通讯类常用英文缩写名词.doc

通讯类常用英文缩写名词ADPCMadaptive differential pulse code modulating自适应差分脉冲调制ADSL asymmetric digital subscriber line 不对称数字用户环路（线路）AGC automatic gain control 自动增益控制AM amplitude modulation 振幅调制AMI alternate mark invertion 信号交替反转码（双极码）AMPS advanced mobile phone system 现代移动通信系统AN access network 接入网ARQ automatic repeat request 自动重发要求ASK amplitude shift keying 移幅键控ASIC application specific integrated circuit 专用集成电路ASCII America standard code for information interchange ASCII码ATM asynchronous transfer mode 异步转移模式AUC authentication center 鉴权中心AWGNadditive white Guassion noise 加性白色高斯噪声AU administer unit 管理单元AUG administer unit group 管理单元BCH bose-chaudhuri-hocquenghem 以名字命名的一种高效循环码B-ISDNbroadband ISDN 宽带ISDNBPF band pass filter 带通滤波器BPSK binary phase shift keying 二进制移相键控BQM balanceable quaternary phase shift keying 平衡四相移键控BSC binary symmetric channel base station controller 二进制对称信道基站控制器BTS base transceiver station 基站CCIR International Consultive Committee for Radiotelecommunication 国际无线电咨询委员会CCITT Consultive Committee for International Telegraph and Telephone 国际电报电话咨询委员会CDF cumulative distribution function 概率（累积）分布函数CELP code excited linear prediction 码激励线性预测CDMAcode division multiple access 码分多址CIR carrier to interference ratio 载（波）干扰比C/N carrier to noise ratio 载波信噪比CPFSKcontinuous phase frequency shift keying 连续相位移频键控CPM continuous-phase modulation 连续相位调制CQM complex quaternary phase shift keying 复四相调制CRC cyclic redumdancy check 循环冗余校验CMI code mark invertive 符号及转码dBI dB with respect to a isotropic radiator power 相对各向性辐射器增益dBdBI dB milli watt 以毫瓦为电平零分贝dBW dB watt 以一瓦为电平零分贝DCT discrete cosine transform 离散余弦变换DECTdigital European cordless telecommunication 泛欧数字无绳通信（系统）DFT discrete Fourier transform 离散傅氏变换DLL delay locked loop 延时锁定环DM（M）delta modulation 增量调制DMCdiscrete memoryless channel 离散无记忆信道DMTdiscrete multitone 离散多音频（调制）DPCMdifferential pulse code modulation 差分脉冲编码调制DPSK differential phase-shift keying 差分移相键控DQM double quaternary modulation 双四相调制DQPSKdifferential quaternary phase shift keying 差分正交移相键控DR digital radio 数字无线电DS-CDMA direct sequence spread-code division multiple access 直扩序列码分多址DS-FHdirect sequence spread-frequency-hopped 直接序列扩频跳频DS-SSdirect sequence spread spectrum 直接序列列扩频DS direct sequence spread spectrum signal 直接序列扩频信号DSB double sideband 双边带DSB-SCdouble sideband suppressed carrier 双边带抑制载波DTE data terminal equipment数据终端设备DTMF dual tone multi-frequency 双音多频DWDMdense wavelength division multiplexing 密集波分复用EIR equipment identity register 设备识别寄存器EGC equality gain control 等增益控制EIRP effected radiated with respect to an isotropic radiator power 各向同性辐射器有效辐射功率EV-DO evolution-data optimized(CDMA2000 IXEV-DO) （CDMA2001X数据最佳化升级版本）EV-DVevolution-data and video CDMA2000 （CDMA2000）数据和视频业务升级版FDM frequency division multiplexing 频分复用FDMAfrequency division multiple accessing 频分多址FEC forward error correction前向纠错FFH-SSfast frequency hopped spread spectrum 快跳频扩频FH-SSfrequency hopped spread spectrum 跳频扩频FH frequency hopped 跳频FSK frequency shift keying 移频键控FIR finite impulse response 有限冲激响应FPLMTS future pubic land mobile telephone system 未来公共陆地移动电话系统GMSK Gaussian-pulse minimum shift keying 高斯脉冲最小移频键控GPRS general packet radio service 综合数据包无线业务GPS global positioning system 全球定位系统GSM group special mobile 移动通信特别小组 global system mobile communication 全球移动通信系统G/T gain/temperature 增益/温度（天线质量指标）HDB3 high density bipolar code of three order 三阶高密度双极性码HDLC high level data link controlled 高级数据控制链路HDTV high definition television 高清晰度电视HEC hybrid error correct 混合纠错HLR home location register 归属位置寄存器HPF higher pass filter 高通滤波器IEC International Electric Committee 国际电工委员会IIR infinite duration impulse response 无线冲激响应IP Internet Protocols 互联网协议IRQ information retransmission request 