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随着广播电视技术的迅速发展,有线电视网络数字化已是大势所趋。数字前端系统是有线电视网络的交换中心,是整个有线电视系统的核心,它的设计对整个系统非常重要。本文结合兰州石化有线电视台节目转播现状,以有线数字前端系统的建设为背景,介绍了有线数字电视前端系统的组成、设计原则、设备选型等,为实现整个数字电视业务的顺利开展搭建了基本平台。
With the rapid development of radio and television technology, the digitalization of cable television networks is the trend of the times. Digital front-end system is the cable television network switching center, is the core of the entire cable television system, its design is very important to the entire system. Based on the status quo of Lanzhou Petrochemical Cable TV program broadcasting and the construction of wired digital front-end system, this paper introduces the composition, design principles and equipment selection of cable digital front-end system. In order to realize the smooth development of the entire digital television service, platform.