multimedia broadcasting (DTMB) 202
10.1 Introduction 202
10.2 Scrambler 203
10.3 Forward error correction (FEC) code 204
10.3.1 Low-density parity-check (LDPC) codes 204
10.4 Signal constellation and mapping 205
10.5 Interleaving 206
10.6 Frame structure 207
10.6.1 Frame header 207
10.6.2 Frame body 208
10.7 Time-domain synchronous orthogonal frequency division
multiplexing (TDS-OFDM) 209
10.7.1 System model for TDS-OFDM 209
10.8 Post-baseband processing 211
10.9 Receiver design 211
Appendix A Evolution of television standards 213
A.1 The beginning of image broadcasting 213
A.2 The beginning of color broadcast 214
A.3 The PAL standard 215
A.4 The SECAM standard 217
A.5 The NTSC standard 218
Appendix B Signal analysis 219
B.1 Introduction 219
B.2 Fourier transform 219
B.3 Properties of the Fourier transform 224
B.4 The Nyquist theorem 229
B.5 Fourier transform in two dimensions 231
B.6 Discrete Fourier transform (DFT) 232
B.7 Discrete cosine transform (DCT) 233
B.8 The Hilbert transform 234
B.9 Useful Fourier transforms 235
B.10 Two-dimensional Fourier transforms 241
B.11 Use of the radiofrequency spectrum 242
Appendix C Random signals and noise 245
C.1 The autocorrelation function 245
C.1.1 Properties of the autocorrelation function 246
xii Contents
C.2 The power spectral density 246
C.2.1 Properties of the power spectral density 247
C.3 Linear systems 249
C.3.1 Expected value of output signal 249
C.3.2 The response of linear systems to random signals 250
C.4 Analysis of the digital random signal 252
C.4.1 Autocorrelation of the digital signal 253
C.4.2 Spectrum of the digital signal 254
C.5 Noise 255
C.5.1 Noise in modulated systems 258
Glossary 259
References 268
Index

wugh

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mafan88

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mafan88

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checkz

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lindabear

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xman3811

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