通信工程 专业英语翻译
通信工程常用专业英语简写中英文翻译
通信工程常用专业英语简写中英文翻译3GPP 3rd Generation Partnership Project 第三代合作伙伴计划1x RTT cdma2000 1x Radio Transmission Technology cdma2000 第一代无线接入技术ACK Acknowledge 确认ACLR Adjacent Channel Leakage power Radio 邻信道泄露功率比ACS Adjacent Channel Selectivity 邻信道选择性AMC Adaptive Modulation and Codeing自适应编码调制A-MPR Additional Maximum Power Reduction 额外最大功率回退AoA Angle of Arrival 到达角AoD Angle of Departure 离开角ARQ Automatic Repeat request自动重传请求AS Angel Spread 角度扩展AWGN Additive White Gaussian Noise 加性高斯白噪声B3G Beyond 3rd Generation 后三代BCCH Broadcast Control Channel 广播控制信道BCH Broadcast Channel 广播信道BD Block Diagonalization块状对角化BER Bit Error Rate 误比特率BLER Block Error Rate误块率BM-SC Broadcast-Multicast Service Centre 广播/多播业务中心BSR Buffer Status Reports 缓存状态报告CA Carrier Aggregation 载波聚合CBRM Circular Buffer Rate Matching 循环缓存速率匹配CC Component Carrier 成员载波CC Chase Combine Chase聚合CCCH Common Control Channel 公共控制信道CCCH Common Control Channel 公共控制信道CCE Control Channel Element 控制信道单元CCO Coverage and Capacity Optimization 容量与覆盖优化CCO Cell Change Order 小区改变命令CCSA China Communication Standards Association 中国通信标准化协会CDD Cyclic Delay Diversity 循环延迟分集CDMA Code Division Multiple Access 码分多址接入cdma2000 Code Division Multiple Access 2000码分多址2000接入系统CFI Control format Indicator 控制格式指示CGI Cell Global Identifier 全球小区标识CoMP Coordinated Multi-Point transmission 协调多点传输CP Cylic Prefix 循环前缀CPM Conference Preparing Meeting 大会准备会议CQI Channel Quality Indicator 信道质量指示CRC Channel Redundancy Check 信道冗余校验B-RNTI Cell-Radio Network Temporary Identifier 小区无线网络临时标识CRS Common Reference Signal 公共参考信号CS Fallback Circuit Switching fallback 电路交换回退CS/BF Coordinated Scheduling/Beam-Forming 协调调度/波束赋形CSG Closed Subscriber Group 闭合用户组CSI Channel Status Information 信道状态信息CW Continuous Wave 连续波DAI Downlink Assignment Index 下行分配序号DCCH Dedicated Control Channel 专用控制信道DCI Downlink Control Information 下行控制信息DECT Digital Enhanced Cordless Telecommunications 数字增强无绳通信DL DownLink下行DL-SCH Downlink Shared Channel 下行共享信道DRB Date Radio Bearer 数据无线承载DRX Discontinuous Reception 非连续接受DS Delay Spread 时延扩展DTCH Dedicated Traffic Channel 专用业务信道DTX Discontinuous Transmission 非连续发送DwPTS Downlink Pilot Time Slot 下行导频时隙E3G Enhancement of 3rd Generation 三代增强EAP-AKA Extensible Authentication Protocol-Authentication and Key Agreement 可扩展认证协议-认证密码协商EARFCN E-UTRA Absolute Radio Frequency Channel Number E-UTRA绝对无线频率信道编号ECGI E-UTRAN Cell Global Identifier E-UTRAN全球小区标识ECM-IDLE EPS Connection Management-IDLE EPS连接管理空闲GMSK Gaussian Minimum Shift Keying 高斯最小频移键控EESM Exponential Effective SIR Mapping 指数有效信噪比映射eNode B evolved Node B 演进型节点BEPC Evolved Packet Core 演进型分组核心网EPS Evolved Packet System 演进形分组系统E-RAB E-UTRAN Radio Access Bearer 无线接入承载E-UTRAN Evolved Universal Terrestrial Radio Access Network 演进型通用无线接入网EVM Error Vector Magnitude 误差适量FDD Frequency Division Duplex 频分双工FDMA Frequency Division Multiple Access 频分复用FEC Forward Error Correction 前向纠错GBN Go-Back-N 回退N部GERAN GSM EDGE Radio Access Network GSM EDGE无线接入网GP Guard Period 保护间隔GPRS General Packet Radio System 通用分组无线业务GRE Generic Routing Encapsulation protocol 通用路由封装协议GSM Global System for Mobile Communications 全球移动通信系统GT Guard Time 保护时间GTP GPRS Tunneling Protocol GPRS隧道协议GTP-U GTP-User plane GPRS隧道协议-用户平面HARQ Hybrid ARQ 混合自动重传请求HE Home Environment 归属环境HeMS Home eNode B Management System 家庭基站管理系统HeNB Home eNode B 家庭基站HeNB GW Home eNode B Gateway家庭基站网关HFN Hyper Frame Number 超帧号HI HARQ Indicator HARQ指示HPRD (cdma2000)High Rate Packet Data cdma2000高速分组数据系统HSDPA High Speed Downlink Packet Access 高速下行分组接入HSPA+ High Speed Packet Access+ 增强型高速分组接入HUE Home User Equipment 家庭基站用户设备ICI Inter-Carrier Interference 载波间干扰ICI Inter-Cell Interference 小区间干扰ICIC Inter-Cell Interference Coordination 小区间干扰协调IE Information Element 信息单元IEC International Electrotechnical Commission 国际电工委员会IEEE Institute of Electrical and Electronics Engineers 电气与电子工程师协会IMEI International Mobile Equipment Identify 国际移动设备标识IMS IP Multimedia Subsystem IP多媒体子系统IMSI International Mobile Subscriber Identify 国际移动用户标识IMT International Mobile Telecommunication 国际移动通信IMT-2000 International Mobile Telecommunication 2000国际移动通信2000 IMT-Advanced International Mobile Telecommunication Advanced先进国际移动通信IoT Interference over Thermal 干扰热噪声抬升IP Interference Protocol 因特网协议IPR Intellectual Property Rights 知识产权IR Incremental Redundancy 增量冗余ISI Inter-Symbol Interference 符号间干扰ISO International Organization for Standardization 国际标准化组织ITU International Telecommunication Union 国际电信联盟ITU-D ITU Telecommunication Development Sector ITU无线电发展部门ITU-R ITU Radio Communication Sector ITU无线电通信部门ITU-T ITU Telecommunication S tandards Sector ITU无线电标准化部门JP Joint Processing 联合处理JP-CoMPJoint Processing CoMP联合处理多点协作传输L1/2/3 Layer 1/2/3 层1/2/3LN Log-normal 对数正态LoCH Logical Channel 逻辑信道LoS Line of Sight 视线距离LTE Long Time Evolution 长期演进LTE-A Long Time Evolution Advanced高级长期演进M3UA SS7 MTP3 User Adaptation Layer 七号信令系统MTP3用户适配层MAC Medium Access Control 媒体接入控制MAP Maximum A Posteriori Probability 最大后验概率MBMS Multimedia Broadcast Multicast Service 多媒体广播多播业务MBMS GW MBMS Gateway多媒体广播多播业务网关MBMSFN MBMS Single Frequency Network MBMS单频网MCCH Multicast Control Channel 多播控制信道MCE Multi-cell/multicast