信息重发请求ISDNintegrated service digital network 综合业务数字网ISI intersymbol interference 符号间干扰ISO International Standards Organization 国际标准化组织ITU International Telecommunication Union 国际电信联盟ITU-R International Telecommunication Union-Telecommunication standardization sector 国际电信联盟-无线通信标准化部门IMT-2000 International Mobile Telecommunication2000 国际移动电信2000系统JPEGJoint Photographic Experts Groups 图片联合专家小组LEDlinear envelope detecting 线性包络检测LMSleast mean square 最小均方（算法）LPClinear predictive coding 线性预测编码LPFlower pass filter 低通滤波器MAP maximum a posterior probability 最大后验概率MASKM-ary amplitude shift keying 多元幅移键控MFSKM-ary frequency shift keying 多元频移键控MIMOmultiple input multiple output 多入多出分集技术MPEGmoving picture experts group 活动图像专家组MPSKM-ary phase shift keying M元相移键控ML maximum likelihood 最大似然MLSE maximum likelihood sequence estimation 最大似然序列估计值MMSEminimum mean square error 最小均方误差MQAMM-ary quadrature amplitude modulation M元正交调幅MRC maximal ratio combining 最大比值合并MSK minimum(frequency) shift keying 最小移频键控MSC mobile switching center 移动交换中心MS mobile station 移动台NBFM narrow band frequency modulation 窄带调频NBPM narrow band phase modulation 窄带调相NGN next generation network 下一代网络N-ISDNnarrow band ISDN 窄带ISDNNRZ non-return zero code 不归零码NRZI non-return zero inversion code 不归零反转码OFDM orthogonal frequency division muitiplexing 正交频分复用OOK on-off keying 开闭键控OQPSKoffset quadrature phase shift keying 偏移四相移键控OSI open system interconnection 开放系统互连OMC operations & maintenance center 操作维护中心PAM pulse amplitude modulation 脉(冲)幅(度)调制PCH paging channel 寻呼信道PCM pulse code modulation 脉码调制PCN personal communication network 个人通信网PDF probability density function 概率密度函数PDM pocket division multiplexing 包分复用PLL phase locked loop锁相环路PN pseudo noise 伪随机噪声PPM pulse phase modulation 脉冲调相PWM pulse wide modulation 脉冲宽度调相PRS partial response signal 部分响应信号PSC primary synchronization code 主同步码PSK phase shift keying 移相键控PSTN public switching telephone networks 公共交换电话网QAM quadrature amplitude modulation 正交调幅QoS quality of services 服务质量QPSK quadrature phase shift keying 正交相移键控QCELP qualcomm code excited linear prediction 高通码激励线性预测混合编码R-S(code)Reed-Solomon(code) 里德-索洛蒙码，RS码RZ return zero code 归零码RPE-LTP regular pulse excited long term prediction 规则脉冲激励长期预测编码SCH synchronization channel 同步信道SDH synchronous digital hierarchy 同步数字系列SDMA space division multiple access 空分多址SDR software-defined radio 软件无线电SIR signal to interference radio 信干比SISO soft input soft output软输入软输出（算法）SNR signal to noise ratio 信噪比SONET synchronous optical NET work 同步光纤网SS spread spectrum 扩频，扩展频谱SSB single side band 单边带SSB-LSBsingle sideband-lower sideband 单边带-下边带SSB-USBsingle sideband-upper sideband 单边带-上边带SSP service switching point 业务交换点STM synchronous transmission modulus 同步传输模式STP signaling transfer point 信令转换点STD space transmit diversity 空间发射分集STTD space time transmit diversity 空时发射分集TCM trellis coded modulation格型码调制TDD time division duplex 时分双工TDM time division multiplexing 时分复用TDMA time division multiple access 时分多址TDSCDMAtime-division synchronization code divisionmultiple-access 时分同步码分多址TDL tau-dither loop T型抖动环TH time hoped 跳时TPC transmit power control 发射功率控制TSTD time switched transmit diversity 分时发射分集TS time slot时隙TST time slot interchange 时隙变换TU tapped unit 支路单元TUG tapped unit group 支路单元组UHFTV ultra-high frequency TV 超高频电视VA Viterbi algorithm 维特比算法VBR variable bit rate 变比特率VC virtual channel虚通道VCC voltage controlled clock 压控时钟VCO voltage controlled oscillator（电）压控振荡器VHF-TVvery-high frequency TV 甚高频电视VQ vector quantization 矢量量化VLR visitor location register 访问位置寄存器VO Video objet 视频对象VOP video objet/plain 视频对象场景平面WAN wide-area network 广域网WBFM wideband frequency modulation 宽带跳频WBPM wideband phase modulation 宽带调相WCDMAwide-band CDMA 宽带码分多址WDM wavelength division multiplexing 