- 1、本文档共20页,可阅读全部内容。
- 2、有哪些信誉好的足球投注网站(book118)网站文档一经付费(服务费),不意味着购买了该文档的版权,仅供个人/单位学习、研究之用,不得用于商业用途,未经授权,严禁复制、发行、汇编、翻译或者网络传播等,侵权必究。
- 3、本站所有内容均由合作方或网友上传,本站不对文档的完整性、权威性及其观点立场正确性做任何保证或承诺!文档内容仅供研究参考,付费前请自行鉴别。如您付费,意味着您自己接受本站规则且自行承担风险,本站不退款、不进行额外附加服务;查看《如何避免下载的几个坑》。如果您已付费下载过本站文档,您可以点击 这里二次下载。
- 4、如文档侵犯商业秘密、侵犯著作权、侵犯人身权等,请点击“版权申诉”(推荐),也可以打举报电话:400-050-0827(电话支持时间:9:00-18:30)。
查看更多
HFC光链路常规设计
院 系: 传媒技术学院
专 业: 广播电视工程
2014年6月26日
课程设计任务书
学生姓名 学号 课程名称 《有线电视网络课程设计》 设计题目 楼陈区域 CATV光纤网络设计 设计目的、主要内容
摘 要
近年来,“天上卫星传送,地上有线覆盖”的星网结合模式,不仅是21世纪实现广播电视覆盖的最佳方式,也将成未来信息网络的基础构架。这样,立足于现有的有线电视HFC网络,融入现代通信技术、宽带网络技术和多媒体技术,我们便可以打破传统的行业界限,有效地实现“三网融合”,建立起一个宽带高速的公用信息网络体系。本次课程设计主要设计的是简单的光纤干路部分,通过光发射机发射光信号,经过光分光器分路后送到各个光节点。
关键词:HFC、光纤网络、光分路器、光节点
目 录
1 HFC光链路系统·······················································1
1.1 概述·······························································1
1.2 组成·······························································1
1.2.1 光纤·····························································1
1.2.2 同轴电缆·························································1
1.2.3用户分配网························································1
2 楼陈区域光纤网络设计·················································2
2.1 楼陈区域设计方案····················································2
2.2 设计原理及依据·····················································3
3 技术要求······························································6
4 系统指标分配与计算····················································7
4.1光纤损耗····························································7
4.2 分光比······························································7
4.3链路损耗····························································8
4.4 光发射机功率确定····················································8
5光发射机及光接收机的选型··············································9
5.1光发射机的选型······················································9
5.2光接收机的选型·····················································10
6 心得体会····························································12
7参考文献····························································131 HFC光链路系统
1.1 概述
HFC即混合光纤同轴电缆网,是指HybridFiber-Coaxial的缩写。是一种经济实用的综合数字服务宽带网接入技术。HFC通常有光纤干线、同轴电缆支线和用户配线网络三部分组成,从有线电视台出来的节目信号先变成光信号在干线上传输;到用户区域后把光信号转换成电信号,经分配器分配后通过同轴电缆送到用户。它与早期CATV同轴电缆网络的不同之处主要在于,在干线上用光纤传输光信号,在前段需完成电—光转换,进入用户区后要完成光
您可能关注的文档
- 学生公寓管理系统的分析和设计.doc
- 学生社团管理系统说明书.doc
- 学生选课系统.doc
- 窨井盖铣刨机.doc
- 学生信息数据库管理系统.doc
- 烟囱滑模施工方案(附平台井架图及详细计算过程).doc
- 烟雾浓度检测报警系统设计论文.doc
- 盐城电信客户关系管理论文.doc
- 眼科病床的合理安排数学建模竞赛论文.doc
- 掩护式液压支架设计.doc
- 某某单位2024年党建工作总结及2025年工作计划.doc
- 某某市发改委关于2024年度落实党风廉政建设工作责任制情况的报告.doc
- 某某局2024年全面从严治党和党风廉政建设工作总结.doc
- 某某区财政局2024年法治政府建设总结及2025年工作谋划.doc
- 2024年党管武装工作述职报告2篇.doc
- 2024年度国企党委书记抓基层党建工作述职报告3篇.doc
- 公司党委书记2024年述职述廉报告.docx
- 2024年度乡镇党委领导班子民主生活会(四个带头)对照检查材料.doc
- 市医疗保障局关于2024年法治政府建设工作情况的报告.docx
- 市民政局党组2024年巡察整改工作情况报告.docx
文档评论(0)