电子自动化系考研复试专业英语词汇(完美版)(共40页).doc

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1、精选优质文档-倾情为你奉上1.通信原理词汇专心-专注-专业Uint1抽样量化和编码：sampling quantizing and coding话路：speech channel幅值：amplitude value抽样频率：sampling frequency抽样速率：sampling speed rate 脉冲流：stream of pulses重复率： repetition rate编码过程：coding processs模拟信号：analog signal传输质量transmission quality数字通信digital communication数字传输digital transm

2、ission含噪声的环境noisy environment传输路由transmission path信号比signal-to-noise ratio信号电平signal levels地面系统terrestrial system噪声功率noise power二进制传输binary transmission反向操作reverse operation8位码序列8-digit sequence接收端receiving terminal帧格式frame format同步字synchronization wordthe schemes for performing these three function

3、 实现这三项功能的方案a series of amplitude values 一串幅值a speech channel of telephone quality 电话质量的话路a sequence of 8-binary digits 一个8位二进制码的序列a minimum theoretical sampling frequency 理论上的最小抽样频率a voice channel occupying the range 300Hz to 3.4KHz 占据着300Hz到3.4KHz 频率范围的话路8-digits per sample value 每个样值8位码the sparkin

4、g of a car ignition system 汽车点火系统的大火the stream of the pulsese with a repetition rate of 64KHz 重复率为64KHz的脉冲the relationship of the true signal to the noise signal 真实信号与噪声信号的关系the signal received from a satellite 由卫星上收到的信号the complete information about a particular message 一条特定消息的全部信息the shape of the

5、transmitted signal 被传信号的波形the attenuation introduced by transmission path 由传输路由引入的衰减the unit that converts sampled amplitude value to a set of pulses 将抽样的幅值转换成一串脉冲的单元a sequence relating to channel 1，2 and son on涉及到第一路、第二路及其他各路的序列a unique sequence of pulses called synchronization word 被称为同步字的独特的码序列te

6、rrestrial system 地面系统the presence or absence of the pulse 脉冲的“有”或“无”a high-speed electronic switch 高速的电子开关the time division multiplexer 时分多路复用器Time Division Multiplexing 时分多路复用Unit2串行接口 serial interface 显示终端 CRT terminal 发送器与接收器 transmitter and receiver数据传输 data transmission数据流 data stream 闲置状态the i

7、dle state 传号电平 mark level 空号电平 space level 起始位start bit 停止位stop bit T秒的持续时间duration of T seconds 奇偶校验位parity bit 错误标志error flag 传输错误transmission error 下降沿falling edge 符号间的空格 intersymbol space 接收机的定时 receiver timing 本地时钟local clock 磁带 magnetic tape 控制比特 control bit 逻辑1电平logical 1 level 二进制数据binary da

8、ta 明显的缺点obvious disadvantage asynchronous serial data transmission 异步串行数据传输 The most popular serial interface 最为流行的串行接口 The transmitted data 所传送的数据 The clocks at the transmitter and receiver发送器和接收器的时钟 The era of teleprinter电传机的时代 The dots and dashes of a character一个字符的点和划 Three times the duration of

9、 intersymbol space符号间空格持续时间的三倍 The group of bits called characters 被称为字符的比特组 The invariable units comprising 7 or 8 bits of information由7或8个比特的信息组成的固定单元 A clock generated locally by the receiver 由接收机本地产生的时钟 The received parity bit following the character 在字符后所收到的奇偶校验位 The falling edge of the start b

10、it 起始位的下降沿 The character-oriented nature of the data link 数据链路面向字符的特性Uint3联网技术 networking technology国际标准化组织 international Organization for Standardization (ISO)参考模型 reference model数据分组 packet data应用程序 application program 网络媒体 network media分层 called layering 硬件和软件 hardware and software表示层 the present

11、ation layer传输层 the transport layer数据链路层 the data link layer网络服务 network services文件接入 file access数据格式 data format主机 host协议 protocol连接 connectivity逻辑地址 logical addressingNetworking technology 联网技术Proprietary networking system 专用联网系统The international Organization for Standardization 国际标准规划组织Compatibili

