电子与通信技术专业英语(第4版)Unit 4 lesson 21
- 格式：ppt
- 大小：3.40 MB
- 文档页数：13
文档推荐
-
通信工程专业外语 unit13原文与翻译页数:5
-
通信工程专业英语词汇1页数:25
-
《电子与通信技术专业英语》UnitⅢ-16页数:49
-
通信工程专业英语的-缩写页数:8
-
通信工程专业英语Unit9：WDM.ppt页数:41
下载文档原格式
合集下载
电子与通信技术专业英语Unit IV-5
Lesson 23 2D Bar Code
Barcodes are a combination of dark and light lines of variable widths. The dark lines are most commonly termed as bars and the light bands as spaces. The elements ( bars and spaces ) of these barcodes must be consistent and proportional thickness and thinness. What this means is that if the widest elements of the barcode can be as thick as a pencil or a credit card but the thinness of the thin elements has to be in proportion to the thick elements.
Chinese Translation of Texts
Barcodes are the easiest and the cheapest way of automatic data collection. i.e. Instead of an operator reading and punching the product codes by a keyboard at a retail counter, reading a barcode reads the data as well as enters the data into the host system. Thus making operations faster and efficient by reducing human errors.
Barcodes are a combination of dark and light lines of variable widths. The dark lines are most commonly termed as bars and the light bands as spaces. The elements ( bars and spaces ) of these barcodes must be consistent and proportional thickness and thinness. What this means is that if the widest elements of the barcode can be as thick as a pencil or a credit card but the thinness of the thin elements has to be in proportion to the thick elements.
Chinese Translation of Texts
Barcodes are the easiest and the cheapest way of automatic data collection. i.e. Instead of an operator reading and punching the product codes by a keyboard at a retail counter, reading a barcode reads the data as well as enters the data into the host system. Thus making operations faster and efficient by reducing human errors.
Unit4 lesson 21 Cinema and Park(说课稿)-2022-2023学年英语
Unit4 lesson 21 Cinema and Park（说课稿）一、教学背景本教学设计是针对2022-2023学年英语四年级上册-冀教版（三起）的学科教学，本篇主要讲解的是第四单元中的第二十一课《Cinema and Park》。
在四年级学生的英语学习中，学生已经初步了解了词汇和基本语法。
本课是此单元中的最后一课，需要让学生通过讲授电影院和公园的相关知识，从而帮助学生巩固和复习此单元学习的基础知识，使学生的英语水平得到更大的提高。
二、教学目标1.语言知识1.学习并掌握电影院和公园的相关词汇。
2.学习并运用简单的问答句及敬语。
3.阅读并理解短文中的内容。
2.学习策略1.培养学生主动学习的能力2.提高学生的学习兴趣和积极性3.情感态度1.通过本课程学习，增强学生对文化知识的了解和兴趣2.培养学生关注和照顾环境的意识。
三、教学内容和步骤1.教学内容1.词汇：cinema, park, ticket, play, movie, garden, playground, restaurant, sky2.语法：简单问答句及敬语的运用3.阅读理解：阅读一篇短文，并回答问题2.教学步骤（1）导入新课引导学生回顾所学的单词和基础语法。
（2）呈现新课教师通过黑板或电子板书的形式向学生呈现新的单词，建立新单词的概念，引导学生掌握相关知识。
（3）跟读新课教师朗读新单词及相应的句子，并让学生跟读，使学生做到听说读，三者结合。
（4）练习与巩固通过针对性的问答和其他交流方式，引导学生灵活运用所学知识点。
（5）阅读理解教师朗读短文，引导学生仔细阅读，帮助学生通过回答问题来理解短文。
（6）总结教师让学生梳理本节课学习的内容，形成知识框架，巩固所学知识。
四、教学方法1.形成对比教学法2.多媒体互动教学法3.小组合作探究法五、教学评价教师在教学中，可以通过观察学生的学习情况、及时进行回应、针对性的教学评估，从而促进教学效果的提高。
电子信息类专业英语 unit 4 Microelectronics
physicist J. Ambrose Fleming, allowing the change of alternating current into a direct one-way signal.（二极管） ❖ 1906: First electronic triode vacuum tube is built by American electrical engineer Lee De Forest, allowing signals to be controlled and amplified. Technology of electronics is born. （三极管） ❖ Late 1940‘s: The Transistor.（晶体管） ❖ 1947: The point-contact bipolar transistor is invented by Bell Lab‘s Bardeen, Shockley, and Brattain.（点接触双极晶体管） ❖ 1951: Junction field-effect transistor (JFET) is invented.（结型 场效应管） ❖ 1952: Single-crystal silicon is fabricated.（单晶硅） ❖ 1954: Oxide masking process is developed.（氧化模处理）
❖ 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.
