数字电视系统的解复用和同步问题

数字电视系统的解复用和同步问题 The Demultiplexing and Synchronization of Digital TV System 王延平 1 first-author 罗学金 1 苏祥芳 1 陈平 1 武汉大学电子信息学学院,武汉,430072 武汉大学电子信息学学院,武汉,430072 College of Electronic Information, Wuhan University College of Electronic Information, Wuhan University 解复用和同步是数字电视系统中的关键技术，涉及到复杂的实时控制过程．本文阐明了数字电视系统中ＭＰＥＧ－２传输流解复用的实现方法，并详细讨论了ＭＰＥＧ－２解码器中系统时钟的恢复以及视频和音频的同步问题． Demultiplexing and synchronization is core technology of digital TV system and involves complex real time control,which should be implemented upon real time operation system. This paper discusses the method of MPEG-2 transport stream demultiplexing in digital television system and introduces detailed implementation of MPEG-2 decoder’s system clock recovery and synchronization between video and audio. 顶置盒 MPEG-2 传输流 同步 set-top box MPEG-2 transport stream synchronization 10.14188/j.1671-8836.2000.01.028 TN94 武汉市科委重点项目!（9810010051） 2000-01-01 2021-04-01 1