12、ty between the various type of networks 各种网络之间的兼容性Seven numbered layers 七层协议Standardization of network components 网络部件的标准化Error recovery 纠错Receiving hosts system 发方主机系统Connection-oriented circuits 面向连接的电路Information flow control 信息流控制Network media access 网络媒体接入Electrical specification 电气特性Maximum tr

13、ansmission distance 最大传输距离Uint 4传输控制协议transmission control protocol互联协议Internet protocol数据通信data communication微波microwave高层协议higher-level protocol流量控制traffic control目的地destination（信）源resource段segment互联层Internet layer分组交换packet switching 超文本传输协议hypertext transfer protocol灵活性flexibility数据报datagramtran

14、smission control protocol传输控制协议Internet protocol互联协议satellite links卫星链路the Standard On which the internet has grown互联网发展所基于的标准Network access layer网络接人层connectionoriented protocol面向连接的协议file transfer protocol文件传输协议hypertext transfer protocol超文本传输协议domain name system域名系统developer of software软件开发人user

15、datagram protocol用户数据报协议packet -switched technology分组交换技术Unit 5局域网local area network工作站workstation外设peripheral拓扑topology集线器hub交换器switch流量traffic网络接口卡network interface card数据库database印刷电路板printed circuit board主板motherboard网络适配器network adaptor并行数据parallel data电脉冲electrical impulses中继器repeater联网介质netwo

16、rking medialocal-area network局域网logical topology逻辑拓扑devices that connect directly to a network segment直接连到网络段的部件network interface card网络接口卡process of the encapsulation打包的过程standardized symbol标准化的符号printed circuit board印刷电路板expansion slot of a bus on a computers motherboard在计算机母板上总线的扩展槽network adapte

17、r网络适配器parallel signal produced by the computer由计算机产生的并行信号transmltting station发送站the specifications for Category 5 twisted-pair Ethernet五类双绞线以太网的规范Unit 6无源集线器passive hub网桥 bridge 可用带宽 useable handwidth地址表addressing table交换器 switch路由器 router光纤optical fiber无线介质wireless media铜线copper wirethe device that

18、 serves as the center of network作为网络中心的部件multi-port repeater多端口中继器reliability of the network网络的可靠性passive or active hubs无源或有源的集线器protocol address or network address地址或网络地址network administrator网络管理者switching of packets to the best route交换分组到最佳路由network segment网络段Unit 7网络资源network resource 信息服务informa

19、tion services 远程终端remote terminals 地址address 互连的系统 interconnected systems 命令 command 电子邮件electronic mail 主机Host 无线信道wireless channels搜索工具popup 用户界面user interface 拷贝copy 互连网popup 存取access 文本信息textual messages 鼠标mouse 协议protocol 超文本协议hypertext protocol giant network of computers located all over the w

20、orld分布在全世界的计算机的巨大网络backbone system主干系统nationwide network全国范围的网络 electronic conferences电子会议remote terminal远程终端live conversation实时的对话 world wide web万维网searching tool搜寻工具the largest repository of information 最大的信息库network facilities resources网络设备资源the vast majority of the computers on the net在网上的绝大多数计算

21、机the Unix operating system UNIX操作系统textual message文本信息sa way to move data between the internet and your PC 在因特网和你的PC机之间传送数据的方法the convenient searching tools方便的搜索工具the networked hypertext protocol 联网的超文本协议Unit 8optical fiber communications 光纤通信 light source 光源 wavelength 波长laser 激光器dispersion 色散trans

22、mission medium传输介质multi-mode fiber 多模光纤long-haul trunks 长途干线single-mode fiber 单模光纤bandwidth 带宽wideband subscriber 宽带用户fiber-optics 纤维光学commercial technology 商用技术threshold current 门限电流photodetector 光检测器wavelength multiplexing 波分复用fiber-optic networks 纤维光网络video bandwidth 视频带宽长途传输 long distance transm

23、ission中继距离. repeater spacing商用技术 . commercial technology光纤通信 . optical fibre communications已装光纤的总长度 . the total length of installed fibre长途通信系统 long-haul telecommunication system低衰减的石英纤维 the low-loss silica fibre衰减逼近瑞利极限的光纤fibers with losses approaching the Rayleigh limit室温下的门限电流 . room temperature

