１引言２０００年，新世纪的开始。在这新的世纪里传统的电视工业将在崭新的数字技术的推动下焕发出新的生机。在新的世纪《电视技术》将继续贯彻以中级应用技术为主兼顾学术与普及、以国内技术为主兼顾国内外信息与商情的编辑方针，以促进行业的技术进步、提高从业者的技术素? 1 Introduction 2000, the beginning of a new century. In this new century, the traditional television industry will be revitalized with new digital technologies. In the new century, “TV technology” will continue to implement the editorial guideline that mainly focuses on middle-level applied technology and academic and popularization, and focuses on both domestic and foreign technologies and information at home and abroad so as to promote the technological progress of the industry and enhance the technical skills of practitioners ?