电缆信道

首先，本文阐述了测井电缆信道传输中码间干扰的产生，然后介绍了电缆的特性并给出了电缆信道模型，最后对电缆信道传输进行了分析。

First of all , it elaborates the reasons of ISI in the cable transmission . Then , introduces characteristics and model of the cable channels .

光纤信道具有比传统电缆信道更高的信号传输速率和更大的带宽，当采用光纤调制解调器进行电光信号转换时，可以使用具有较多冗余位的编码方式来保证信号传输的准确性和可靠性。

Fiber channel possesses wider bandwidth and higher signal transmission speed than traditional cable channel , which permits the encoder adding more redundant bits in encoding process when the electric signals convert into optical signals by an optic modem to guarantee the reliability and veracity of the communication system .

接着提出了一个用户业务模型假设，讨论了同轴电缆网信道的动态分配问题。

One subscriber traffic model and dynamic channel allocation policy in coaxial networks is discussed .

其次是信道分析，作为数据发送主要的传输信道：印刷电路板和同轴电缆建立信道模型，为信道预均衡提供了理论基础；

Secondly , signal channel analysis concentrates on the dominant channel materials of data communication , which are PCB and coaxial cable . In this thesis , the channel model and pre-emphasis theory has been built up .

但HFC网络中同轴电缆网络上行信道中存在的噪声漏斗效应限制了上行信道调制技术的选择。

But the existence of noise funneling in the return path of cable network in HFC system restricts the selection of modulation techniques for the return path .

同轴电缆网络上行信道噪声漏斗效应及其对调制技术的影响分析

Noise funneling and its influence on modulation scheme in the return path of cable network

仿真结果表明，DWMT调制是一项能有效实用于光纤-电缆调制解调器系统上行信道的技术。

The simulation and analysis indicate that the DWMT modulation adapts to the upstream channel in optical-cable modem system .

简要介绍了DMT（离散多音频）技术，在此基础上详细阐述了用于HFC（光纤混合同轴电缆）网络上行信道数据传输的SDMT（同步多载波调制）系统的原理，分析了其性能。

This article gives a brief introduction of the technology of DMT , and particularly illustrates how to use SDMT theory to transmit data in HFC network up channel , then makes an analysis of SDMT system 's performance .

论文介绍一种新式的工控网设计方案：主站与从站间采用BITBUS总线为传输媒介，各从站与远程站采用电力载波和同轴电缆互为备份信道。

This article introduces a new plan of industrial control network : selecting BITBUS as transmission media between master station and slave stations , both slave stations and remote stations connected by power carrier and coaxial cable as back-up signal channel .

HiNOC是利用有线电视同轴电缆的带外信道组建高速和高质量的多业务宽带接入网的一种新型接入技术。

High performance Network Over Coax ( HiNOC ) is a new access technology of broadband access network using the out-of-band channel of Community Antenna TV ( CATV ) coaxial cable to provide users high-speed and high-quality multi-service .

交互式有线电视同轴电缆分配网上行信道非线性失真分析

The Analysis of Nonlinear Distortion in the Return Path of Coaxial Distribution Network in Interactive CATV

本文主要针对我们提出的数字电视传输方案电缆模式下的信道接收芯片的设计和实现进行了研究。

This paper mainly focuses on the research and realization of the channel receiving chip according with the DTV transmission draft in cable which we proposed .

本文指出在交互式有线电视同轴电缆分配网上行信道中由于放大器的存在会引起非线性失真，讨论用放大器可测指标来表征的放大器非线性失真模型。

In this paper , the nonlinear distortion caused by amplifiers in the up link of coaxial distribution network in interactive CATV is pointed out , and the amplifier nonlinear distortion model expressed by the measurable amplifier parameters is then discussed .

另外，他还参与数字电缆和卫星电视接收机的射频部分研发并领导电缆电视上行信道工程。

In addition , he was also engaged in the RF front-end development of cable and satellite for digital TV and led the project return channel for cable .

文章介绍了一个典型的由8段电力电缆通过线路开关连接成的环网结构，并对其供电电缆屏蔽层信道的传输特性（阻抗、噪声、传输特性）进行了全面的测试。

This paper takes a typical cable shielding layer of ring network structure connected with eight segments of electric cables by switches as an example , and its transmission characteristics ( attenuation , impedance and noise ) are measured .