24、threshold currents较长波长区the longer wavelength region用户接入工程. subscriber access project部件性能和可靠性的改进improvements in component performance and reliability已安装的光纤系统的数据速率data rates for installed fibre optic system每秒吉比特gigabit per second range波分复用. wavelength multiplexing宽带用户环路系统. wideband subscriber loop sys

25、tem多纤连接器. multifibre connectors设计寿命 . projected lifetime光源. light source单模光纤. single-mode fibre分布反馈式激光器 distributed-feedback laser信息容量 information capacity交换体系. switching hierarchy宽带业务 .broadband servicesUnit 9cellular mobile telephone 蜂窝式移动电话service perfor mance 服务性能frequency band 频带microprocessor

26、微处理器mobile unit 移动手机broadcast service广播业务antenna 天线subsystems 子系统mobile subscriber 移动用户service capability 服务能力untiliaztion 利用率bandwidth 带宽single-sideband 单边带spread spectrum 扩频large scale integrated circuits 大规模集成电路cellular site 蜂窝点cellular switch 蜂窝交换机radio cabinet 无线机架call processing 呼叫处理service ar

27、ea 服务区frequency spectrum untiliaztion 频谱利用率the limited assigned frequency band 有限的指定频带complicated features and functions 复杂的特性和功能large-scale integrated circuit technology 大规模集成电路技术developmental cellular system 实验性的蜂窝系统central coordinating element 中央协调单元cellular administration 蜂窝管理operational limitat

28、ion of conventional mobile telephone system 传统移动电话的运行限制limited service capability 有限的服务能力radio communication industry 无线通行行业available radio frequency spectrum 可用的无线电频谱the allocated frequency band 所分配的频带mobile transceiver 移动收发器technological feasibility 技术上的可行性servere spectrum limitation 严厉的频谱限制FM bro

29、adcasting service 调频广播业务propagation path loss 传播路径衰耗multipath fading 多路径衰耗telephone company zone officee 电话公司地方局unit 10 personal communications 个人通信communication standards 通信标准fixed telephone service 固定电话业务network capacity 网络容量mobile switching center 移动交换中心international roaming 国际漫游broadband service

30、s 宽带业务interface converseon 接口转换frequency allocation 频谱分配analogue mode 模拟方式cellular communication principle 蜂窝通信原理jamming 拥塞cell splitting 蜂窝裂变base station 基站register 寄存器billing function 收费功能access method 接入方法burst transmission mode 突发脉冲传输方式overhead information 开销信息handover algorithms 切换算法short messa

31、ge sevice 短消息服务technical specification 技术规范total acess communication system 全接入的通信系统global mobile communication system 全球移动通信系统time division multiple acess 时分多址facsimile and short message service 传真和短消息服务fixed communicateon networks 固定通信网络a more personalized system 更个人化的系统the cost and quality of the

32、 link 链路的价格与质量marker growth 市场的发展coaxial cable 同轴电缆frequency reuse and cll splitting 频率再生和蜂窝裂变cochannel interference 共信道干扰theroretical spectral capability 理论上的频谱容量micro-cellular system 微蜂窝系统base station transceiver 基站收发器subscriber register 用户寄存器advanced handover algorithms 先进的切换算法the GSM technicall

33、specifications GSM的技术规范unit 11circuit switching 电路交换packet switching 分组交换message switching 报文交换subnet 子网header 信头destination address 目的地error control误差控制store-and-forward manner 存储转发方式bursty 突发性transmission delay 传输时延intermediate switching equipment 中间交换设备switching technique 交换技术return signal 返回信号me

34、ssage processor 报文处理机given maximum length 给定最大长度information transfer 信息转移random 随机性dedicated circuit 专用电路channel utilization 电路利用率the capability of storing and manipulating users data 存储和处理用户的能力the special signaling message 特定的信令信息a well defined block of data called a message 被精心定义的称为报文的数据块the infor

35、mation regarding the source and destination addersses 涉及源和目的地址的信息the computer referred to as a message processor 叫做报文处理器的计算机the store-and-forward transmission technique 存储转发传输技术the dynamic allocation of the bandwidth 带宽的动态分配 the overall transmission delay of the message报文整个的传输时延switching technique 交

