通信与信息工程专业英语教程词汇翻译 陈杰美

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1、analog模拟digital数字的binary-codednumber二进制编码数electromagneticinduction电磁感应telegraph电报triodevacuumtube三级真空管broadcasting广播amplitudemodulation(AM)幅度调制frequencymodulation(FM)频率调制phasemodulation(PM)相位调制transistor晶体管linearintegratedcircuit线性集成电路microwave微波satellite卫星opticalfiber光纤shortwave短波n

2、egative-feedbackamplifier负反馈放大器PCM（Pulse-CodeModulation）脉冲编码调制time-divisionmultiplexing(TDM)时分多路stereoFM立体声调频error-correctioncode纠错编码adaptiveequalization自适应均衡randomaccessmemory(RAM)随机存取存储器VLSI(verylargescaleintegration)超大规模集成FAX(facsimile)传真cellulartelephone蜂窝电话移动电话oscilloscope示波器sp

3、readspectrumsystem扩频系统ISDN(integratedservicesdigitalnetwork)综合业务数字网HDTV(highdefinitiontelevision)高清晰度电视transmitter发射机channel信道频道通道receiver接收机baseband基带bandwidth(BW)频带宽度带宽ADC(analog-digitalconverter)模数变换器carrier载波载流子bandpasssignal带通信号signalsideband(SSB)单边带phase-shiftkeying(PSK)相移键控IT

4、U(internationaltelecommunicationsunion)国际电信联盟PTN(publictelecommunicationsnetwork)公用电信网络LOSpropagation视线传播ionosphericreflection电离层反射highfidelity(Hi-Fi)高保真度signal-to-noise信噪比interference干扰mapping映射dimension维数量纲frequencyselectivity频率选择性photocathode光电阴极rasterscanning光栅扫描blankingpulse消隐脉

5、冲multiplexer多路转换器encoder编码器decoder译码器pixel像素vocaltractfilter声道滤波器melodicstructure韵律结构harmonicstructure谐波结构interlacedfields交替的场horizontalretrace水平行回程primarycolors基色interactivevideo交互式视频ASCII美国标准信息交换码DCT(discretecosinetransform)离散余弦变换JPEG(jointphotographicexpertsgroup)联合图像专家组MPEG(moti

6、onphotographicexpertsgroup))活动图像专家组synchronoustransmission同步传输asynchronoustransmission异步传输frame帧frame-packing成帧modeling建模Fourierseries(FS)傅里叶级数transmissionmedium传输介质coaxialcable同轴电缆instantaneouspower瞬时功率decibel分贝dBRF(radiofrequency)射频commutator换向器转接器ripple波纹起伏ionosphere电离层potentiald

7、ifference电位差shotnoise散弹噪声flickernoise闪变噪声noisefigure噪声系数mathematicmodel数学模型rmsvalue均方根值orthogonalseries正交系数powerdensityspectrum功率谱密度commonlogarithm以10为底的对数DCpowersupply直流电源ACripple交流波纹AMreceiver调幅接收机thermalnoise热噪声root-mean-square(rms)alternatingcurrent(AC)交流directcurrent(DC)直流cable

8、television(CATV)有线电