Coordination Entity 多小区/多播协调实体MCH Multicast Channel 多播信道MCS Modulation and Coding Scheme 调制编码方式MeNB Macro eNode B 宏基站MFD Maximum Free Distance 最大自由距离MIB Master Information Block 主信息快MI-ESM Mutual Information-Effective SIR Mapping 互信息有效信噪比映射MIMO Multiple Input Multiple Output 多输入多输出ML Maximum-Likelihood 最大似然MLD Most Likelihood Detection 最大似然解调MME Mobility Management Entity 移动性管理实体MMSE Minimum Mean Square Error 最小均方误差MPR Maximum Power Reduction 最大功率回退MSC Mobile Switching Centre 移动交换中心MTCH Multicast Traffic Channel 多播业务信道MTP3 Message Transfer Part Level 3 第3级消息传递部分MUE Macro UE 宏基站UEMU-MIMO Multiple User MIMO 多用户MIMONACC Network Assisted Cell Change 网络辅助小区改变NACK Negative Acknowledgement 否定确认NAS Non-Access Stratum 非接入层NGN Next Generation Network 下一代网络NLoS Non Line of Sight 非接入视线NSC NonSystematic Convolutional Codes 非系统卷积码O&M Operation and Maintenance 操作维护ODS Optimum Distance Spectrum 最优距离谱OFDM Orthogonal Frequency Division Multiplexing 正交频分复用OOB Out Of Band 带外OOK On-Off Key 开关键控PBCH Physical Broadcast Channel 物理广播信道PCCC Parallel Concatenated Convolutional Codes并行级联卷积码PCCH Paging Control Channel 寻呼控制信道PCFICH Physical Control Format Indicator Channel 物理控制格式指示信道PCH Paging Channel 寻呼信道PCI Physical Cell Identifier 物理小区标识PDC Personal Digital Cellular 独立的数字移动电话PDCCH Physical Downlink Control Channel 物理下行控制信道PDCP Packet Data Convergence Protocol 分组数据汇聚协议PDH Pseudo-synchronous Digital Hierarchy 准同步数字序列PDN Packet Data Network 分组数据网PDP Packet Data Protocol 分组数据协议PDSCH Packet Downlink Shared Channel 分组下行共享信道PDU Protocol Data Unit 协议数据单元PF Proportional-Fair 正比公平PHICH Physical Hybrid-ARQ Indicator Channel 物理HARQ指示信道PHY Physical Layer 物理层PLMN Public Land Mobile Network 公共陆地移动网PMCH Physical Multicast Channel 物理多播信道PMI Pre-coding Matrix Indicator 预编码矩阵指示PRACH Physical Random Access Channel 物理随机接入信道PRB Physical Resource Block 物理资源块PRS Positioning Reference Signals 定位参考符号PSS Primary Synchronized Signal 主同步信号PUCCH Physical Uplink Control Channel 物理上行同步信号QAM Quadrature Amplitude Modulation 正交振幅调制QoS Quality of Service 服务质量QoE Quality of Experence体验质量QPP Quadratic Permutation Polynomials 二次置换多项式QPSK Quadrature Phase Shift Keying 正交移相键控RA07 Radio Access in 2007 2007年无线电组委会RAB Radio Access Bearer 无线接入承载RACH Random Access Channel 无线接入信道RAN Radio Access Network 无线接入网RAT Radio Access Technology 无线接入技术RAU Routing Area Update 路由区更新RB Resource Block 资源块RBG Resource Block Group资源块组RBG Resource Bearer Group 无线承载组RBI Received Bit Information 接受比特信息RBIR Received Bit Information Rate接受比特信息速率RE Resource Element 资源单元REG Resource Element Group资源单组RIM RAN Information Management RAN 信息管理RIT Radio Interface Technology 无线接口技术RLC Radio Link Control 无线链路控制RM Reed-Muller 瑞德-穆勒RMS Root Mean Square（value）均方根RN Relay Node 中继节点RNC Radio Network Controller 无线网络控制器RNL Radio Network Layer 无线网络层RNTI Radio Network Temporary Identifier 无线网络临时标识ROHC Robust Header Compression 鲁棒性头压缩RPF Repetition Factor 重复因子RRC Radio Network Control 无线资源控制RRC Root Raised Cosine(for filter) 根升余弦RRM Radio Resource Management 无线资源管理RS Reference Signal 参考信号RSC Recursive Systematic Convolutional Codes递归系统卷积码RSRP Reference Signal Received Power 参考信号接收功率RSTD Reference Signal Time Difference 参考信号时间偏差RTT Round Trip Time 往返时间RV Redundancy Version 冗余版本S1AP S1 Application Protocol S1接口应用协议S1-MME S1 for the control plane 控制平面S1接口S1-U S1 for the user plane 用户平面S1接口SAE System Architecture Evolution 系统架构演进SAW Stop And Wait 停等SCCP Signaling Connection Control Part 信令连接控制部分SC-FDMA Single Carrier FDMA 单载波FDMASCM Spatial Channel Model 空分信道模型SCME Spatial Channel Model Extension空分信道模型扩展SC-OFDM Single Carrier OFDM 单载波OFDMSCTP Stream Control Transmission Protocol 流控传输协议SDH Synchronous Digital Hierarchy 同步数字系列SDMA Spatial Division Multiple Access 空分多址SDU Service Data Unit 业务数据单元SeGW Security Gateway 安全网关SEM Spectrum Emission Mask 频谱辐设模板S-GW Serving Gateway 服务网关SI System Information 系统信息SIB System Information Block 系统信息块SIC Successive Information Cancellation串行干扰消除SINR Signal-to-Interference plus Noise Ratio 信干噪比SIR Signal-to-Interference plus Noise 信干比SISO Soft-Input Soft-Output 软输入软输出SISO Single Input Single Output 单输入单输出SN Sequence Number 序列号SON Self-Organizing Network 自组织网SP Switching Points 转换点SPS Semi-Persistent Scheduling半持续调度SPS-CRNTI Semi-Persistent Scheduling-CRNTI半持续调度C-RNTI SR Scheduling Request 调度请求SRB Signaling Radio Bearer 心灵无线承载SRI Scheduling Request Indicator 调度请求指示SRITs Set of Radio Interface Technologies 无线接口技术集合SRS Sounding Reference Symbol 探测参考符号SRVCC Single Radio V oice Call Continuity 单一无线语音呼叫连续性SSS Secondary Synchronization Signal 辅同步信号S-TMSI SAE Temporary Mobile Subscriber Identity SAE临时移动签约用户标识SU-MIMO Single User MIMO 单用户MIMOTA Timing Advance时间提前量TA Tracking Area 跟踪区域TAC Tracking Area Code 跟踪区域码TAI Tracking Area Identity跟踪区域标识TDD Time Division Duplex 时分双工TD-LTE TD-SCDMA Long Time Evolution TD-SCDMA长期演进TDM Time Division Multiplex 时分复用TDMA Time Division Multiple Access 时分多趾TD-SCDMA Time Division Synchronous CDMA 时分同步CDMATEID Tunnel Endpoint Identifier 隧道端点标识TNL Transport Network Layer 传输网络层TPMI Transmitted Pre-coding Matrix Indicator 传输预编码指示TTI Transport Time Interval 传输时间间隔UCI Uplink Control Information 上行控制信息UDP User Datagram