❖ 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.
电子与通信技术专业英语Unit1
b. is a passive electronic component that stores electric charge.
New word
Notes
Exercises
Translation
Vocabulary
Exercises:
PART
1. Write T(True) or F(False) beside the following statements about the text. a. One symbol represents a type of component. b. Resistors are damaged by heat when soldering. c. Capacitors are not often used in filter circuits. d. Both capacitor and inductor are passive electronic component. e. Inductor stores electric charge. f. Diodes allow electricity to flow either one direction. g. Diodes also are called valves. h. The symbol of NPN and PNP transistors is same. i. ICs are complex circuits which have been etched onto tiny chips of semiconductor. j. LEDs is one type of diodes.
e. field 5. It changes polarity periodically.
电子与通信技术专业英语UnitIV
电子与通信技术专业英语unitiv xx年xx月xx日CATALOGUE 目录•电子与通信技术专业英语概述•电子与通信技术专业英语词汇•电子与通信技术专业英语语法及翻译技巧•电子与通信技术专业英语阅读与写作•电子与通信技术专业英语的听力和口语训练•电子与通信技术专业英语的沟通与应用01电子与通信技术专业英语概述电子与通信技术专业英语是指应用于电子与通信技术领域的专业英语，具有特定的词汇、语法和表达方式。
电子与通信技术专业英语的特点包括：缩略语和专用词汇使用广泛、科技文献常用被动语态、复杂长句和从句常见以及图表和图片解释配合文字说明等。
定义与特点电子与通信技术专业英语的历史可以追溯到20世纪初，当时电信技术的发展推动了电信英语的发展。
进入21世纪后，随着互联网、移动通信、卫星通信等技术的迅猛发展，电子与通信技术专业英语得到了广泛应用和普及。
历史与发展电子与通信技术专业英语的应用场景包括：电子与通信设备的研发、生产、维护、技术交流以及相关技术文档的编写等。
电子与通信技术专业英语在跨国科技交流、技术引进与合作、国际标准制定等方面发挥着重要作用，对技术人员的专业素养和国际视野有着重要影响。
电子与通信技术专业英语的应用场景与作用02电子与通信技术专业英语词汇电子元器件词汇Electromotive force（电动势）Current（电流）Insulator（绝缘体）Resistor（电阻）Voltage（电压）Conductor（导体）010*********通信技术词汇Demodulation（解调）Modulation（调制）Radio wave（无线电波）Antenna（天线）Microwave（微波）ASCII（美国信息交换标准代码）CPU（中央处理器）DOS（磁盘操作系统）GPS（全球定位系统）IBM（国际商业机器公司）电子与通信技术专业英语缩略语03电子与通信技术专业英语语法及翻译技巧1电子与通信技术专业英语的语法特点23电子与通信技术专业英语中常使用一般现在时和被动语态，强调客观陈述和事实。
电子与通信工程专业英语Unit 21
许多新的卫星(电视)系统以及DVD，是采用可以提供十分清晰图像的数字编码 机制。这种系统中，数字信息被转换成模拟格式，以便显示在模拟电视机上。与 VHS式图像相比，这种图像很清晰，但如果不把这些图像转换成模拟格式，图像 将会更加清晰。
There is now a big push underway to convert all TV sets from analog to digital, so that digital signals drive your TV set directly.
