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有线电视光纤同轴混合网上行通道噪声特性
引用本文:罗钦骑,容太平,黄铁侠. 有线电视光纤同轴混合网上行通道噪声特性[J]. 华中科技大学学报(自然科学版), 1997, 0(10)
作者姓名:罗钦骑  容太平  黄铁侠
作者单位:华中理工大学电子与信息工程系
摘    要:系统地分析了HFC结构噪声和入侵噪声等发生的原因和特点,提出了一些解决的措施,如:做好网络的屏蔽和维护,考虑灵活的接入协议和传输技术,采用窄带FDMA、滤波、预箝位及前向纠错技术等.

关 键 词:HFC;上行通道;噪声漏斗;入侵噪声;屏蔽

Noise Characteristic of Upstream Channel of HFC Network and the Countermeasures
Luo Qinqi Rong Taiping Huang Tiexia. Noise Characteristic of Upstream Channel of HFC Network and the Countermeasures[J]. JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE, 1997, 0(10)
Authors:Luo Qinqi Rong Taiping Huang Tiexia
Affiliation:Luo Qinqi Rong Taiping Huang Tiexia
Abstract:HFC (Hybrid Fiber/Coax) network can be used for bi directional communication. While providing interactive services over HFC network, one of the most important performance indexes is BER. The noise upstream channel of HFC network will determine the overall reliability of the system data link. The source and characteristics of the structural, ingressive and other types of noise are analyzed, and some countermeasures are suggested.
Keywords:HFC  upstream channel  noise funnel  ingressive noise  screen  
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