物理专业名词

1、Unit 1Ideal operational amplifier(op amp)理想运算放大器electronics电子学analog signal模拟信号digital signal数字信号voltage gain电压增压bandwidth带宽closed-loop gain闭环增益supplyvoltage电源电压power dissipation功率消耗resistance电阻impedance阻抗bias currents偏置电流frequency response频率响应phase shift相移transient response瞬态响应distortion失真common-mo

2、de rejection共模抑制open-loop gain开环增益voltage电压direct current(DC直流电alter nat ing curre nt(AC交流电current电流transducer传感器data sheet技术规格表offset voltage drift补偿电压漂移frequency频率(IC)集成电路chemistry textbook元素周期表bipolar-junctiontransistor(BJT)双极结型晶体管diode二极管field-effect transistor(FET)场效应管transistor晶体管light emittin

3、g diode(LED)发光二极管flip-flop触发器metal-oxidesemic onductor(MOS金属氧化物半导体complementary-MOS互补型base基极emitter发射极collector集电极gate栅极drain漏极source源极Unit 3EM (全写Electromagnetic) filed电磁场net EMfiled净电磁场wireless communications无线通信physical filed物理场gravitation wan万有引力the weak/stronginteraction弱/强相互作用electric filed电场s

4、tationary/moving charges静止/运动电 荷Maxwells equations麦克斯韦方程组Lorentzforce law洛伦兹力定律quantum mechanical量子力学radio transmitter无线电发射机metal atoms金属原子radiation of lowfrequency低频辐射ultraviolet catastrophe紫外灾难a fixed frequency固定频率Max Planck普朗克常量the photoelectric effect光电效应integrated circuitUnit 2magnetic filed磁场a

5、 quantum electrodynamics量子电动力学thegrayitational filed of the sun太阳重力场Unit 4electronic transmitter电子发射机public telephone networks公共电话网gross worldproduct世界总产值mobile phone移动手机radio broadcast无线电广播free space自由空间point-to-point communication点对点通信analogue/digital signals模拟/数字信streams of information信息流time-div

6、ision multiplexing时分多路技术（TDM）phase-shift keying相移键控frequency-shift keying频移键控amplitude-shift keying振幅键控amplitude modulation幅度调制frequency modulation频率调制Unit 5Multiple Access Techniques多址接入技 术frequency spectrum频谱fixed bandwidth固定带宽FDMA(Frequency Division Multiple Access)频分多址TDMA(Time Division Multiple

7、 Access)时分多址CDMA(Code Division Multiple Access)码分多址radio spectrum无线电频谱wireless network无线网络base station基站analog transmissions模拟通信available bandwidth可用带宽analog signals模拟信号multipath effects多径效应inter-symbol interference码间串扰Global System for Mobile Communications全球移动通信系统spread spectrum technique扩频技术pseud

8、orandom noise code(PN码)伪随机噪声信号correlate卷积accurate ranging精准测距multipath tolerance多径适应性LSI(Large Scale Integrated circuit)大规模集成电路VLSI(Very Large Scale Integration)超大规模集成电路process gain处理增益signal to noise信噪比bit rate比特率background noise背景噪声wide spread interference宽(扩)频 干扰chip码片synchronization同步forward lin

9、kencoding前向连(链)接编码matrix矩阵reverse link encoding反向链接编码time slot时隙unit6mobile communications移动通信cellular phones蜂窝电话cellular system蜂窝系统cordless phones无绳电话Radio Frequency(RF)射频transceiver收发器terminal终端the wireless infrastructure无线基础设施forward channel前向信道downlink下行链路reverse channel逆向信道uplink上行链路FM(frequenc

10、y modulation)调频carrier frequency载波频率frequency reuse频率复用MTSO(mobile telephoneswitching office)移动电话交换机构co-channel interference共信道干扰handoff切换roams漫游path loss and multipath fading路径损耗和多径衰弱phase shifts相移amplitudes幅值space diversity空间分集antenna diversity天线分集non-faded signalR-无衰弱信号frequency diversity频率分集time

11、 diversity时间分集delay spread延迟扩展attenuation衰减absorption coefficient吸收系数RMS(Root-Mean-Square)均方根microsecond微秒kilohertz千赫digital modulatingwaveform数字调制波形interleaving交织signal processing techniques信号处理技术bit stream比特流Unit7Satellite Communications卫星通信Communications Satellite通信卫星Commercial satellite商业卫星artif

12、icial satellite人造卫星television broadcasting电视广播radiobroadcasting无线电广播wide-area network communications广域网络通信point-to-point点对点wireless local area network无线局域网络Earth orbit地球轨道amateur radio communications业余无线 通信weather forecasting天气预报Global Positioning System (GPS)全球定位系统hand-held terminals手持终端fixed-point

13、telephone固定电话hand held telephone (cellular phone)手 持电话cable channel有线电视频道Direct Broadcast Satellite(DBS)直播卫 星central control unit中央控制单元Fixed Service Satellite(FSS固定服务的卫星radio frequency无线射频linear polarization线性极化Tele Vision Receive Only (TVRO)仅电视 接收DTHHBO家庭影院NASA国家航空航天局low Earth orbit低地轨道space-borne

14、repeaters太空中继器satellite broadband卫星宽带data-forwardingservices数据转发业务dialup connection拨号上网wireline broadband有线宽带网络附录二conver optimization凸优化mathematical optimization数学优化least-squares最小二乘法linear programming线性规划nonlinear-programming非线性规划semidefi nite program半正定规戈Usec on d-order cone program二阶锥规戈Uautomatic

15、 con trol system自动控制系统sig nal process ing信号处理distance learning远程教学interior-point method内点法in frastructure基础设施electr onic circuit desig n电子技术课程设计comb in atorial optimizati on组合优化global optimizati on整体最佳化real-time实时computer-aided计算机辅助real-time reactive实时无功associated dual双相关联sin gular value奇异值self-c on

16、 corda nee自稳定data mi ning数据挖掘eleme ntary topology离散拓谱complexity an alysis复杂度分析theoretically orie nted）或理论化附录Wireless device无线设备cellular phone蜂窝电话微传感器网络home n etwork ing家庭组网Ban dwidth带宽restricti on限制；约束inno vative革新的， 创新的Protocol协议tether紧的in here nt固有的； 内在的；time-vary ing时变High Performa nee高性能worst-ca

17、se最坏情况late ncy时延Lossy compressi on有损压缩trade-off折中方案Architecture is deployed布置架构cross-layer跨层Optimizati on优化dem on strate证实protocol framework协议框架Physical qua ntity物理量radio freque ncy(RF)射频Personal digital assistant(PDA个人数码助手En ergy-efficie nt高能效的portable device便携式设备Real-time multimediacom muni cati o

18、n实时多媒体通信Medical即plicatio n医学应用Wireless Microse nsor n etwork无线image sen sor图像传感器extract data提取数据macrose nsor巨传感器Geopho ne sen sor地震检波传感器helicopter直升机bulldozer推土机Fault-tolera nt容错性redu ndancy冗余性compress压缩autonomous自动的Magnitude increase数量级增长error-prone易于出错The 3rdgeneration (3G)Globalsystemfor mobilecommunication(GSM)全球移动通信系统Six-fold 6倍Discrete cosine transform(DCT离散余弦变换Collaborate合作rotation轮换formation生成in terms of在什么方面诊断chemical/biologicaldetection生 化检测Medical monitoring医学监控deplete耗尽Energy dissipation能量消耗algorithm算法uniformity一致Ad-hoc自组织的self-confi