Digital Television & Liquid Crystal Display
Translation Reading More Translating skills Text
Digital Television & Liquid Crystal Display
1. Digital TV The horizontal resolution is something like 500 dots for a color analog TV set. This level of resolution was amazing 50 years ago, but today it is rather passe. The lowest resolution computer monitor that anyone uses today has 640×480 pixels, and most people use a resolution like 800×600 or 1024×768. We have grown comfortable with the great clarity and solidity of a computer display, and analog TV technology pales by comparison.
There is now a big push underway to convert all TV sets from analog to digital, so that digital signals drive your TV set directly.
Digital Television & Liquid Crystal Display
Translation Reading More Translating skills Text
Digital Television & Liquid Crystal Display
1. Digital TV The horizontal resolution is something like 500 dots for a color analog TV set. This level of resolution was amazing 50 years ago, but today it is rather passe. The lowest resolution computer monitor that anyone uses today has 640×480 pixels, and most people use a resolution like 800×600 or 1024×768. We have grown comfortable with the great clarity and solidity of a computer display, and analog TV technology pales by comparison.
电子信息工程专业英语教程(第四版)Lesson 4 Operation Amplifiers摘要
本文的着重介绍了运算放大器。
Harry Black为解决放大器的增益稳定性而提出负反馈的概念到早期运算放大器在模拟计算器中的巨大作用，晶体管的出现大大减小了运算放大器的体积，集成运放在模拟应用中有着巨大的作用。
可靠稳定。
关键词：运算放大器、负反馈、晶体管、集成运放
The article focuses on the operational amplifiers. In this paper, we canfind that the op amps was born on the daywhen Harry Black put forward the concept of negative feedbackin order to solve the problem of the gain’s instability.It played a great role in the early phase’s development of the analog computer, which became popular until the emergence of the transistor. The IC op amps showed up as soon as the transistor greatly reduced the volume of operational amplifiers. To this day, the op amp still has a strong vitality in the areas of analog design.
Key words:
op ampstransistornegative feedback analog circuitry。
电子与通信技术专业英语第4版Unit 4 Reading Material
Today, computer vision is extensively used in non-industrial fields as well, for example, for identifying fingerprints or facial features of a suspect, distinguishing counterfeit notes and forged paintings, analyzing medical images and photographs taken by satellites, etc.
One of the most importance of these is animation, the capability to have moving images on your screen. Animation is tightly tied in with another concept called desktop video—actually creating and manipulating video images, to produce in-house presentations, rough drafts of commercial videos, or training products.
PART
20. Computer Vision
as "template matching". One by one, the templates are checked against the binary ion representing the scene. Once a match occurs, an object is identified. The template matching process continues until all possible objects in the scene have been identified, otherwise it fails (as shown in Fig.R20-2).
One of the most importance of these is animation, the capability to have moving images on your screen. Animation is tightly tied in with another concept called desktop video—actually creating and manipulating video images, to produce in-house presentations, rough drafts of commercial videos, or training products.
PART
20. Computer Vision
as "template matching". One by one, the templates are checked against the binary ion representing the scene. Once a match occurs, an object is identified. The template matching process continues until all possible objects in the scene have been identified, otherwise it fails (as shown in Fig.R20-2).
