CMMB地方节目传输的探索和实践  

Exploration and Practice of CMMB Local Program Transmission

作　　者：徐辉 张清 宋春荣 

机构地区：[1]山东省广电局中波中心 [2]山东电视台发射台 [3]山东省广电局监测中心

出　　处：《广播与电视技术》2010年第6期38-40,15,共3页Radio & TV Broadcast Engineering

摘　　要：CMMB地方节目传输利用广电SDH网,实现了省级信号至各地市的传输。在不增加设备的情况下,解决了同时传送加密卫视、清流全运两套节目的问题。In recent years, construction of CMMB network is developing rapidly. Solving transmission of local programs is an element that commercial operators have to consider. In this paper, CMMB local signal transmission modes are explored and practiced, such as using SDH network to realize signal transmission from province to city, or without additional equipment to send encrypted satellite TV and unencrypted National Games TV at the same time. Although there will be further optimization and improvement in the future, but these modes are valuable to the industry.

关 键 词：信号传输 SDH网 协议转换器 交换机 QAM 

分 类 号：TN948.14[电子电信—信号与信息处理]