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通信工程专业英语() Final Review 2 邓磊 [email protected] https://leideng.github.io/communication-english/ 东莞理工学院 电子工程与智能化学院 2017.12.25

通信工程专业英语 - · PDF fileLesson 17 The Mobile Telephone System ... troubleshooting 故障排除 shift register ... radio MF microwave HF

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Page 1: 通信工程专业英语 -   · PDF fileLesson 17 The Mobile Telephone System ... troubleshooting 故障排除 shift register ... radio MF microwave HF

通信工程专业英语(本)Final Review 2

邓磊

[email protected]

https://leideng.github.io/communication-english/

东莞理工学院

电子工程与智能化学院

2017.12.25

Page 2: 通信工程专业英语 -   · PDF fileLesson 17 The Mobile Telephone System ... troubleshooting 故障排除 shift register ... radio MF microwave HF

Final Exam 期末考试

□ 期末考试时间

– 2018年1月8日,19周星期一,上午10:00-12:00

□ 期末考试地点

– 6E-105

□ 期末考试复习

– 2017-12-18, 16周星期一,5-6节 (14:30-16:10)

– 2017-12-25, 17周星期一,5-6节(14:30-16:10)

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Page 3: 通信工程专业英语 -   · PDF fileLesson 17 The Mobile Telephone System ... troubleshooting 故障排除 shift register ... radio MF microwave HF

Outline

□ Lesson 13 Phase-Locked Loops

□ Lesson 15 How to Draw Schematic Diagrams

□ Lesson 16 Wireless Transmission

□ Lesson 17 The Mobile Telephone System

□ Lesson 19 Guided Transmission Media

□ Lesson 20 The Fiber Optic Communication System

□ Lesson 22 The Internet

□ Lesson 23 Third-Generation Mobile Phone Networks

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Page 4: 通信工程专业英语 -   · PDF fileLesson 17 The Mobile Telephone System ... troubleshooting 故障排除 shift register ... radio MF microwave HF

Outline

□ Lesson 13 Phase-Locked Loops

□ Lesson 15 How to Draw Schematic Diagrams

□ Lesson 16 Wireless Transmission

□ Lesson 17 The Mobile Telephone System

□ Lesson 19 Guided Transmission Media

□ Lesson 20 The Fiber Optic Communication System

□ Lesson 22 The Internet

□ Lesson 23 Third-Generation Mobile Phone Networks

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Page 5: 通信工程专业英语 -   · PDF fileLesson 17 The Mobile Telephone System ... troubleshooting 故障排除 shift register ... radio MF microwave HF

核心词汇

英文 中文 英文 中文

Phase-Locked Loop (PLL) Integrated Circuit (IC)

Voltage-Controlled Oscillator (VCO)

full-wave-rectified signal

phase detector feedback resistor

frequency synthesizer DC

amplifier

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Page 6: 通信工程专业英语 -   · PDF fileLesson 17 The Mobile Telephone System ... troubleshooting 故障排除 shift register ... radio MF microwave HF

核心词汇

英文 中文 英文 中文

锁相环 集成电路

压控振荡器 全波整流信号

鉴相器 反馈电阻

频率合成器 直流

放大器

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Page 7: 通信工程专业英语 -   · PDF fileLesson 17 The Mobile Telephone System ... troubleshooting 故障排除 shift register ... radio MF microwave HF

核心词汇

英文 中文 英文 中文

Phase-Locked Loop (PLL) 锁相环 Integrated Circuit (IC) 集成电路

Voltage-Controlled Oscillator (VCO)

压控振荡器full-wave-rectified

signal全波整流信号

phase detector 鉴相器 feedback resistor 反馈电阻

frequency synthesizer 频率合成器 DC 直流

amplifier 放大器

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Page 8: 通信工程专业英语 -   · PDF fileLesson 17 The Mobile Telephone System ... troubleshooting 故障排除 shift register ... radio MF microwave HF

核心句子

□ The phase detector is a device that compares two input frequencies, generating an output that is a measure of their phase difference (if, for example, they differ in frequency, it gives a periodic output at the difference frequency).

□ 鉴相器是这样一个设备:他比较两个输入信号的频率,然后产生一个体现两个输入信号的相位差的信号。(比如,如果两个信号有频差的话,鉴相器的输出信号是一个以此频差为频率的周期信号。)

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Page 9: 通信工程专业英语 -   · PDF fileLesson 17 The Mobile Telephone System ... troubleshooting 故障排除 shift register ... radio MF microwave HF

核心句子

□ In frequency modulation, information is encoded onto a “carrier” signal by varying its frequency proportional to the information waveform.