Unit 4 Lesson 21 My Favorite Food (教案)-2022-2023学年
Unit 4 Lesson 21 My Favorite Food （教案）课程目标本课程旨在帮助学生学习如下内容：•学生能够听懂、阅读和使用有关食物的词汇。
•学生能够运用所学知识，表达自己喜欢的食物并询问他人的喜好。
•学生能够进行简单的口头表达和书面交流，讲述自己的喜好和观点。
教学重点•掌握有关食物的词汇。
•了解并掌握用英语描述食物的句式。
•学会表达自己喜欢的食物并询问他人喜好。
教学难点•学生能否准确并熟练地描述自己喜欢的食物并对比其他同学的观点。
•学生能否构建合理的句子表述自己的观点和喜好。
教学准备•教师准备教学PPT，注重配图，增加教学趣味。
•准备相关的课件和食物图片，并通过互联网做好相关的音频准备。
教学过程Step 1 导入新课•通过口头提问，了解学生在家中的饮食习惯，以及他们最喜欢的食物是什么。
Step 2 学习词汇•展示有关食物的图片，让学生看图说话，掌握与食物相关的单词和短语。
Step 3 句型学习•通过简单的对比，讲解有关喜欢和不喜欢的表达方式。
•运用有关的句子模板，让学生模仿构建表述自己喜欢的食物和不喜欢的食物的句子。
Step 4 话题讨论•通过图片展示，让学生感受不同地域及国家的饮食习惯和文化传承，引导学生讨论并整理出主要观点。
•利用相关的练习和小游戏，帮助学生加深对食物相关词汇和句型的掌握和理解。
Step 5 总结和面对突发情况的讨论•小测验并总结学习的知识点，帮助学生检查所学习内容的掌握情况。
•在教学过程中，提醒学生如何面对突发情况，如何向老师、同学和其他人表达自己的观点和看法，以及遭遇挫折时的应对之策。
作业设计•通过小组讨论或采访，收集学生的学习成果和观点，包括他们最喜欢的食物和对不同的饮食文化的看法。
•根据教师的要求，用英文写一篇短文，介绍自己最喜欢的食物，并阐明理由。
教学评估•学生在课堂中的表现和表态。
•学生完成的作业和口头表述的能力。
•学生综合运用所学知识，进行口头和书面表达的能力。
电子与通信技术专业英语UnitIV
现代通信技术的应用
现代通信技术广泛应用于生产、生活 各个领域，如光纤宽带网络、4G/5G 移动通信网络、卫星导航定位等。同 时，随着新兴技术的发展，现代通信 技术的应用前景也更加广阔，如物联 网在智能家居、智能交通等领域的应 用。
03
信号处理
信号的分类与性质
信号的分类
连续信号和离散信号，模拟信号和数字信号
信号的性质
确定性、周期性、平稳性
信号的调制与解调
调制技术
幅度调制、频率调制、相位调制
解调技术
直接解调、同步解调
调制解调器
调幅调制解调器、调频调制解调器、数字调制解 调器
数字信号处理
数字信号的特点
离散性、确定性、可重复性
数字信号的转换
模拟信号转换为数字信号、数字信号转换为模拟信号
数字信号处理的应用
ห้องสมุดไป่ตู้
掌握基本原理
深入理解电子和通信电路的基本原理 ，包括电路分析、电路设计、信号处 理等，为设计提供理论支撑。
注重可靠性
考虑电路的稳定性、抗干扰能力和可 靠性，确保在各种环境下都能稳定运 行。
优化资源利用
合理利用元器件和电路板空间，降低 成本，提高电路性能。
常用电子与通信电路的设计实例
模拟电路设计
如放大器、滤波器、振荡器等，需考虑元件 选择、匹配和稳定性。
数字通信系统同样由发送端、接收端和传输媒介组成。发送端负责将信息转换为数字信号 ，接收端则负责将数字信号还原为原始信息。传输媒介同样可以是无线电波、有线电缆等 。
数字通信系统的应用
数字通信系统广泛应用于数据传输、移动通信、卫星通信等领域。由于采用数字信号传输 ，它可以有效克服传输过程中的噪声和干扰，保证传输质量的稳定。
- 1、下载文档前请自行甄别文档内容的完整性，平台不提供额外的编辑、内容补充、找答案等附加服务。
- 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
- 3、如文档侵犯您的权益，请联系客服反馈,我们会尽快为您处理(人工客服工作时间：9:00-18:30)。
Lesson 21 Remote Sensing
PART
Remote sensing is the process of collecting data about objects or landscape features without coming into direct physical contact with them. Most remote sensing is performed from aircraft or satellites using instruments, which measure electromagnetic radiation (EMR) that is reflected or emitted from the terrain(as shown in Fig.21-1). In other words, remote sensing is the detection and measurement of electromagnetic energy emanating from distant objects made of various materials. This is done so that we can identify and categorize these objects by class or type, substance, and spatial distribution.
