市县长距离环网建设的解决方案  

Solution for Digital TV Long Distance Transmission Ring from City to Counties

作　　者：张平 刘彦 

机构地区：[1]河北广电张家口网络公司,河北张家口075000

出　　处：《中国有线电视》2010年第6期710-713,共4页China Digital Cable TV

摘　　要：结合张家口市县联网的工程实例,从理论分析和工程实践上给出了实现长距离传输的技术难题和整体解决方案,在全国大力推进县级数字电视整体转换的今天,该方案可为各中小有线电视网的建设提供借鉴。To based on the network construction from city to counties in zhangjiakou city, this paper talks about the technical difficulties and the overall solution for the digital TV fiber - optic long distance transmission in theory analysis and engineering practice. At the time that county level digital TV transformation is highly promoted in China, this solution may be used for reference by small or medium size TV network construction.

关 键 词：色散 受激布里渊散射 自相位调制 调制误差比 

分 类 号：TN943.6[电子电信—信号与信息处理]