地面数字电视单频网系统运维探讨

Discussion on Operation and Maintenance of DTMB SFN System

中央广播电视节目无线数字化覆盖工程构建了众多单频网,根据单频网的特性,需要对这些单频网系统进行有针对性的运维。本文概括介绍了地面数字电视单频网系统以及单频网的特性,对单频网台站进行了分类,并对各分类台站的职责进行了描述。给出了单频网运维中需要重点关注的关键运行指标(KOI),以及在管理中遇到单频网变更需要采取的应对措施。

Central radio and television programs digital wireless coverage project has built a lots of DTMB SFN systems,and it's necessary to carry out specific operation and maintenance according to the characteristics of SFN.This paper generally introduces DTMB SFN system and its characteristics,classifies transmission stations in SFN,and describes the duties of these transmission stations.The paper also shows KOIs(Key Operation Indicator)that need to be focused on in operation and maintenance of single frequency network,and countermeasures that need to be taken when SNF changes in management.