HFC的回传通道系统模型和技术要求  

Model and Technical Requirements of HFC' Return Channel System

作　　者：周强 

机构地区：[1]摩托罗拉宽带联网部

出　　处：《广播与电视技术》2007年第7期44-44,46-48,共4页Radio & TV Broadcast Engineering

摘　　要：针对目前国内对HFC双向网心存疑惑的问题,本文试图向大家推荐一个合适的HFC的回传通道系统模型,并在该模型基础上探讨了HFC双向网的技术要求,使得HFC双向网的建设更具理论系统性和指导性。There is a common question of 'Why does using the successful experience of establishing two-way HFC network in North America in China appear the situation of non-acclimatization?' in the industry. To counter this, the paper, by making up the model of HFC's return path system, deeply analyses some contents such as AGC of long loop, unit gain, power per Hz, norm of 6dB and norm of 30dB, and comprehensively goes further into the technical requirements of HFC two-way network. The aim is to make the establishment of HFC two-way network featuring theory's systematicness and directions.

关 键 词：HFC双向网 回传通道 系统模型 每Hz频率 单位增益 

分 类 号：TN943.6[电子电信—信号与信息处理]