电子信息专业英语复习资料
电子信息类专业英语Unit 15 Data Communications-文档资料
Unit 15 Data Communications
Passage A Data Communications Passage B Characteristics of Communication Channels Passage C Communication Equipment and Software
Unit 15 Data Communications
Initially, both the airline and banking operations can be established on a private basis, which would minimize the need for switching operations. But in both cases, the need to expand beyond private operations soon arises. In the case of the airlines, the need arises to access the facilities of other airlines; and in the case of the banks, certain common data facilities may be shared with other banks. Even though private networks may suffice for many services, the need to provide data communications between urban centers leads to regional and national networks. In the U.S., the Bell System, the independent telephone companies and specialized data communication networks are involved as carriers of such data.
电子信息类专业英语(西电第二版)Unit 4 Microel
Unit 4 Microelectronics
Integrated circuits are small, light, rugged, and reliable. They require less power and lower voltages than equivalent macroscopic circuits; consequently they operate at lower temperatures, and individual components may be close together without exceeding the operating temperature limit. Relatively little stray capacitance and short time delays are produced because of the short interconnections between the individual components in IC. Maintenance is simplified because if a component of the IC fails the complete IC is usually replaced. Mass production techniques of plane technology have reduced the cost of many IC so that they are almost as inexpensive as a single transistor. Eventually most conventional circuits will be replaced by IC.
［2］ The reduction in power dissipation is particularly important where a complex circuit is to be concentrated into a small space. The problem of extracting the heat generated in the circuit may then be a difficult one.
电子信息类专业英语 unit 4 Microelectronics
❖ 微型化是指减少元件和电路的几何尺寸, 从而增加封装 密度、降低功耗、减少信号传播延迟。
❖ The integrated circuit is a group of transistors manufactured from a single piece of material and connected together internally, without extra wiring . Integrated circuits are also called ICs or chips.
电子信息类专业英语unit 11 Database
·rest with意思为“取决于，属于…的权 限”，它在由since引导的原因状语从句中作 谓语。
［3］ A non-management employee would probably have no access privileges to the payroll data and could neither inquire about nor change the data.
• The portion of a playing field having specific dimensions on which the action of a game takes place. 比赛场地
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《电子信息工程专业英语教程》
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Field in dictionary
Unit 11 Database 数据库 （p137）
Passage A Database: A Better Way to Manage and Organize Data
Passage B DBMS and Data Independence, Integrity,Security
Passage C Database System and Three Data Models
2023/3/13
《电子信息工程专业英语教程》
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Approach in text
In a traditional approach using COBOL programs, each individual COBOL application program that used that particular field would have to be changed, recompiled, and retested. COBOL语言编程的习惯方法是：每个独 立的使用了这种字段的COBOL应用程序 都要修改、重新编译并检测。来自field in text
电子信息专业英语要点总结
重点词汇1.TDM——Time Division Multiplexing 时分复用FDM CDM2.PCM——Pulse Code Modulation 脉冲编码调制3.PCI——Peripheral Component Interconnect 周边元件连接口4.IDE——Integrated Drive Electronics 集成驱动器电路5.AGP——Accelerated Graphic Port 加速图形接口B——Universal Serial Bus通用串行接口7.HDL——Hardware Description Language 硬件描述语言8.PLD——Programmable Logic Device 可编程逻辑器件9.FPGA——Field Programmable Gate Array 现场可编程门阵列10.ASIC——Application—Specific Integrated Circuit专用集成电路11.DSP——Digital Signal Processor 数字信号处理器12.SoC——System-on-Chip 片上系统13.Learnning curve 学习曲线14.IEEE——Institute of Electrical and Electrics Engineers电气与电子工程师学会15.sample and hold circuit 采样与保持电路16.price/performance ratio 性能价格比17.harvard architecture 哈佛结构18.looping scheme 循环机制19.FFT——Fast Fourier transform 快速傅里叶变换20.PCB——Printed Circuit Board 印刷电路板21.SPS——Sample Per Second 每秒样本数22.block diagram 方框图23.Dolby Stereo 杜比立体声24.transmission bandwidth 传输带宽25.signal-to-noise ratio 信噪比汉译英句子1."信道"这个术语通常是指频分多址系统中的一个频率，时分多址系统中的一个时隙，码分多址系统中的一个代码或混合系统中的频率，时隙，代码中的某中组合。
电子信息专业英语——13+unit+6+Electronic+Communication
Unit 6 Electronic Communications
4. Bandwidth and Information Capacity The two most significant limitations on the performance of a communications system are noise and bandwidth.
带宽与信息容量
Unit 6 Electronic Communications
In recent years, transistors and linear integrated circuits have simplified the design of electronic communications circuits, thus allowing for miniaturization, improved performance and reliability, and reduced overall costs.
