双向HFC宽带有线电视网改造中汇集干扰及汇集均衡问题的研究

The research on transforming assemble jamming problem and assemble balance problem for two-way wide band cable television network

通过对原有单向有线电视网络的升级改造,建立广播式业务信道和交互式业务信道,实现广播电视的数字化、综合化、宽带化、智能化和多媒体化;同时,能够为用户提供各类基本业务(话音、数据和视频)以及增值业务(虚拟专网、IP电话、远程教学等).结合银川市区有线电视网的改造工作,阐述了传统单向有线电视网改造为双向HFC宽带综合信息网所面临的汇集干扰(汇流噪声)、汇集均衡、有线电视网络传输通道安全性等问题及解决这些问题所采取的技术方法.

The paper sets up broadcasting professional channel and mutual pro fe ssional channel by an upgrade transformation of original one-way cable televis ion.This purpose is to achieve the digitalization,unitlization,wide-bandlizati on,intellectualization,and polymedialization.Meanwhile,it provides all sorts of basic professional work(voice,data and video) and increased value professional w ork(VPN,IP Voice and Remote Teaching etc.) for our customers.According to author 's participation of transforming the cable television network in Yinchuan,this a rticle expounds the technical methods when transforming traditional one-way ca ble television network into two-way HFC wide band unified information network confront the safe problems and the solutions to assemble jamming,assemble balanc e and transmission passage.