Protocol 用户数据协议UE User Equipment 用户设备UL Uplink 上行链路UL-SCH Uplink Shared Channel 上行共享信道UMTS Universal Mobile Telecommunication System 通用移动通信系统UpPTS Uplink Pilot Time Slot 上行导频时隙VLR Visitor Location Register 拜访位置寄存器V oIP V oice Over Internet Protocol 基于互联网协议的语音VRB Virtual Resource Block 虚物理资源块WCDMA Wideband CDMA 宽带CDMAWiMAX Worldwide interoperability for Microwave Access 全球微波接入互操作性WP5D Working Party 5D 5D工作组WRC07 World Radio Conference in 2007 2007年世界无线电大会X2AP X2 Application Protocol X2接口应用协议XPD Cross Polarization Distinguish 交叉极化分量ZF Zero Forcing 迫零3GPP的6个组织伙伴(OP)欧洲ETSI European Telecommunication Standards Institute 欧洲电信标准协会美国TIA Telecommunication Industry Association 美国电信工业协会日本TTC Telecommunication Technology Committee 日本电信技术委员会日本ARIB Association of Radio Industries and Businesses 日本电波产业协会韩国TTA Telecommunication TechnologyAssociation 韩国电信技术协会中国CCSA China Communication Standards Association 中国通信标准化协会。
通信工程专业英语
一、汉译英1、时分多址：TDMA （Time Division Multiple Address/ Time Division Multiple Access）2、通用无线分组业务：GPRSGeneral Packet Radio Service3、国际电报电话咨询委员会：CCITT4、同步数字体系：SDH Synchronous Digital Hierarchy （同步数字序列）5、跳频扩频：FHSS frequency hopping spread spectrum6、同步转移模块：STM synchronous transfer module7、综合业务数字网：ISDNIntegrated Services Digital Network8、城域网：MAN Metropolitan Area Network9、传输控制协议/互联网协议：TCP/IPTransmission Control Protocol/Internet Protocol10、服务质量：QOS Quality of Service11、中继线：trunk line12、传输速率：transmission rate13、网络管理：network management14、帧结构：frame structure15、移动手机：Mobile Phone 手机 Handset16、蜂窝交换机：（Cellular switches）（电池开关cell switch）(cell 蜂房)17、天线：Antenna18、微处理器：microprocessor19、国际漫游：International roaming20、短消息：short message21、信噪比：SNR(Signal to Noise Ratio)22、数字通信：Digital communication23、系统容量：system capacity24、蜂窝网：cell network（cellular network）（Honeycomb nets）25、越区切换：Handover26、互联网：internet27、调制解调器：modem28、频谱：spectrum29、鼠标：Mouse30、电子邮件：electronic mail E-mail31、子网：subnet32、软件无线电：software defined radios33、网络资源：network resources 二、英译汉1、mobile communication：移动通信2、Computer user：计算机用户3、Frame format：帧格式4、WLAN：wireless local area network 无线局域网络5、Communication protocol：通信协议6、Transmission quality：传输质量7、Remote terminal：远程终端8、International standard：国际标准9、GSM：全球移动通信系统Global System for Mobile Communications10、CDMA：码分多址Code Division Multiple Access11、ITU：国际电信联盟International Telecommunication Union12、PCM：pulse code modulation 脉冲编码调制13、WDM：波分复用Wavelength Division Multiplex14、FCC：联邦通信委员会Federal communications commission15、PSTN：公用电话交换网Public Switched Telephone Network16、NNI：网络节点借口Network Node Interface17、WWW：万维网World Wide Web18、VOD：视频点播Video-On-Demand19、VLR：访问位置寄存器Visitor Location Register20、MSC：移动交换中心Mobile Switching Centre21、HLR：原籍位置寄存器Home Location Register22、VLSI：超大规模集成电路Very Large Scale Integrated Circuits23、Bluetooth technology：蓝牙技术24、Matched filter：匹配滤波器25、ADSL：非对称数字用户环路Asymmetrical Digital Subscriber Loop非对称数字用户线路(Asymmetric Digital Subscriber Line)26、GPS：全球定位系统Global Position System27、ATM：异步传输模式Asynchronous Transfer Mode三、汉译英1、脉冲编码调制（PCM）依赖于三个独立的操作：抽样、量化和编码。
通信工程专业英语翻译
通信工程专业英语翻译JXTA is a crystallization by Sun company's chief scientist Bill Joy's more than twenty years of brewing."JXTA technology is a platform for Network programming and calculation.To solve the modern distribution calculation especially peer-to-peer (Peer to Peer, P2P) in the calculation of the problem".[1] JXTA research project,which will provide a new framework that make the user more convenient to access to connect on the Internet's personal computer resources, thus further expand Internet 's space. At the same time JXTA is also the Sun's "ONE Internet" strategic continuance, and will take a more positive attitude to compete with the .net strategy of Microsoft and Hailstorm plan .JXTA agreement defines a set of six agreement based on XML, the organization of node into node group, release and found some resources, communication and mutual monitoring provides standardized method.(Endpoint Routing Protocol,ERP) is used for node found routing.To send a message to other nodes, and through the potential firewall and connection.(Rendezvous Protocol,RVP) s used for the nodes in the group to spread information.(Peer Resolver Protocol,PRP) is Used to one or more points to send general inquiries, and receive the response of inquiries.(Peer Discovery Protocol, PDP) is used to release and found advertising resources. (Peer Information Protocol, PIP) used to get other nodes state Information. (Peer Binding Protocol, PBP), can let a node with another node or between more nodes to set up virtual communication channel or pipeline. Compared to the nowadays general communication mode .P2P has many advantages, but it also has a lot of problems waiting to be solved.Firstly, each Peer in P2P is an active participant,in order to make the network performance increase, they need more Peer's participation, so that will result in the network's huge, manage this network will is a complex project; Secondly, P2P agreement compares with traditional client/server agreement it need more "interaction", such as Peer join or exit network,but these factors will cause some negative effect on network performance.JXTA是Sun公司首席科学家Bill Joy二十多年酝酿的结晶。