(13) 国际电信联盟
(14)
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Unit 6 Electronic Communications
3. Answer the following questions. (1) When and by whom was the first electronic communications system developed? (2) What is the first amplifying device for electrical signals? (3) What systems are included in modern electronic communications systems? (4) What’s the difference between analog signal, discrete signal and digital signal? (5) Could you state Hartley’s law and Shannon’s formula?
(完整版)电子信息专业英语复习资料
电子信息专业英语复习资料一、基本术语（英译汉）1.probe探针2.real time operational system 实时操作系统3.debugger 调试器4.sourse code 源代码5.software radio wireless LAN 软件无线电网络6.base station 基站7.top-down approach 自顶向下分析法8.variable 变量9.data compress 数据压缩10.signal conditioning circuit 信号调理电路11.Chebyshev Type Ⅰfilter 切比雪夫Ⅰ型滤波器12.vertical resolution 垂直分辨率13.device driver 设备驱动piler 编译器15.template 模板16.concurrent process 并发进程17.object recognition 目标识别18.Discrete Time Fourier Transform 离散傅立叶变换bined circuit 组合逻辑电路20.impedance transform 阻抗变换器21.voltage source 电压源22.passive component 无源器件23.quality factor 品质因数24.unit-impulse response 单位脉冲响应25.noise origin 噪声源26.Domino effect 多米诺效应27.output load 输出负载28.cordless phone 无绳电话29.Antenna 天线30.harmonic interference 谐波干涉31.Parallel Resonant 并联谐振32.voltage control oscillator 压控振荡器33.adaptive delta modulation 自适应增量调制34.amplitude modulation 调幅二、缩略语（写出全称）1.LSI：large scale integration2.PMOS：p-type metal-oxide semiconductor3.CT：cycle threshold4.MRI：magnetic resonance imaging5.ROM：read-only memory6.DRAM：dynamic random access memory7.TCXO：temperature compensated X'tal (crystal) OscillatorB：Universal Serial Bus9.DCT：discrete cosine transform10.DC：direct current11.CD：Compact Disc12.ASIC：application-specific integrated circuit13.MPEG：Moving Picture Experts Group14.ASSP：application-specific standard product15.EEPROM：electrically erasable programmable read-only memory16.GBW：gain band width17.PLD：programmable-logic device18.RTL：resistor transistor logic19.IP：intellectual property20.FPGA：field-programmable gate array21.CAD：computer-aided design22.MAC：multiply-accmulate23.GSM：Global System for Mobile communications24.CDMA：code division multiple access25.EDA：electronic-design automation26.HDL：hardware-description language27.OS：operating system28.PCB：printed-circuit board29.CMOS：complementary metal-oxide semiconductor30.AC：alternating current31.SRAM：static random-access memory32.PLL：phase-locked loop三、翻译（英译汉+汉译英）1.Bode presented a log technique that transformed the intensely mathematical process of calculating a feedback system's stability into graphical analysis that was simple and perceptive.伯德采用的是一种对数方法——将分析反馈系统稳定性的数学过程转换为简单又好理解的图形化分析。
电子信息专业英语复习题
1)As the voltage varies with time, the displacement of charge also varies with time, causing what is known as the displacement current. 当电压随时间的变化、位移电荷也随时间的变化而变化,造成所谓的位移电流。
2）The device capable of doing this is called a capacitor. The ability of a capacitor to store electrical energy is termed capacitance.该装置能做这项被称为电容。
电容器的能力储存电能被称为电容。
3）Resistance is the capacity of materials to impede the flow of current or, more specifically, the flow of electric charge.电阻是材料的能力来阻碍电流的流动,或者更确切地说,电荷的流动。
4）Second, a current cannot change instantaneously in an inductor, that is, the current cannot change by a finite amount in zero time.第二,电流不能改变瞬间在一个电感,也就是说,当前无法改变由有限零时间。
5）Inductance is the property of oppsing any change of a current flowing through a coil.电感的属性相对任何一个线圈通过电流的变化。
Oppsing:adj. 反对的；相对的；对面的| v. 反对6. Note from Eq(1.4) that the voltage across the terminals of an inductor is proportional to the time rate of change of the current inthe inductor.注意从式(1.4)的电压,一个电感的连接端子是成正比的变率的电感电流。