□ 在频率调制中,载波信号频率随着信息波形而变化,从而将信息编码到载波上。

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Page 10: 通信工程专业英语 -   · PDF fileLesson 17 The Mobile Telephone System ... troubleshooting 故障排除 shift register ... radio MF microwave HF

Outline

□ Lesson 13 Phase-Locked Loops

□ Lesson 15 How to Draw Schematic Diagrams

□ Lesson 16 Wireless Transmission

□ Lesson 17 The Mobile Telephone System

□ Lesson 19 Guided Transmission Media

□ Lesson 20 The Fiber Optic Communication System

□ Lesson 22 The Internet

□ Lesson 23 Third-Generation Mobile Phone Networks

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Page 11: 通信工程专业英语 -   · PDF fileLesson 17 The Mobile Telephone System ... troubleshooting 故障排除 shift register ... radio MF microwave HF

核心词汇

英文 中文 英文 中文

schematic counter

troubleshooting shift register

pin supply voltage

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Page 12: 通信工程专业英语 -   · PDF fileLesson 17 The Mobile Telephone System ... troubleshooting 故障排除 shift register ... radio MF microwave HF

核心词汇

英文 中文 英文 中文

电路原理图 计数器

故障排除 移位寄存器

引脚 电源电压

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Page 13: 通信工程专业英语 -   · PDF fileLesson 17 The Mobile Telephone System ... troubleshooting 故障排除 shift register ... radio MF microwave HF

核心词汇

英文 中文 英文 中文

schematic 电路原理图 counter 计数器

troubleshooting 故障排除 shift register 移位寄存器

pin 引脚 supply voltage 电源电压

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Page 14: 通信工程专业英语 -   · PDF fileLesson 17 The Mobile Telephone System ... troubleshooting 故障排除 shift register ... radio MF microwave HF

Outline

□ Lesson 13 Phase-Locked Loops

□ Lesson 15 How to Draw Schematic Diagrams

□ Lesson 16 Wireless Transmission

□ Lesson 17 The Mobile Telephone System

□ Lesson 19 Guided Transmission Media

□ Lesson 20 The Fiber Optic Communication System

□ Lesson 22 The Internet

□ Lesson 23 Third-Generation Mobile Phone Networks

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Page 15: 通信工程专业英语 -   · PDF fileLesson 17 The Mobile Telephone System ... troubleshooting 故障排除 shift register ... radio MF microwave HF

核心词汇

英文 中文 英文 中文

wireless transmission/communication

visible light

electromagnetic spectrum X-ray

wavelength LF

radio MF

microwave HF

infrared laser

ultraviolet (UV) multipath fading

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Page 16: 通信工程专业英语 -   · PDF fileLesson 17 The Mobile Telephone System ... troubleshooting 故障排除 shift register ... radio MF microwave HF

核心词汇

英文 中文 英文 中文

无线传输/通信 可见光

电磁波谱 X射线

波长 低频

无线电波 中频

微波 高频

红外线 激光

紫外线 多径衰落

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Page 17: 通信工程专业英语 -   · PDF fileLesson 17 The Mobile Telephone System ... troubleshooting 故障排除 shift register ... radio MF microwave HF

核心词汇

英文 中文 英文 中文

wireless transmission/communication

无线传输/通信 visible light 可见光

electromagnetic spectrum 电磁波谱 X-ray X射线

wavelength 波长 LF 低频

radio 无线电波 MF 中频

microwave 微波 HF 高频

infrared 红外线 laser 激光

ultraviolet (UV) 紫外线 multipath fading 多径衰落

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Page 18: 通信工程专业英语 -   · PDF fileLesson 17 The Mobile Telephone System ... troubleshooting 故障排除 shift register ... radio MF microwave HF

核心句子

□ As a rule of thumb, when 𝜆 is in meters and 𝑓is in MHz, 𝜆𝑓 ≈ 300.

□ 根据经验,当波长𝜆以米为单位,频率𝑓以兆赫兹为单位时,我们有𝜆𝑓 ≈ 300。

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Page 19: 通信工程专业英语 -   · PDF fileLesson 17 The Mobile Telephone System ... troubleshooting 故障排除 shift register ... radio MF microwave HF

核心句子

□ AM radio broadcasting uses the MF band, which is why the ground waves from Boston AM radio stations cannot be heard easily in New York.

