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详细说明： This book does not aim to make the reader an expert in digital television (which the author himself is not). Rather, its purpose is to describe and explain, as simply and as completely as possible, the various aspects of the very complex problems that had to be solved in order to define reliable standards for broadcasting digital pictures to the consumer, and the solutions chosen for the European DVB system (Digital Video Broadcasting) based on the international MPEG-2 compression standard. The book is intended for readers with a background in electronics and some knowledge of conventional analog television (a reminder of the basic principles of existing television standards is presented for those who require it) and for those with a basic digital background. The main goal is to enable readers to understand the principles of this new technology, to have a relatively global perspective on it, and, if they wish, to investigate further any particular aspect by reading more specialized and more detailed books. At the end, there is a short bibliography and a glossary of abbreviations and expressions which will help readers to access some of these references. For ease of understanding, after a general presentation of the problem, the order in which the main aspects of digital television broadcast standards are described follows the logical progression of the signal processing steps on the transmitter side—from raw digitization used in TV studios to source coding (MPEG-2 compression and multiplexing), and on to channel coding (from forward error correction to RF modulation). JPEG and MPEG-1 “predecessor” standards of MPEG-2 are also described, as MPEG-2 uses the same basic principles. ...展开收缩
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