通信工程专业英语文献翻译
Multi-Code TDMA (MC-TDMA) for Multimedia Satellite Communications用于多媒体卫星通信的MC--TDMA（多码时分多址复用）R. Di Girolamo and T. Le-NgocDepartment ofa Electricl and Computer Engineering - Concordia University1455 de Maisonneuve Blvd. West, Montreal, Quebec, Canada, H3G 1M8 ABSTRACT摘要In this paper, we propose a multiple access scheme basedon a hybrid combination of TDMA and CDMA,在这篇文章中，我们提出一种基于把时分多址复用和码分多址复用集合的多址接入方案。
referred toas multi-code TDMA (MC-TDMA). 称作多码—时分多址复用The underlying TDMAframe structure allows for the transmission of variable bitrate (VBR) information,以TDMA技术为基础的帧结构允许传输可变比特率的信息while the CDMA provides inherentstatistical multiplexing.和CDMA提供固有的统计特性多路复用技术The system is studied for a multimediasatellite environment with long-range dependentdata traffic,and VBR real-time voice and video traffic研究这个系统是为了在远程环境下依赖数据传输和可变比特率的语音和视频传输的多媒体卫星通信系统 . Simulationresults show that with MC-TDMA, the data packetdelay and the probability of real-time packet loss can bemaintained low. 仿真结果表明：采用MC-TDMA的多媒体卫星通信，数据包延时和实时数据丢失的可能性可以保持很低。
通信专业英语课文翻译
通信专业英语课文翻译Image Processing in the Context of a Visual Mode lINTRODUCTIONImage quality is becoming an increasing concern throughout the field of image processing The growing awareness is due in part to the availability of sophisticated digital methods which tend to highlight the need for precision Also there is a eveloping realization that the lack of standards for reading images into and writing images out of digital form can bias the apparent effectivenesosf a process and can make uncertain the comparison of results obtained at different installations Greater awareness and the desire to respond to it are partially frustrated, because subjective distortion measures which work well are difficult to find Partof the difficulty stems from the factthat physical and subjective distortions are necessarily differentThe ideas presented here spring from our reevaluation of the relationship between the structure of images and 1) the problem of quantitative representation, 2) the effect of desired processing and/or unwanted distortion, and 3) the interaction of images with the human observer They provide a framework in which we think about and perform our image processing tasks By adding to our understanding of what is to be measured when dealing with images and by strengthening the bridge between the objective (physical) and the subjective (visual) aspects of many image processing issues, these ideas have clarified the meaning of image quality and thus have ‘enhanced our ability to obtain it [Yeoffer them with the hope that they may aid othersw ealslIn the course of the discussion it is noted that image processors which obey superposition multiplicatively instead of additively, bear an interesting resemblance both operationally and structurally to early portionosf the human visual system Based on this resemblance a visual model is hypothesized, and the results of an experiment which lends some support to and providesa calibration for the model are described This tentative visual model is offered only for its special ability topredict approximate visual processing characteristics In recent years there has beena large amount of quantitative work done by engineers and scientists from many fields in support of a model for human vision While many of these works are not referenced explicitly here, we have attempted to reference papers and texts which doa good job of collectingthese references in a small number of places while providing a unifying interpretationTHER EPRESENTATION oF IMAGESA key question in the transmission, storage, or processing of any information is that of representation The reason that the choice of representation is important is that the problems of transmission, storage, and processing can be substantially effected by itIf an ideal physical image is considered as a carrier of information, it follows that nature has already chosen a representation It takes the form of light energy Furthermore, if one takes nature literally when sensing an optical image, one will continue that representation by creating a ignal proportional to the intensity of that light energy Indeed this representation seems likea very natural one, and in fact as already indicated, it is commonluys ed in television and digital image processing翻译图像的质量在整个图像处理领域正在受到越来越多的关注。
通信工程专业英语Unit2：DigitalCommunicationSystem.ppt
First, if digital rather than analog signals are transmitted, then the system remains nearly immune to noise as long as it is below a threshold level. rather than ：而不是 immune to ：可避免的,不受影响的 as long as ：只要, 在...的时候 threshold level：门限电平 第一,如果传输的是数字信号而不是模拟信号,则只要噪声电 平低于门限电平,系统就几乎不受影响。
Specialized English for Communication Engineering
专业英语的翻译
English
句子结构上有差异 词汇上很少对等
Chinese
直译：基本上保硬留译原文的表达形式死及译内容，不做大的改 动，同时译出的文字又明白易懂； 意译：在正确理解原意的基胡础译上，重新遣词造句，把原 文的意思用通顺的汉语表达出来。
itezadnu Q
13 12 11 10 9 8 7 6 5 4 3 2 1
0111
1 f
S
1100
1001 0101
Signal
1000
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Sampling intervals
Specialized English for Communication Engineering
The miniature receiving antenna was developed as an alternative to that larger one.