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电子信息专业英语复习资料一、基本术语（英译汉）1.probe探针2.real time operational system 实时操作系统3.debugger 调试器4.sourse code 源代码5.software radio wireless LAN 软件无线电网络6.base station 基站7.top-down approach 自顶向下分析法8.variable 变量9.data compress 数据压缩10.signal conditioning circuit 信号调理电路11.Chebyshev Type Ⅰfilter 切比雪夫Ⅰ型滤波器12.vertical resolution 垂直分辨率13.device driver 设备驱动piler 编译器15.template 模板16.concurrent process 并发进程17.object recognition 目标识别18.Discrete Time Fourier Transform 离散傅立叶变换bined circuit 组合逻辑电路20.impedance transform 阻抗变换器21.voltage source 电压源22.passive component 无源器件23.quality factor 品质因数24.unit-impulse response 单位脉冲响应25.noise origin 噪声源26.Domino effect 多米诺效应27.output load 输出负载28.cordless phone 无绳电话29.Antenna 天线30.harmonic interference 谐波干涉31.Parallel Resonant 并联谐振32.voltage control oscillator 压控振荡器33.adaptive delta modulation 自适应增量调制34.amplitude modulation 调幅二、缩略语（写出全称）1.LSI：large scale integration2.PMOS：p-type metal-oxide semiconductor3.CT：cycle threshold4.MRI：magnetic resonance imaging5.ROM：read-only memory6.DRAM：dynamic random access memory7.TCXO：temperature compensated X'tal (crystal) OscillatorB：Universal Serial Bus9.DCT：discrete cosine transform10.DC：direct current11.CD：Compact Disc12.ASIC：application-specific integrated circuit13.MPEG：Moving Picture Experts Group14.ASSP：application-specific standard product15.EEPROM：electrically erasable programmable read-only memory16.GBW：gain band width17.PLD：programmable-logic device18.RTL：resistor transistor logic19.IP：intellectual property20.FPGA：field-programmable gate array21.CAD：computer-aided design 22.MAC：multiply-accmulate23.GSM：Global System for Mobile communications 24.CDMA：code division multiple access25.EDA：electronic-design automation26.HDL：hardware-description language27.OS：operating system28.PCB：printed-circuit board29.CMOS：complementary metal-oxide semiconductor30.AC：alternating current31.SRAM：static random-access memory32.PLL：phase-locked loop三、翻译（英译汉+汉译英）1.Bode presented a log technique that transformed the intensely mathematical process of calculating a feedback system's stability into graphical analysis that was simple and perceptive.伯德采用的是一种对数方法——将分析反馈系统稳定性的数学过程转换为简单又好理解的图形化分析。
2.Jitter can be defined as the deviations in s clock's output transitions from their ideal positions.The deviation can either be leading or lagging the ideal position.“抖动”被定义为始终输出的状态转换位置偏离了理想位置。
这种偏离可能超前于理想位置，也可能滞后于理想位置。
3.The cellular design increases the system capacity by at least an order of magnitude.蜂窝设计将系统容量至少提高了一个数量级，蜂窝越小、提高量就越大。
4.A register is s set of flip-flops in parallel.Typically a register is 8,16,32 or 64 bits wide.Often a register is used to hold data,address pointers,etc.A register is volatile and very fast just like the flip-flop.寄存器是一组并行触发器。
寄存器的典型数据宽度为8位、16位、32位或者64位。
寄存器常用于保存数据、地址指针等。
和触发器一样，寄存器也有“易失的”，而且速度很快。
5.①Write a specification..②If necessary,partition the design into smaller parts and write a specification for each part..③From the specification draw a state machine chart.This shows each state of the system and the inputconditions that cause a change of state,together with the outputs in each state.①写出设计规格。
②如果需要的话，将设计分解为若干个小部分，并为每一部分写出设计规格。
③根据设计规格，画出状态机转换图。
该图包含系统中的每一个状态、引起状态变化的输入条件和每个状态的输出。
6.As digital applications increase analog application also increase because the predominant,supply of data and interface applications in the real world and the real world is a analog world.由于数字应用，增加模拟的应用也增加，因为，在现实世界和现实世界的数据以及应用程序界面主要供应一个模拟的世界。
7.Theoretically,992 channels can be supported in each cell,but many of them are not available ,to avoid frequency conflicts with neighboring cells.理论上讲，每个蜂窝小区可以支持992个信道；但为了避免和邻近蜂窝小区发生频率冲突，许多信道并不能使用。
8.On a D-AMPS mobile phone,the voice signal picked up by the microphone is digitized and compressed using a model that is more sophisticated than the delta modulation and predictive encoding schemes.在D-AMPS移动电话上，语音信号由麦克风拾取之后，先对其进行数字化，然后要使用比“增量调制”和“预测编码”更为复杂的模型进行压缩。
9.Most digital systems are sequential,that is they have states,and the outputs depend on the present state.数字系统大多是“时序的”，即系统存在各种“状态”，输出取决于“现态”。
10.ASIC is the abbreviation of Application Specific Integrated Circuit.This denotes an integrated circuit that is fully customized to the requirements of a specific application.ASIC就是专用集成电路的缩写。
它是一种为满足特定应用需求而定制的集成电路。
11.This process begins by converting each digital code into an analog voltage that is proportional in size to the number represented by the code.首先，将码字转换为和码字所代表数字的大小成正比的模拟电压。