波分复用WHT Walsh-Hardmard transform 沃尔什-哈达码变换WLL wireless local loop 无线本地环路1. PCM编码25一、 汉译英抽样量化与编码sampling,quantizing and coding抽样速率 sampling rate模拟信号analog signal含噪声的环境noisy environment地面系统terrestrial system8位码序列8-digit sequence话路speech channel脉冲流stream of pulses传输质量transmission quality传输路由transmission path噪声功率noise power接收端receiving terminal幅值amplitude value重复率repetition rate数字通信digital communication信噪比signal-to-noise ratio二进制传输binary transmission帧格式frame format抽样频率sampling frequency编码过程coding process数字传输digital transmission信号电平signal levels反向操作reverse operation同步字synchronization word二、 英译汉The schemes for performing these three functions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 sparking of a car ignition system汽车点火系统的打火The stream of the pulses with a repetition rate of 64kHz重复率为64kHz的脉冲流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由卫星上接收的信号The complete information about a particular message一条特定消息中的完全信息The shape of the transmitted signal被传信号的波形The attenuation introduced by transmission path由传输路由引起的衰减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 so 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Terrestrial 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2. 异步串行数据传输一、 汉译英串行接口 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 idle state传号电平 mark level空号电平 space level起始位 start bit终止位 stop bitT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 data明显的缺点 obvious disadvantage二、 英译汉Asynchronous serial data transmission异步串行数据传输The most popular serial interface最为流行的串行借口The transmitted data所传输的数据The clocks at the transmitter and receiver发送机和接收机的时钟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 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 bit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3. ISO网络标准一、 汉译英联网技术networking technology国际标准化组织 The International Organization for Standardization参考模型reference model数据分组data packets应用程序application program网络媒体network media分层layering硬件与软件hardware and software表示层the presentation 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the data format主机host协议protocol连接connectivity逻辑选址logical addressing二、 英译汉Networking technology联网技术Proprietary networking system专用网络系统The international organization for standardization国际标准化组织Compatibility between the various types of networks各种网络之间的兼容性Seven numbered layers七层Standardization of network components网络部件的标准化Error recovery纠错Receiving hosts system接收方的主机系统Connection-oriented circuits面向连接的电路Information flow control信息流的控制Network topology网络拓扑Network media access网络媒体接入Electrical specification电气标准Maximum transmission distance最大传输距离4. 互联网一、 汉译英网络资源network resource信息服务information services远程终端remote terminals地址address互联的系统interconnected systems命令command电子邮件electronic mail主机host无线信道wireless channels搜索工具searching tools用户界面user interface拷贝copy互联网internet存取access文本信息textual messages鼠标mouse协议protocol超文本协议hypertext protocol二、 英译汉Giant network of computers located all over the world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搜索工具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机The unix operating system UNIX操作系统Textual messages文本信息A way to move data between the internet and your PC在因特网和你的PC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5. 