视频信号数字化传输关键技术解析  

Analysis of Video Signal Digitization Transmission Crucial Technologies

作　　者：李剑华[1] 

机构地区：[1]福建东南广播电视网络有限公司,福建福州350000

出　　处：《中国有线电视》2011年第1期18-21,共4页China Digital Cable TV

摘　　要：数字电视技术经过多年的发展已相当成熟,特别是目前各省台演播室数字化建设改造基本完成,更是加速了端到端数字化播出的进程。对福建省台8套节目数字化下传实例做一个简要的介绍,针对视频信号在数字化传输维护中所遇到的调制、适配、抖动3个技术问题进行分析。After years of development,the digital television technology has been quite mature.Recently the digitization construction transformation has nearly finished in provinces television station studio,which accelerates the course of the point-to-point digitization broadcast.This article makes a brief introduction of the Fujian Province television station eight series television program digitization broadcasting,and then analyzes three technical problems which are modulation,adaptation and dithering,based on the digital transmission maintenance.

关 键 词：数字电视技术 QAM调制 DS3适配 PCR抖动 

分 类 号：TN941.3[电子电信—信号与信息处理]