Digital television: MPEG-1, MPEG-2, and principles of the DVB system
The introduction of digital TV in Europe heralds a revolution in television standards. Not only will it increase the capacity of the broadcasting channels by a factor of eight or more but the potential as a means of electronic communication is immense - from multidiffusion, pay per view and downloading of software today to interactive TV in the future. This book provides the first accessible introduction to digital TV. This text describes the underlying principles of this new technology and its implementation through the European DVB System (Digital Video Broadcasting), which has been adopted by all member states of the European Union as well as many other countries throughout the world. After an overview of analogue TV systems and video digitization formats, the author then examines the various steps of signal processing - taken in order from transmission to reception - to facilitate an understanding of the architecture and function of the main blocks of the Integrated Receiver/Decoder (IRD) or "set-top" box. This comprehensive introduction to a new era of broadcast technology will be compulsory reading for all with an interest in this area.
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Digitization of video signals
compression of video and audio
11 other sections not shown
adaptation field algorithm allows amplitude analogue applied band bandwidth bit-rate bitstream block broadcasting bytes cable carrier channel coding chrominance clock coefficients colour compression rate conditional access control word convolutional coding decoder defined demodulation descrambling digital TV digital video DVB standard DVB-C DVB-S DVB-SI DVB-T elementary stream encoder filtering format forward error correction frame functions HDTV input interface ISO/IEC JPEG layer luminance macroblock maximum Mb/s mode modulation MPEG audio MPEG-2 transport multiplex NTSC OFDM optional output PAL+ parameters parity PES packet pixels processor programme psycho-acoustical model QPSK quadrature quantization ratio receiver Reed-Solomon coding resolution RF channel sampling frequency satellite scrambling SECAM sequence set-top box spectral efficiency sub-band subcarrier symbol period synchronization television terrestrial transmitted transport packet transport stream video signal