□ 调幅无线电广播使用中频频段,因此来自波士顿调幅无线电台的地波很难在纽约收听到。

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Page 20: 通信工程专业英语 -   · PDF fileLesson 17 The Mobile Telephone System ... troubleshooting 故障排除 shift register ... radio MF microwave HF

Outline

□ Lesson 13 Phase-Locked Loops

□ Lesson 15 How to Draw Schematic Diagrams

□ Lesson 16 Wireless Transmission

□ Lesson 17 The Mobile Telephone System

□ Lesson 19 Guided Transmission Media

□ Lesson 20 The Fiber Optic Communication System

□ Lesson 22 The Internet

□ Lesson 23 Third-Generation Mobile Phone Networks

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Page 21: 通信工程专业英语 -   · PDF fileLesson 17 The Mobile Telephone System ... troubleshooting 故障排除 shift register ... radio MF microwave HF

核心词汇

英文 中文 英文 中文

overload FDD

microcell GSM

handoff/handover CDMA

base station (BS) SIM

packet-switching network

time slot

channel assignment directional antenna

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Page 22: 通信工程专业英语 -   · PDF fileLesson 17 The Mobile Telephone System ... troubleshooting 故障排除 shift register ... radio MF microwave HF

核心词汇

英文 中文 英文 中文

过载 频分双工

微蜂窝 全球移动通信系统

(越区)切换 码分多址

基站 用户身份模块

分组交换网 时隙

信道分配 定向天线

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Page 23: 通信工程专业英语 -   · PDF fileLesson 17 The Mobile Telephone System ... troubleshooting 故障排除 shift register ... radio MF microwave HF

核心词汇

英文 中文 英文 中文

overload 过载 FDD 频分双工

microcell 微蜂窝 GSM 全球移动通信系统

handoff/handover (越区)切换 CDMA 码分多址

base station (BS) 基站 SIM 用户身份模块

packet-switching network

分组交换网 time slot 时隙

channel assignment 信道分配 directional antenna 定向天线

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Page 24: 通信工程专业英语 -   · PDF fileLesson 17 The Mobile Telephone System ... troubleshooting 故障排除 shift register ... radio MF microwave HF

核心句子

□ The key idea that gives cellular systems far more capacity is the use of relatively small cells and the reuse of transmission frequencies in nearby (but not adjacent) cells.

□ 使蜂窝系统具有很大容量的关键在于使用了相对较小的蜂窝小区和在附近(但不是临近的)小区间应用频谱复用。

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Page 25: 通信工程专业英语 -   · PDF fileLesson 17 The Mobile Telephone System ... troubleshooting 故障排除 shift register ... radio MF microwave HF

核心句子

□ In an area where the number of users has grown to the point that the system is overloaded, the power can be reduced and the overloaded cells split into smaller microcells to permit more frequency reuse, as shown in Figure 17.1(b).

□ 在一个地区,如果用户数量太大以致系统过载,我们就可以通过减少传输功率并将过载小区分为更小的微蜂窝小区来实现更高的频率复用(见图17.1(b))。

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Page 26: 通信工程专业英语 -   · PDF fileLesson 17 The Mobile Telephone System ... troubleshooting 故障排除 shift register ... radio MF microwave HF

Outline

□ Lesson 13 Phase-Locked Loops

□ Lesson 15 How to Draw Schematic Diagrams

□ Lesson 16 Wireless Transmission

□ Lesson 17 The Mobile Telephone System

□ Lesson 19 Guided Transmission Media

□ Lesson 20 The Fiber Optic Communication System

□ Lesson 22 The Internet

□ Lesson 23 Third-Generation Mobile Phone Networks

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Page 27: 通信工程专业英语 -   · PDF fileLesson 17 The Mobile Telephone System ... troubleshooting 故障排除 shift register ... radio MF microwave HF

核心词汇

英文 中文 英文 中文

guided medium refraction

twisted pair reflection

coaxial cable transmission medium

fiber optic LED

delay conductor

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Page 28: 通信工程专业英语 -   · PDF fileLesson 17 The Mobile Telephone System ... troubleshooting 故障排除 shift register ... radio MF microwave HF

核心词汇

英文 中文 英文 中文

导向介质 折射

双绞线 反射

同轴电缆 传输介质

光纤 发光二极管

时延 导体

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Page 29: 通信工程专业英语 -   · PDF fileLesson 17 The Mobile Telephone System ... troubleshooting 故障排除 shift register ... radio MF microwave HF

核心词汇

英文 中文 英文 中文

guided medium 导向介质 refraction 折射

twisted pair 双绞线 reflection 反射

coaxial cable 同轴电缆 transmission medium 传输介质

fiber optic 光纤 LED 发光二极管

delay 时延 conductor 导体

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Page 30: 通信工程专业英语 -   · PDF fileLesson 17 The Mobile Telephone System ... troubleshooting 故障排除 shift register ... radio MF microwave HF

核心句子

□ Coaxial cables used to be widely used within the telephone system for long-distance lines but have now largely been replaced by fiber optics on long-haul routes.

