基于HFC网络的抗噪技术研究

Research to resist the noise based on HFC network

目前我国有线电视网大多为HFC网络,这种接入网已成为用户进入信息高速公路的"瓶颈"。为了实现双向数据、交互式综合业务的开展,关键问题是解决HFC网络上行信道的噪声问题。文章主要介绍了在基于CATV的HFC双向网络中抗噪声的常见方法及同步码分多址(S-CDMA)改进技术。

Currently, Community Antenna TeleVision networks in our country are HFC networks mostly, the access network already becomes the ＂bottleneck＂ when the users enter information superhighway.In order to implement Two-Way data and interactive composite profession＇s development,the crucial issue is to resolve the noise in up channel of the HFC network.The article is to introduce methods which could reduce the noise interruption and S-CDMA （synchronous division multiple access ） technology in the double-way HFC network based on CATV.