模数共存时期电视信号传输的前端改造建设

Analog Signal and Digital Signal Reconstruction Period of Coexistence in Front of TV Transmission System

在有线电视向数字电视过渡时期,模拟传输系统与数字传输系统并存,针对这种情况,结合公司发展实际,提出对中心机房电视信号传输系统的模拟与数字信号源、备份信号源及干线的混合分配网络进行改造的具体方案。

This paper mainly discusses,during the period of cable television to digital television transition,the coexistence of analog transmission system and digital transmission system.In view of this situation,combined with the specific circumstances of the development of our company,mixture of distribution network of the TV signal transmission system in the central engine room simulation and digital signal source,backup signal source and route,the actual scheme reform are proposed.