通信工程专业英语课文翻译
通信工程专业英语课文翻译Technology of Modern CommunicationText A: BluetoothBluetooth wireless technology is a short-range communications technology intended to replace the cables connecting portable（轻便的）and fixed devices while maintaining high levels of security.The key features of Bluetooth technology are robustness（稳健）, low power, and low cost .The Bluetooth specification defines a uniform structure for a wide range of devices to connect and communicate with each other.蓝牙无线技术是一种小范围无线通信技术，旨在保持高安全级的基础上，在便携式设备与固定设备之间实现无线连接。
蓝牙技术的主要特点是稳健，低功耗和低成本。
蓝牙规范定义了一个统一的结构，适用范围广的设备连接并相互沟通。
Bluetooth technology has achieved global acceptance such that any Bluetooth enabledevice, almost everywhere in the world, can connect to other Bluetooth enabled devices in proximity. Bluetooth enabled electronic devices connect and communicate wirelessly through short-range, ad hoc（特别）networks known as piconets Each device can simultaneously communicate with up to seven other devices within a single piconet. Each device can also belong to several piconets simultaneously. Piconets are established dynamically and automatically as Bluetooth enabled devices enter and leave radio proximity.蓝牙技术已取得全球认可，使得任何支持蓝牙的设备，几乎在世界各地，可以连接到其他支持蓝牙的邻近装置。
通信工程专业英语
通信工程专业英语Revised at 16:25 am on June 10, 2021I hope tomorrow will definitely be better一、汉译英1、时分多址：TDMA Time Division Multiple Address/ Time Division Multiple Access2、通用无线分组业务：GPRSGeneral Packet Radio Service3、国际电报电话咨询委员会：CCITT4、同步数字体系：SDH Synchronous Digital Hierarchy 同步数字序列5、跳频扩频：FHSS frequency hopping spread spectrum6、同步转移模块：STM synchronous transfer module7、综合业务数字网：ISDNIntegrated Services Digital Network 8、城域网：MAN Metropolitan Area Network9、传输控制协议/互联网协议：TCP/IP Transmission ControlProtocol/Internet Protocol10、服务质量：QOS Quality of Service11、中继线：trunk line12、传输速率：transmission rate13、网络管理：network management14、帧结构：frame structure15、移动手机：Mobile Phone 手机Handset16、蜂窝交换机：Cellular switches 电池开关cell switchcell 蜂房17、天线：Antenna18、微处理器：microprocessor19、国际漫游：International roaming20、短消息：short message21、信噪比：SNRSignal to Noise Ratio22、数字通信：Digital communication23、系统容量：system capacity24、蜂窝网：cell networkcellular network Honeycomb nets 25、越区切换：Handover26、互联网：internet27、调制解调器：modem28、频谱：spectrum29、鼠标：Mouse30、电子邮件：electronic mail E-mail31、子网：subnet32、软件无线电：software defined radios33、网络资源：network resources二、英译汉1、mobile communication：移动通信2、Computer user：计算机用户3、Frame format：帧格式4、WLAN：wireless local area network 无线局域网络5、Communication protocol：通信协议6、Transmission quality：传输质量7、Remote terminal：远程终端8、International standard：国际标准9、GSM：全球移动通信系统Global System for Mobile Communications10、CDMA：码分多址Code Division Multiple Access11、ITU：国际电信联盟International Telecommunication Union12、PCM：pulse code modulation 脉冲编码调制13、WDM：波分复用Wavelength Division Multiplex14、FCC：联邦通信委员会Federal communications commission 15、PSTN：公用电话交换网Public Switched Telephone Network 16、NNI：网络节点借口Network Node Interface17、：万维网World Wide Web18、VOD：视频点播Video-On-Demand19、VLR：访问位置寄存器Visitor Location Register20、MSC：移动交换中心Mobile Switching Centre21、HLR：原籍位置寄存器Home Location Register22、VLSI：超大规模集成电路Very Large Scale Integrated Circuits23、Bluetooth technology：蓝牙技术24、Matched filter：匹配滤波器25、ADSL：非对称数字用户环路Asymmetrical Digital Subscriber Loop 非对称数字用户线路Asymmetric Digital Subscriber Line26、GPS：全球定位系统Global Position System27、ATM：异步传输模式Asynchronous Transfer Mode三、汉译英1、脉冲编码调制PCM依赖于三个独立的操作：抽样、量化和编码;PCM is dependent on three separate operations: sampling, quantizing and coding;2、像TCP和IP那样的协议已经被设计出来,当然,它们还需要被更新和维持;Protocols like TCP and IP have already been designed,of course,but they need to beupdated and maintained;3、码分多址是一种前景广阔的宽带数字工作系统;One form of digital wide band operation which has good future potential is CDMA;4、互联网是可提供很多网络资源的最大的信息库;The internet is the largest repository of information which can provide very largenetwork resources.5、开发蜂窝式移动电话系统并将其在许多城市中推广应用的原因之一是传统的移动电话系统存在容量有限、服务性能差、频谱利用率低的缺点;One of many reasons for developing a cellular mobile telephone system and deploying it in many cities is the operational limitations of conventional mobile telephone system;limited servile capability,poor service performance,and inefficient frequency spectrum utilization.6、来自发端借口不见的定时新号被加到数据调制解调器上,以使计算机与数传机同步;在接收端,从数据流中取出同步脉冲式计算机同步;Timing signals from the interface assembly