地面数字电视本地节目转播系统优化实践  

Optimization Practice of Local Program Broadcasting System for Terrestrial Digital Television

作　　者：李泓林 Li Honglin(Guizhou Radio and Television Technology Center,Guizhou 550001,China)

机构地区：[1]贵州省广播电视技术中心,贵州550001

出　　处：《广播与电视技术》2025年第1期78-81,共4页Radio & TV Broadcast Engineering

摘　　要：本文介绍了地面数字电视覆盖网省级骨干发射台为实现本地节目覆盖所采取的一系列优化措施。这些措施包括建立专用光纤以提供更稳定的信号传输、优化央视节目信号的获取方式、升级发射系统以增强其稳定性和可靠性。这些措施不仅优化了中央节目的信号源系统,还成功实现了本地电视节目的地面覆盖,同时大幅提升了整个地面数字电视覆盖系统的安全播出水平。This article introduces a series of optimization measures taken by provincial backbone transmission stations of terrestrial digital TV coverage networks to achieve local program coverage.These measures include establishing dedicated optical fibers to provide more stable signal transmission,optimizing the acquisition method of CCTV program signals,and upgrading the transmission system to enhance its stability and reliability.These measures not only optimized the signal source system of the CCTV program,but also successfully achieved ground coverage of local TV programs,while significantly improving the safe broadcasting level of the entire ground digital TV coverage system.

关 键 词：数字电视 信号源 发射 优化实践 

分 类 号：TN94[电子电信—信号与信息处理]