HFC双向网络回传通道的调试技术  

The Modultion Technology of HFC Bi-Network Return Path

作　　者：熊承国 

机构地区：[1]无锡路通电子技术有限公司,江苏无锡214063

出　　处：《中国有线电视》2005年第18期1808-1819,共12页China Digital Cable TV

摘　　要：文中给出回传通道调试的相关研究成果,介绍回传通道的前端信号处理、光纤链路调节、电缆分配网设置的方法,提出采用等效数字调制信号源、通过测试回传通道NPR性能评价回传通道质量的实用测试方法。In this article we have presented the results of return path debugging related research. We have introduced the head end signal procession, optical fiber link adjustment and cabled distribution network of return path. At the same time, we have also provided several practical test methods for return path quality assessment, such as evaluation through return path NPR performance test using equivalent digital modulated signal source.

关 键 词：等效数字调制信号源 噪声功率比 信号功率谱密度 

分 类 号：TN915.62[电子电信—通信与信息系统]