at the transmitter are applied to the data modem to synchronize the computer and the data set. At the receivers synchronizationpulses are derived from the data stream to synchronize the computer.7、我们正处于通信网络革命的开始,越来越大的容量需求,各种各样的应用,以及服务质量正在对光网络提出巨大的需求;We are at the beginning of a revolution in communications networks, where increasing capacity, variety of applications, and quality of service are placing enormous demands on the optical network.8、目前在欧洲正在开发第三代移动通信系统,其目的是要综合第二代系统的所有不同业务并覆盖更广泛的业务话音、数据、视频、多媒体范围,而且还要与固定电话网络的技术发展保持一致和兼容;The third generation mobile communication system currently being developed in Europe, intended to integrate all the different services of the second generation system andcover a much wider range of broadband services Voice、data、video、multimediaconsistent and compatible with technology developments taking place within the fixed telecommunication networks.9、在现代对多媒体的描述中,我们所具有的技术已开始向人类具有的能力迈进；通过使用计算机技术、软件和其他技术,如CD-ROM;不仅能将视频图像和音频综合在一起,而且可以与其他计算机用户进行交互工作;In the modern presentation multimedia we now have the technology that can begin to move towards an ability already held by the human beings in that by using computer, technology, software and other technology, such as CD-ROM not only can we bring together audio and visual images but interactive with other computer users.10、为弥补这些问题,要在基本结构中加入大量的高效中继线;高效中继线用于直接连接有大量的节点间通信业务量的各交换中心;通信量常常是通过网络中可用的最低层次传送的;To compensate for these problems, a large number of high usage trunks augment the basic architecture. High-usage trunks are used for direct connection between switching centers with high volumes of internodes traffic. Traffic is always routed through the lowest available level of the work.11、光纤网络的革命刚刚开始,并正快速向未来的带宽无线、可靠和低费用的在线世界发展;The revolution of optical network is just beginning, and is advancing very swiftly towarda future online world in which bandwidth is essentially unlimited、reliable and low-cost.12、实际设备通常使用8kHz的采样速率,而如果每个样值用8位码的话,则话路是由一个重复速率64kHz的脉冲流来表示;Practical equipments, however, normally use a sampling rate of 8 kHz, and if 8 digits per sample value are used the voice channel becomes represented by a stream of pulses with a repetition rate of 64 kHz.13、是由于SDH设备在这些方面的标准化,才提供了网络运营者所期望的灵活性,从而能低价高效地应付带宽方面的增长并为后十年中出现的新的用户业务作好准备;It is the standardization of these aspects of SDH equipment that will deliver the flexibility required by network operators to cost effectively manage the growth in bandwidth and provisioning of new customer services expected in the net decade.四、英译汉1、The cellular concept is defined by two features, frequency reuse and cell splitting. Frequency reuse comes into play by using radio channels on the same frequency in coverage areas that are far enough apart not to cause co-channel interference. This allows handling of simultaneous calls that exceed the theoretical spectral capacity. Cell splitting is necessary when the traffic demand on a cell has reached the maximum=m and the cell is then divided into a micro-cellular system. The shape of cell in a cellular system is always depicted as a hexagon and the cluster size can be seven, nine or twelve. 蜂窝的概念由两个特点决定,频率复用和小区分割;在相邻覆盖区域足够远的而不至于引起共用信道干扰的,通过使用同一频率的无线信道,频率再利用才起作用;这样可以出来同时出现的呼叫并超出理论频谱容量;当小区的业务需求增到最大时,就要被划分,小区就要被划分成更小的蜂窝系统区域,蜂窝系统的小区形状常被描述成六边形,一群小区数量可以是9个或12个;2、Before you can use the Internet, you must choose a way to move data between the Internet and your PC. This link may be a high-speed data communication circuits, a local area network LAN, a telephone line or a radio channel. Most likely, you will use a Modem attached to your telephone line to talk to the Internet. Naturally, the quality of your Internet connection and service, like many other things in life, is dictated by the amount of money you are willing to spend.Although all these services can well satisfy the needs of the users for information exchange, a definite requirement is needed for the users. Not only should the users know where the resources locate, but also he should know some operating commands concerned.