中央电视台多演播室共用高清晰度电视系统  

Analyses about Standard, State and Quality of Physically-foamed Coaxial Cable

作　　者：陈克新[1] 白宇[1] 沈齐[1] 

机构地区：[1]中央电视台

出　　处：《广播与电视技术》2007年第12期30-30,32,34,36,共4页Radio & TV Broadcast Engineering

摘　　要：目前,标准清晰度电视向高清晰度电视的过渡时期,如何在兼顾现有标清节目制作的同时建设一个面向未来的高清电视节目制作系统,是所有电视节目制作单位都要面临的一个课题。本文介绍的"中央电视台多演播室共用高清晰度电视系统"很好地解决了这个问题。Coaxial cable is widely used in HFC networks. This article introduces the existing industry-standard of coaxial cable systematically. Based on analyses on the development of domestic physically-foamed coaxial cable, the article presents a point of view that cable is not the key factor which affects the quality of HFC network, and gives advices that one does not think too much about the number of shielding layer and weaving and takes more attention to improve the quality of cable construction. These advices will be a practical guide for building HFC network.

关 键 词：多演播室共用 双演播室集联 数字高清岛 高清晰度电视 高标清兼容系统 

分 类 号：TN949.17[电子电信—信号与信息处理]