地面数字电视广播信号源系统优化实践  

Optimization Practice of Terrestrial Digital TV Broadcasting Signal Source System

作　　者：单志勇 张宇 刘劲松 Shan Zhiyong;Zhang Yu;Liu Jinsong(Yangzhou Radio and Television Station,Jiangsu 225002,China)

机构地区：[1]扬州广播电视台,江苏225002

出　　处：《广播与电视技术》2024年第10期102-105,共4页Radio & TV Broadcast Engineering

摘　　要：本文介绍了在发射塔迁建工程建设过程中,为提高地面数字电视信号源系统的可靠性所进行的优化工作。具体措施是将本地节目信号源的配置从主备两路升级为主备辅三路,增强了信号源的冗余性。此外,为了便于检查和维护,将播出交换机端口输出码流的推送方式从分频道推送不同码流改为不分频道推送相同码流,简化了维护流程。这些改进措施进一步提升了地面数字电视系统的安全播出水平。This article introduces the optimization work carried out during the construction process of the transmission tower relocation project to improve the reliability of the ground digital TV signal source system.Specific measures include upgrading the configuration of local program signal sources from two main and backup channels to three main and backup auxiliary channels,enhancing the redundancy of signal sources.In order to facilitate inspection and maintenance,the output code stream of the broadcast switch port is optimized from pushing different code streams by channel to pushing the same code stream signal source without channel,simplifying the maintenance process.These improvement measures further improve the safe broadcast level of terrestrial digital television systems.

关 键 词：地面数字电视 信号源 可靠性 优化 

分 类 号：TN949.197[电子电信—信号与信息处理]