在使用Internet之前,必须使用一种方法在呢的PC机和Internet之间传递数据,这种连接的链路可以是高速数据通道电路,局域网,电话线路或无线信道;最有可能的是,你使用Modem连到电话线上与Internet对话;当然像生活中许多其他事物一样,与Internet连接服务和质量是由你花钱的数量来决定的;虽然这些所有的服务可以很好满足用户交换信息需要,但用户仍旧需要具有特定的先决条件,用户不但要知道信息资源的位置而且要知道一些有关的操作命令;3、Packet switching achieves the benefits discussed so far and offers added features. It provides the full advantage of the dynamic allocation of the bandwidth, even when messages are long. Indeed, with packer switching, many packets of the same message may be in transmission simultaneously over consecutive links of a path from source to destination, thus achieving a ‘pipelining’ effect and reducing considerably the overall transmission delay of the message as compared to message switching. It lends to require smaller storage allocation at the intermediate switches. It also has better error characteristics and leads to more efficient error recovery procedures, as it deals with smaller entities. Needless to say, packer switching presents design problems of its own, such as the need to reorder packets of a given message that may arrive at the destination node out of sequence.分组交换除具有以上讨论的有点之外,还具有一些特点;它提供带宽动态分配的全部优势,甚至当报文很长时依然如此,由于有分组交换,一个报文的多个分组确定可以通过原点到终点通路中多个链路同时传送,因而道道“管道”传送的效应,与报文交换相比,他大大的减少了报文整体传送时延;在中间交换设备中这种方式只需要较小的存储分配区域;分组交换的误码特性较好,由于它只涉及很短的长度,因而导致更高效的纠错方式;当然,分组交换也有自身设计上的麻烦,例如,当报文无序到达目的节点时,需要重新对该报文进行分组排序;4、As more and more systems join the Internet, and as more and more forms of information can be converted to digital form, the amount of stuff available to Internet userscontinues to grow. At some points very soon after the nationwide Internet started to grow, people began to treat the Net as a community, with its own tradition and customs.随着越来越多的系统连接到互联网,越来越多的信息被转化为数字形式,互联网用户可利用的资料持续增长,在不久的将来当国内互联网的规模增加到一定程度时,人们开始把互联网当做社区对待,并且拥有自己的传统和习惯;5、Three components are involved in a basic optical fiber system: the light source, the photo detector, and the optical transmission line. The optical light source generates the optical energy which serves as the information carrier, similar to a radio wave source supplying electromagnetic energy at radio wave wavelengths as the information carrier.The optical photo detector detects the optical energy and converts it into an electrical form. The optical fiber transmission line is the equivalent of copper wires and functionas the conductor of optical energy.基本的光纤系统涉及到3个部分：光源、光检测器和光缆;光源产生的能力作为信息的载体,类似于具有电磁能的无线电波用波长作为信息载体,光检测器检测光能并将其转化为电能的形式,光缆等效于铜线具有传导光能的作用;6、The fixed telephone service is global and the interconnection varies from coaxialcable to optical fiber and satellite. The national standards are different, but with common interfaces and interface conversion, interconnection can take place. For mobilethe problem is far more complex, with the need to roam creating a need for complex networks and system. Thus in mobile the question of standards is far more crucial to success than fixed systems.The GSM system is based on a cellular communications principle which was first proposedas a concept in the 1940s by Bell System engineers in the U.S. The idea came out of the need to increase network capacity and got round the face that broadcast mobile networks, operating in densely populated areas, could be jammed by a very small number of simultaneous calls. The power of the cellular system was that it allowed frequency reuse.全球范围内的固定电话通过同轴电缆、光缆和卫星相连;尽管各国的通信标准不同,但是由于有共同的接口和接口转换设备,互连问题得以解决;对于移动通信存在漫游问题,网络和系统就比较复杂,所以移动通信的标准问题就更关键;1940年有美国贝尔系统工程师提出的蜂窝通信原理是GSM系统的基础,其思路是在人口密集的区域由于一些同时发起的呼叫导致网络拥塞,采用蜂窝系统可以增加系统的容量,蜂窝系统的优点在于频率的重复利用;7、The advantage of SDH are mainly reflected in the following:1Lower network element costs: With a common standard, compatible equipment will be available from many vendors.In a highly competitive market prices will be vary attractive. 2 Better network management: With better network management, operators will be able to mote efficientlyuse the network and provide better service. The concept of TMNTelecommunication Management Networksis under study by CCITT. Some TMN standards defining management system interfaces already Faster provisioning: If new circuits can be software defined to use existing spare bandwidth then provisioning will be mush faster. The only new connection needed will be from the customer’s premises to the nearest network access node.SDH的优点是：1、较低的网络成本：由于具有共同的标准,许多供应商提供的设备可以兼容,激烈的时长竞争可以降低成本,2、更好的网络管理：运营商有能力提供更有效的业务,电信网管标准正在由CCITT指定,定义管理接口的相关标准已经出台;3、快速准备：如果新的电路可被软件来定义,利用现有的空闲频段从用户到最近的网络节点,接入的准备工作将更快;8、If we consider binary transmission, the complete information