载噪比与复合三次差拍比的讨论  

Analysis on Carrier to Noise Ratio and CTB

作　　者：李育林[1] 

机构地区：[1]黄冈师范学院,湖北黄冈438000

出　　处：《中国有线电视》2004年第3期47-50,共4页China Digital Cable TV

摘　　要：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 。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.

关 键 词：载噪比 复合三次差拍比 有线电视 放大器 工作电平 

分 类 号：TN943[电子电信—信号与信息处理]