视频信号数字化传输关键技术解析

Analysis of Video Signal Digitization Transmission Crucial Technologies

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.