□ 同轴电缆曾经广泛用于长途线路电话系统中。不过,如今大部分都被光纤替代了。

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Page 31: 通信工程专业英语 -   · PDF fileLesson 17 The Mobile Telephone System ... troubleshooting 故障排除 shift register ... radio MF microwave HF

核心句子

□ One thousand twisted pairs 1 km long weight 8000 kg. Two fibers have more capacity and weight only 100 kg, which greatly reduces the need for expensive mechanical support systems that must be maintained.

□ 一公里长的1000对双绞线重达8000kg。然而,两根光纤就能拥有更多的容量,且重量只有100kg。这就大大减少了对必须维护的昂贵机械支持系统的需求。

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Page 32: 通信工程专业英语 -   · PDF fileLesson 17 The Mobile Telephone System ... troubleshooting 故障排除 shift register ... radio MF microwave HF

Outline

□ Lesson 13 Phase-Locked Loops

□ Lesson 15 How to Draw Schematic Diagrams

□ Lesson 16 Wireless Transmission

□ Lesson 17 The Mobile Telephone System

□ Lesson 19 Guided Transmission Media

□ Lesson 20 The Fiber Optic Communication System

□ Lesson 22 The Internet

□ Lesson 23 Third-Generation Mobile Phone Networks

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Page 33: 通信工程专业英语 -   · PDF fileLesson 17 The Mobile Telephone System ... troubleshooting 故障排除 shift register ... radio MF microwave HF

核心词汇

英文 中文 英文 中文

carrier source transmission loss

channel coupler decision circuit

photodetector BER

satellite communication semiconductor

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Page 34: 通信工程专业英语 -   · PDF fileLesson 17 The Mobile Telephone System ... troubleshooting 故障排除 shift register ... radio MF microwave HF

核心词汇

英文 中文 英文 中文

载波信号源 传输损耗

信道耦合器 判决电路

光电检测器 误码率

卫星通信 半导体

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Page 35: 通信工程专业英语 -   · PDF fileLesson 17 The Mobile Telephone System ... troubleshooting 故障排除 shift register ... radio MF microwave HF

核心词汇

英文 中文 英文 中文

carrier source 载波信号源 transmission loss 传输损耗

channel coupler 信道耦合器 decision circuit 判决电路

photodetector 光电检测器 BER 误码率

satellite communication 卫星通信 semiconductor 半导体

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Page 36: 通信工程专业英语 -   · PDF fileLesson 17 The Mobile Telephone System ... troubleshooting 故障排除 shift register ... radio MF microwave HF

核心句子

□ A brief discussion of each block in this figure will give us a good feel for the main elements of a communication system.

□ 对图中各模块的简要讨论有助于理解通信系统的主要元素。

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Page 37: 通信工程专业英语 -   · PDF fileLesson 17 The Mobile Telephone System ... troubleshooting 故障排除 shift register ... radio MF microwave HF

核心句子

□ Examples include fibers used in the ground portion of a satellite communications system and fibers used in relaying cable television signals.

□ 典型例子包括用于卫星通信系统中地面部分的光纤链路和用于有线电视信号中继的光纤链路。

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Page 38: 通信工程专业英语 -   · PDF fileLesson 17 The Mobile Telephone System ... troubleshooting 故障排除 shift register ... radio MF microwave HF

Outline

□ Lesson 13 Phase-Locked Loops

□ Lesson 15 How to Draw Schematic Diagrams

□ Lesson 16 Wireless Transmission

□ Lesson 17 The Mobile Telephone System

□ Lesson 19 Guided Transmission Media

□ Lesson 20 The Fiber Optic Communication System

□ Lesson 22 The Internet

□ Lesson 23 Third-Generation Mobile Phone Networks

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Page 39: 通信工程专业英语 -   · PDF fileLesson 17 The Mobile Telephone System ... troubleshooting 故障排除 shift register ... radio MF microwave HF

核心词汇

英文 中文 英文 中文

Internet packet

ISP router

modem protocol

FTTH firewall

backbone intranet

host virtual machine

data center DSL

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Page 40: 通信工程专业英语 -   · PDF fileLesson 17 The Mobile Telephone System ... troubleshooting 故障排除 shift register ... radio MF microwave HF

