载噪比与复合三次差拍比的讨论

讨论有线电视系统的两项主要指标 :载噪比与复合三次差拍比 ,推出这两项指标的具体计算过程和合理分配方案。为确保载噪比和复合三次差拍比的指标要求 ,就必须合理选择放大器的工作电平和尽量增加放大器并联路数

Analysis on Carrier to Noise Ratio and CTB

This theme has mentioned two main standards which have important influence on the CATV system, that is carrier to noise ratio and CTB. The theme also gives detailed calculations of the two standards and proper division schemes, and what is more, makes out the demands which can fully insure them and the important conclusions about how to select a working level for an amplifier and increase the ways of parallel connections as possible.