说明：  这是上海交通大学著名数字电视专家，第一批长江学者特聘教授张文军的关于数字电视的PPT。该PPT很专业，学术水平很高，制作很精美。涵盖了包括模拟电视，数字电视，各种音视频编解码方案，数字电视在我国的发展概括等内容，是从事音视频信号处理人月不可多得的好资料。
(This is the famous Shanghai Jiaotong University Digital TV experts, the first batch of the Yangtze River scholar Professor Wenjun on digital TV PPT. The PPT is very professional, high academic standards, the production is exquisite. Covering analog TV, digital TV, all kinds of audio and video codec program, digital TV in China, such as the development of a general content, is to engage in audio and video signal processing were hard to come by on a good information.)