传输介质

然而，高速信号技术相比一般的数字信号也存在着传输介质频率相关损耗引起的码间干扰ISI，影响信号质量和误码率的问题，从而在很大程度上限制了数据传输频率和传输距离。

However the frequency dependent loss of transmission media will cause ISI , which affects the quality of the transmission data and BER , thus limiting the data rate and the transmission length .

试验结果表明，以光纤替代屏蔽双绞线作为传输介质的1773光纤数据总线能够使1553B总线系统具有更强的性能和更高的可靠性。

The experimental results show that the 1773 data bus with fiber-optic as the transmission media instead of twisted shielded pair cable could provide higher performance and reliability .

高速电力线通信（Powerlinecommunication，PLC）是指利用低压电力线作为传输介质，实现高速的数据传输及语音服务。

High-speed power line communication ( PLC ) refers to the use of low-voltage power line as a transmission medium to transport high-speed data and voice services .

微波光纤混合传输介质组成的SDH环网

The hybrid medium SDH loop with microwave and fiber equipment

射频识别技术（RadioFrequencyIdentification）是一项非接触式的数据自动采集技术，它以空间电磁波作为传输介质从而达到双向通信、自动识别的目的。

Radio Frequency Identification ( RFID ) is a non-contact , automatic data collection technology , which employs electromagnetic waves as the transmission medium to achieve two-way transmission and automatic identification .

MVB传输介质信道特性的研究。

Research of channel characteristics of MVB transmission medium .

随着Internet的高速发展，目前企业的商业活动越来越依赖于Internet，但是Internet作为一个公共的传输介质，无法满足商业信息的机密性要求。

With the rapid development of Internet , the current business activities of enterprises increasingly rely on Internet , but the Internet as a public transmission medium can not meet the requirements of the confidentiality of business information .

实现了以POF为传输介质的语音通话，并收到了非常好的效果。

At last , phonic communication with POF as its media was realized and good effect was achieved .

PCF以其独特的结构和优异的性能，为光纤通信等高新技术领域提供了一种新型的光传输介质和光器件。

With the unique structure and excellent properties , PCF has provided a novel kind of optical transmitted medium and optical device .

DVB-T数字视频广播是利用地面传输介质进行MPEG-2数字电视广播的传输标准。

As the transmission standard of MPEG-2 digital video broadcasting , Digital Video Broadcasting-Terrestrial ( DVB-T ) is used for terrestrial media transmission .

同轴电缆接入网是把同轴电缆作为传输介质的接入网，是基于有线电视网（CATV）的一种接入技术。

Coaxial cable access network is the coaxial cable as a transmission medium access network , and is a access technologies based on the cable television networks ( CATV ) .

无线局域网的媒体访问控制协议（MAC）是无线局域网中终端设备物理层与逻辑链路层的接口，其主要功能是提供对传输介质访问的有效控制。

MAC protocol for WLAN is the essential part in WLAN devices as the interface between PHY layer and LLC layer , and its main function is to provide efficient control to the access of media .

主、从机之间传输介质为双绞线，按RS-485串行总线标准及接口技术实现信息交换。

The transfer medium between the host and slave processors is twisted-pair wire , and the information exchange is accomplished according to the RS-485 serial bus standard and the interface technology .

为了减小传输介质介电常数、磁导率参数对管道机器人定位的影响，提出了N次K-NN分类算法。

In order to reduce the effect of dielectric coefficient and magnetic inductive capacity on pipeline robot 's localization , an N order K nearest neighbor ( K-NN ) electromagnetic wave localization algorithm is presented .

TCN传输介质-双绞线采用四个性能指标进行评价：衰减、近端串扰、阻抗特性和时延。

Aiming at evaluating the performance of the transmission media-twisted pairs used for TCN network , including attenuation , near-end crosstalk , impedance and delay .

本文探讨一种以最广泛存在的220V低压配电网作为传输介质，能够传输图像（视频）的新方法。

This paper probes into a new method to transmit images by using the most widely existent 220V low-voltage power distribution networks as the transmission medium .

介绍CEBus协议栈结构和标准，分析CEBus在电力线传输介质上实现所采用的技术及应用。

This article discusses the protocol stack architecture and standards of Consumer Electronic Bus ( CEBus ), analyses the technology and application used by CEBus of Power Line medium .

EPON结构的一个重要特性是在多用户间共享传输介质，动态带宽分配（DBA）机制提供了上行信道的统计复用，以达到高效和公平的带宽分配，这是本文研究的核心内容。

An important feature of EPON architecture is to share the transmission media between multiple subscribers . Dynamic bandwidth allocation ( DBA ) schemes provide statistical multiplexing in the upstream channel , allowing bandwidth to be effectively and fairly allocated .

本文要解决的问题是如何利用低压电力线作为PAS的传输介质，研制基于低压配电网传输的PAS，克服传统PAS在应用中存在的缺点。

The objective of this paper is to utilize low-voltage power line as the transmission medium of PAS and develop a PAS based on transmission over low-voltage power distribution networks , in order to resolve the defects existing in conventional PAS .

针对共享式以太网的介质访问方法以及该方法的弊病，设计了一层基于RTCC协议的网络通信中间件消除传输介质访问冲突，达到实时化改造的目的。

In order to overcome in collision of transport media access , a network middleware based on RTCC protocol should be built up , through which real-time communication can be achieved .

系统的传感器采用光纤电压传感器，该传感器是利用具有Pockels效应的BGO晶体（Bi4Ge3O12）作为传感头来感受电压变化，光纤作为光信号的传输介质的一种新型电压测量装置。

In this system , we monitor over-voltage by optical voltage sensor . Optical voltage sensor is a new kind of voltage measuring appliance , which measure voltage by crystal electro optic effect ( Pockels effect ) and transmit data through optical fiber .

结合城域网最新特点，探讨了以光缆为主要传输介质的管道计算方法，并对其应用作简单介绍。

This paper discusses the calculation method of the optical cable .

数据业务中，大部分的传输介质是市话电缆。

Transmission medium of data business is electric cable in city .

大气传输介质引起的激光测高仪回波能量衰减分析

Analysis of laser altimeter echo energy attenuation in atmosphere transfer medium

基于不同传输介质的TCP/IP网络组网技术

TCP / IP Network Netted Technique Based on Different Transmission Medium

本部分主要介绍以太网的传输介质。

This part mainly introduces the Trans-mission media of Ethernet .

传输介质引起的多基地雷达的系统误差修正

Correction of System Error Caused by Transmission Medium in Multi-static Radar System

浅谈网络布线传输介质

NETWORK Networking Transmission Medium of Premises Distribution System

什么是收集传输介质的意思？

What is meant by network transmission media ?

在无线传输介质里，提高无线信道的利用率能有效的提高系统的性能。

Improving the utilization of wireless channel can effectively improve the performance of the system .