光纤通信介绍一、 汉译英光纤通信optical fiber communications光源light source波长wavelength激光器laser色散dispersion传输介质transmission medium多模光纤multi-mode fiber长途干线long-haul trunks单模光纤single-mode fiber带宽bandwidth宽带用户wideband subscriber纤维光学fiber-optics商用技术commercial technology门限电流threshold current光检测器photodetector波分复用wavelength multiplexing纤维光网络fiber-optic networks视频带宽二、 英译汉Long distance transmission长途传输Repeater spacing中继距离Commercial technology商用技术Optical fibre communications光纤通信The total length of unstalled fibre已装光纤总长Long-haul telecommunication system长途通信系统The low-loss silica fibre低衰减的石英纤维Fibers with losses approaching the Rayleigh limit衰减逼近瑞利极限的光纤Room temperature threshold currents室温下的门限电流The longer wavelength region较长波长区Subscriber access project用户接入工程Improvements in component performance and reliability部件性能和可靠性的改进Data rates for installed fibre optic system已安装的光纤系统的数据速率Gigabit per second range每秒吉（G）比特Wavelength multiplexing波分复用Widebend subscriber loop system宽带用户环路系统Multifibre connectors多纤维连接器Projected lifetime设计寿命Light source 光源Single-mode fibre单模光纤Distributed-feedback laser分部反馈式激光器Information capacity信息容量Switching hierarchy交换体系Broadband services宽带业务6. 同步数字序列一、 汉译英同步数字序列Synchronous digital hierarchy国际标准international standard信号格式signal format网络节点接口network node interface支路信号 tributary signals数字交叉连接digital cross-connection网络管理network management网络维护network maintenance网络运营商network operators传输速率transmission rate支路映射tributary mapping灵活性flexibility用户业务subscriber services覆盖层overlay levels制造商manufacturer同步传输帧sunchronous transmission frame线路终端复用器line terminal multiplexer分插复用器add-drop multiplexer再生中继器regenerator灵敏度sensitivity虚容器virtual container成帧字节framing byte段开销section overhead端到端传输end-to-end transmission误码监视error monitoring信号处理节点signal processing nodes静负荷payload指针pointer二、 英译汉Synchronous transmission system同步传输系统The standard covering the NNI覆盖NNI的标准The international standard interface国际标准接口Direct synchronous multiplexing直接同步复用Flexible telecommunication networking灵活的通信联网Point-to-point transmission technology点对点的传输技术Advanced network management先进的网络管理The equipment supplied by different manufacturers不同厂家提供的设备The flexibility provided by SDH SDH提供的灵活性Operator of synchronous multiplexers同步复用设备的运营者Telecommunication networking电信联网Tributary signals支路信号Maintenance capabilities维护能力Unified telecommunication network infrastructure统一的电信网络基础结构Building blocks组件Terminal multiplexer终端复用器Through-mode fashion贯通方式Synchronous DXC同步数字交叉连接Varying bandwidth可变贷款Individual tributary signals各个支路信号Transport system传输系统Optical carrier光载体2-dimensional map二维图形The order of transmission传输次序Framing byte成帧字节Virtual container虚容器Section overhead段开销Bit-error monitoring误码检测7. 波分复用一、 汉译英对光特性的理解The understanding of the properties of light基本重要性the fundamental importance想象今天的通信系统To imagine the communication system of today光的高速公路the highways of light巨量的信息the massive amount of information采用通信新技术To adopt new communication technologies大量的视频信息The large amount of video information波分复用the wave divide multiplexing只发送单个波长To send only one wavelength传输大量的波长To transmit a large amount of wavelength无差错传输the error-free transmission自愈特性the self-healing properties直接接入光网络To access directly to the optical network视频信息the video information二、 英译汉The major advance that led to the WDM revolution导致WDM革命的主要进展The invention of the optical amplifier光放大器的发明The next span of fiber下一段光纤To boost the signal power of all wavelength提高所有波长信号的功率The advances in optical amplifier在光放大器方面的进展The development of gain equalization techniques获益均衡技术的发展The multiple-wavelength transmission多波长传输The growth of wireless system无线系统的增长The growth of various application各种应用的增长The wide variety of services各种各样的业务To handle various types of traffic处理各种业务类型The all-optical cross-connect全光交叉连接8. 蜂窝式电话移动系统一、 汉译英蜂窝式移动电话cellular mobile telephone服务性能service performance频谱frequency spectrum频带frequency band微处理器microprocessor移动手机mobile unit广播业务broadcast service天线antenna子系统subsystems移动用户mobile subscriber服务能力service capability服务性能service performance利用率utilization带宽bandwidth单边带single-side band扩频spread spectrum大规模集成电路large scale integrated circuit蜂窝点cellular site蜂窝交换机cellular switch天线机架radio cabinet呼叫处理call processing服务器service area二、 英译汉Frequency spectrum utilization频谱利用率The limited assigned frequency band有限的指定频