核心词汇

英文 中文 英文 中文

互联网,因特网 数据包

互联网服务提供商 路由器

调制解调器 协议

光纤到户 防火墙

主干网,骨干网 内联网

主机 虚拟机

数据中心 数字用户线

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Page 41: 通信工程专业英语 -   · PDF fileLesson 17 The Mobile Telephone System ... troubleshooting 故障排除 shift register ... radio MF microwave HF

核心词汇

英文 中文 英文 中文

Internet 互联网,因特网 packet 数据包

ISP 互联网服务提供商 router 路由器

modem 调制解调器 protocol 协议

FTTH 光纤到户 firewall 防火墙

backbone 主干网,骨干网 intranet 内联网

host 主机 virtual machine 虚拟机

data center 数据中心 DSL 数字用户线

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Page 42: 通信工程专业英语 -   · PDF fileLesson 17 The Mobile Telephone System ... troubleshooting 故障排除 shift register ... radio MF microwave HF

核心句子

□ To joint the Internet, the computer is connected to an Internet Service Provider, or simply ISP, from who the user purchases Internet access or connectivity.

□ 为了加入互联网,计算机要连接到一个互联网提供商(简称ISP)。互联网用户从ISP购买互联网接入/连接服务。

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Page 43: 通信工程专业英语 -   · PDF fileLesson 17 The Mobile Telephone System ... troubleshooting 故障排除 shift register ... radio MF microwave HF

核心句子

□ Despite these difficulties, it makes sense to regard such machines as being on the Internet while they are connected to their ISPs.

□ 尽管有这些困难,当这些机器连接到其ISP

上时,将他们视为“在互联网上”是完全合理的。

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Page 44: 通信工程专业英语 -   · PDF fileLesson 17 The Mobile Telephone System ... troubleshooting 故障排除 shift register ... radio MF microwave HF

Outline

□ Lesson 13 Phase-Locked Loops

□ Lesson 15 How to Draw Schematic Diagrams

□ Lesson 16 Wireless Transmission

□ Lesson 17 The Mobile Telephone System

□ Lesson 19 Guided Transmission Media

□ Lesson 20 The Fiber Optic Communication System

□ Lesson 22 The Internet

□ Lesson 23 Third-Generation Mobile Phone Networks

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Page 45: 通信工程专业英语 -   · PDF fileLesson 17 The Mobile Telephone System ... troubleshooting 故障排除 shift register ... radio MF microwave HF

核心词汇

英文 中文 英文 中文

frequency reuse authentication

UMTS authorization

air interface quality of service (QoS)

hard handover data rate

soft handover LTE

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Page 46: 通信工程专业英语 -   · PDF fileLesson 17 The Mobile Telephone System ... troubleshooting 故障排除 shift register ... radio MF microwave HF

核心词汇

英文 中文 英文 中文

频率复用 认证

通用移动通信系统 授权

空中接口 服务质量

硬切换 数据率

软切换 长期演进

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Page 47: 通信工程专业英语 -   · PDF fileLesson 17 The Mobile Telephone System ... troubleshooting 故障排除 shift register ... radio MF microwave HF

核心词汇

英文 中文 英文 中文

frequency reuse 频率复用 authentication 认证

UMTS 通用移动通信系统 authorization 授权

air interface 空中接口 quality of service (QoS) 服务质量

hard handover 硬切换 data rate 数据率

soft handover 软切换 LTE 长期演进

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Page 48: 通信工程专业英语 -   · PDF fileLesson 17 The Mobile Telephone System ... troubleshooting 故障排除 shift register ... radio MF microwave HF

核心句子

□ The term (air interface) is a fancy name for the radio communication protocol that is used over the air between the mobile device and cellular base station.

□ 空中接口这个词是对用于移动用户和蜂窝小区之间的无线通信协议的一个炫酷称呼。

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Page 49: 通信工程专业英语 -   · PDF fileLesson 17 The Mobile Telephone System ... troubleshooting 故障排除 shift register ... radio MF microwave HF

核心句子

□ This way of doing a handover is called a soft handover to distinguish it from a hard handover, in which the mobile disconnects from the old base station before connecting to the new one.

□ 这种切换方式叫做软切换,以区分于硬切换。在硬切换中,移动端在连接到一个新的基站前必须和旧基站断开。

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Page 50: 通信工程专业英语 -   · PDF fileLesson 17 The Mobile Telephone System ... troubleshooting 故障排除 shift register ... radio MF microwave HF

Thank You!

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