about a particular message will always be obtained by simply detection the presence or absence of the pulse. By comparison, most other forms of transmission systems convey the message information using the shape, or level of the transmitted signal; parameters that are most easily affected by the noise and attenuation introduced by the transmission path. Consequentlythere is an inherent advantage for overcoming noisy environments by choosing digital transmission.Noise can be introduced into transmission path in many different ways; perhaps via a nearby lightning strike, the parking of a car ignition system, or the thermal low-level noise within the communication equipment itself. It is the relationship of the truesignal to the noise signal, known as the signal-to-noise ratio, which is of most interest to the communication engineer.如果进行二进制传输,通过检测脉冲的有无就可获得报文的全部信息,相比之下,其他传输系统携带信息是通过波形和信号电平,这些参数容量收到噪声和传输信道衰减的影响,因此数字通信具有克服噪声环境的内在优势;噪声可能通过不同的方式进入传输信道,附近的闪电、汽车点火系统或者通信设备内部的热噪声,通信工程师最感兴趣的是信噪比;9、Most of the subscribers on the network ate telephones. The telephone contains a transmitter and receiver for converting back and forth between analog voice and analog electrical signals. With the introduction of the digital data system, some subscribers that transmit digital signals have been incorporated into the network.网络中大多数用户都是电话机;电话机包括一个送话器和一个受话器,用料在模拟话音和模拟电信号之间进行变换;随着数字、数据系统的引入,有些传输数字信号的用户已经并入该网;。
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Fiber to the Home(光纤到家)
光纤到家（FTTH）是一个住宅的通信基础设施，光纤电缆运行所有的方式向用户。
经过多年的期待，各种部署光纤到户是最后出现在美国各地的社区虽然光纤到户是一种技术，它为本地接入市场的竞争动态有趣的影响。
光纤到户网络可以提供的带宽比目前现有的宽带技术的许多倍。
今天似乎每个人都想要的高速数据，可靠的语音服务，高质量的视频。
无论这些服务是由数字用户线（DSL）交付，电缆调制解调器或无线架构是微不足道的，只要服务是快速和可靠的。
FTTH使运营商能够提供多种通信和娱乐服务，包括高速互联网接入，广播，有线电视，直播卫星（DBS）电视，互动的双向视频服务。
此外，一个FTTH解决方案基于波分复用（WDM），允许更多的灵活性和适应性，进一步支持服务。
进一步支持服务的适应性。
在FTTH系统，在前端设备或是连接到公共交换电话网络（PSTN）唱DS-1和连接到ATM、以太网接口。
视频服务从有线电视（CATV）进入系统的头端或来至卫星饲料。
所有这些信号，然后合并成采用WDM技术单光纤传输通过无源光分路器的最终用户。
分路器通常放在离中心局（CO）约3000英尺。
分流比的范围可以从2到32的用户并没有在网络中使用任何活性成分。
然后将信号送到3个000英尺的
家在一个单一的纤维。
一个理想的FTTH系统必须提供的所有服务用户的能力支付，如电路交换电话，视频服务、高速数据广播。
在家里，光信号转换成电信号的光电转换器（OEC）。
OEC把信号分成由最终
用户所需的服务。
理想情况下，其将有标准的用户界面，提供所需的服务不集LLD盒。
这些接口包括电话RJ11插孔，RJ45接口的高速数据，和75欧姆同轴电缆端口的有线电视和卫星直播业务。
有关联的FTTH的几个优点，如下：
这是一个被动网络，因此从有限无活性成分对最终用户这大大减少网络维护的成本和需求以及消除直流电源网络的需要。
它是一个单一的光纤到终端用户，提供各种服务与行业标准的用户界面，包括语音，高速数据，模拟或数字有线电视，星展，ANL视频。
FTTH以当地备用电池和低功率消耗。
FTTH是可靠的，可扩展的，安全的。
FTTH网络是一个夹具的证据体系。
为最终用户提供这些服务的最终解决方案。
双绞线,同轴电缆一种混合光纤／同轴（HFC）网络不健全或未来作为FTTH架构和持续建筑.成本光学设备，光纤到
户是越来越来越可行。
双向的请求，基于视频的服务如互动电视，远程学习，运动图像质量的视频会议和可视电话将继续增加。
事实上，一些观察家认为，已经为这些未来服务的全球需求的今天。
能够满足这一需求，不断增加新的服务，在鼠标点击的速度是建立在通信领域的巨大竞争。
这种能力也提供了巨大的潜力。
谁能给一个不断增长的客户群可以双重甚至三重他们的收入在短时间。
作为一个结果，光纤技术如FTTH的需求正在增长。
在WDM领域技术的进步将进一步完善和提升技术，使更多的运营商来证明对FTTH的投资。
Technologies on Fourth-Generation Mobile Communication（第四代移动通信技术）
第四代移动通信是一个混合的概念和技术在制造。
一些可以被确认为来自3G，和被称为进化（WCDMA和CDMA2000的演进，如）而其他涉及新的接近无线移动，有时标记的革命。
什么是重要的，虽然，是超越3G技术在走向无线世界基本关联的共识，由者介绍的一个术语，这些术语意指从根本上更好的无线移动通信的未来。
第四代移动通信包括频谱的分配和利用，创新的无线通信，网络的概念和技术，服务和应用程序。
这四大领域是交织在一起的，和创新不可避免地要求别人改变。
在所有的情况下，正是这些相互作用的方法，技术，和服务/应用程序与市场，用户的需求和请求；，甚至未知的未来用途，可以驱动一个重大的技术革命运动提供了潜在的，或非常迅速而深刻的变化。
这是我们的信念，在这一过程的开始，这对21世纪第一个十年的其余部分将提供基础的无线在未来有用的和无处不在的计算机今天。
这四大领域提供创新来驱动的过程。
频谱分配和利用是在自适应频谱和带宽分配的一个可能的范式变化的研究开始起步，为的是在动态频谱资源的利用研究。
在频谱资源分配，分配的想法，或
者用一种方式，不是固定的是调查在欧洲，亚洲，和美国，并开始被视为受到监管机构的可能性。
谱是非常珍贵的资源我们没有尽我们所能。
在理解和使用频谱需求的进步，随着身体，MAG的链接，和网络层的方法来优化使用的频谱，也包括处理资源的控制，能够提供正确的服务和服务质量。
监管制度的变化也将是必要的。
无线电通信技术创新将真正成为任何重大改变发动机。
这能力提供大量的数据传输速率，高达100 MB或1 Gb，已经提到。
这在很大程度上是由多个接入的能力决定的，调制和编码，以及无线资源技术来提供这些数据有效地在移动在无线环境中。
要更高的速度意味着渠道是真正的宽带波形处理，因此必须考虑更多的可分辨但随机，多路径。
改进的多址接入信道编码也需要。
MC-CDMA IL和OFDM 进行调查作为改进的编码方案，以及各种多址调制和编码方案的多用户组合。
还包括空分多址接入，智能天线和空时编码技术，。
在所有的情况下，快速适应信道条件和交通条件的关键是提供必要的服务质量。
在无线接入领域的另外两个方面也很重要，如网络领域。
一个是可重构的无线接入点和技术。
那些需要的硬件和软件采用击败无线接入技术适合每一种情况下（即适应可用的频谱信道条件，和网络）。
幸运的是，有软件可重构无线技术在调查中，和在某些情况下，在非常简陋的形式，部署。
将需要更多的。
但更多的可重构的收音机是必要的；也需要重构网络，由于不同的接入技术的融合将要求网络提供一些无线技术，实际上是一个适应的过程的一部分。
网络的变化将在两个大的方面是明显的。
适应的过程。
网络的变化将在两个大的方面是明显的。
一是向更多的唱片几乎一定进化，或分组交换，方法，和从电路交换，甚至一个分组交换叠加在电路交换技术如3G。
因此，对于突发式通信的快速采集和其他需要物理层技术将需要。
还需要的是物理层和网络层技术实现所有LP网络的控制和优化，并在一个高度可变的无线和网络操作环境。
另一个相关的方面，需要大的网络的变化，涉及到的各种技术和服务的融合，如WLAN和移动。
这些努力为用户谁想要沟通的数据，语音，视频和其他应用程序和可能的各种服务，将有两个驱动融合以及新技术的需求。
最后将这些，可能还有其他的技术，能满足一个未来的无线市场，还要提供新的、有效的服务和应用的挑战，但不知道它想要什么，这将确定什么样的无线世界将像第四代移动通信的研究是一个重要的对新的词汇和术语。