36、换技术total path of connected lines 连线的整个通路source-destination pair 源到目的地的一对communication parties 通信各方transmission unit 传输单元initial connection cost incurred in setting up the circuit 在建立电路时产生的起初连接成本low delay constraint requited by the user 用户所需的短时延的限制the fixed dedicated end-to-end circuit 固定专用的端到端电路low

37、channel utilization 低的电路利用率unit 12 asynchronous transfer mode 异步转移模式logical channel 逻辑信道virtual circuits 虚电路virtual paths 虚路径recommendation 建议network level 网络层service and application level 业务和应用层virtual connection 虚连接information superhighway 信息高速公路vedio-on-demand 点播电视statistical multiplexing 统计复用dig

38、ital information 数字化的信息identifier 标识符protocols 协议network node 网络节点broadband network 宽带网ATM forum ATM论坛 future-proofed 面向未来的image encoding 图像编码virtual private network 虚拟专用网data processing 数据处理short packets called cells 被叫做信元的短的分组bit rates of several hundred megabits a second 每秒几百兆比特的速率unique multiple

39、xing method 独特的复用方法the physical connection between any to terminals 任何两个终端之间的物理连接interactive video services 交互式的视频业务 a nature vehicle for multimedia services 多媒体业务的自然载体the crrent and future requirements of both operators and users 运营者和用户当前和未来的要求the technique for switching high bit rate channel 高比特率信

40、道的交换技术multiplexing and switching technique 复用和交换技术the underlying type of transmission 所承载的传输类型dual identification 双重标识the transfer of cells to the network nodes 信元在网络节点上的转移hundreds megabits a second 每秒几百兆比特recommendation I.121 I.121建议the quality of service 业务质量in proportion to the exact requirement

41、与实际需求成比例the application and service transported over a network 网络所传送的应用和业务the ability to construct virtual network 构成虚网络的能力cost-effiective use of infrastructure 低价高效的利用网络设施coordinating different networks carrying different services 协调传送不同业务的不同网络essential components of future information superhighway

42、s 未来的信息高速公路的基本部件optimum use of resource 资源的最佳使用unit 13public telecommunication network 公众电信网local loop 本地环路switching node 交换节点twisted pair 双绞线external call 外部呼叫end office 端局digital data system 数字数据系统two wire connection 二线连接toll center 收费中心circuit-switched network 电路交换网 telephone subscriber 电话用户data

43、traffic 数据流量link 链路trunk 中继线half-duplex 半双工full-duplex 全双工voice-frequency circuit 音频电路trandem switch 汇接交换机topology 拓扑internode 节点间的route 路由full-duplex connection 全双工的连接the function of concentrating traffic 集中话务量的功能the switching nodes called tandem seitches 被称为汇接局的交换节点a fraction of subscriber 一小部分用户t

44、he interface between the station and the network 在站和网络之间的接口the subscriber that transmit digital signal 发送数字信号的用户national networks 国家网络architectural components 结构部件the branches between nodes 节点间的支路tree topology 树状拓扑transmission facilities 传输设备multiple voice-frequency circuit 多条音频电路synchronous TDM 同步时

45、分复用adjacent end offices 相邻的端局full connectivity 全连通性isolated subnetworks 被分离的子网high usage trunks 高效中继线basic order of selection 路由选择的基本次序backbone hierarchical network 主干体系网络two subscribers attached to different end offices 连接到不同端局的两个用户exchange area 交换区 Unit 14global communications 全球通信flexibility 灵活性e

46、nd-to-end digital connectivity 端到端的数字连接open network 开放网络voice encoding 语音编码integrated services digital network综合业务数字网infrastructure 系统结构International Organization for Standardization 国际标准化组织communication carriers 通信载体transmission medium 传输媒体interface equipment 接口设备bandwidth limitation 带宽限制switching equipment 交换设备pulse code modulation 脉冲调制basic access 基本接入degradation due to the transmission medium 由于传输媒体导致的质量下降bandwidth limitations inherent in a 4 kHz voice channel 4