Text
New word
Notes
Exercises
Translation
Vocabulary
Exercises:
PART
1. Write T(True) or F(False) beside the following statements about the text. a. Passive systems beam artificially produced energy to a target and record the reflected component. b. Active systems detect only energy emanating naturally from an object, such as reflected sunlight or thermal infrared emissions. c. "Image-oriented" capitalizes on the pictorial aspects of the data and utilizes analysis methods which rely heavily on the generation of an image. d. "Numerical-oriented" results directly from the development of the computer and because it emphasizes the quantitative aspects of the data, treating the data abstractly as a collection of measurement. e. Using passive sensor systems—the system sends out electro-magnetic radiation towards target object (s) and measures the intensity of the return signal.
Text
New word
Notes
Exercises
Translation
Vocabulary
Notes:
PART
3.These techniques are diverse, ranging from traditional methods of visual interpretation to methods using sophisticated computer processing. 译文：这些技术是多种多样的，从传统的视觉判断的方法到复杂的计算机处理。因此，遥感的两个主要组成部分就 是数据采集和数据分析。 4.The branch first mentioned above we refer to as "image-oriented" because it capitalizes on the pictorial aspects of the data and utilizes analysis methods which rely heavily on the generation of an image. 译文：我们把前面首先提到的分支技术称为图像遥感，因为它利用图像方面的数据，采用很大程度上依赖于图像的 生成的分析方法。
Remote sensing devices can be differentiated in terms of whether they are active or passive. Active systems, such as radar and sonar, beam artificially produced energy to a target and record the reflected component. Passive systems, including the photographic camera, detect only energy emanating naturally from an object, such as reflected sunlight or thermal infrared emissions. Today, remote sensors, excluding sonar devices, are typically
captured and recorded by remote sensing systems must be analyzed by interpretive and measurement techniques in order to provide useful information about the subjects of investigation. These techniques are diverse, ranging from traditional methods of visual interpretation to methods using sophisticated computer processing. Accordingly, the two major components of remote sensing are data capture and data analysis.
（范围）从……到…… 被称为 发出，放射 空间分布 地球轨道卫星 图像遥感 产生于……，由……引起 一排，一群，一批 发送；发出
Text
New word
Notes
Exercises
Translation
Vocabulary
Notes:
PART
1.Most remote sensing is performed from aircraft or satellites using instruments, which measure electromagnetic radiation (EMR) that is reflected or emitted from the terrain. 译文：大多数遥感通过飞机或卫星完成，在这个过程中，使用仪器对从地面发射或反射电磁辐射（EMR）。 EMR ：electromagnetic radiation 电磁辐射 2.Active systems, such as radar and sonar, beam artificially produced energy to a target and record the reflected component. Passive systems, including the photographic camera, detect only energy emanating naturally from an object, such as reflected sunlight or thermal infrared emissions. 译文：有源系统，如雷达和声纳，对目标发射人为产生能量，然后记录反射的分量。无源系统，包括照相机，只检 测由对象自然反射的能量，如反射的太阳光或热红外辐射。 active systems:有源系统、主动系统 passive systems:无源系统、被动系统
Today we are acquiring earth observational data from earth-orbiting satellites, because of the wide view possible from satellite altitudes, the speed with which the satellite borne sensors travel, and the number of spectral bands used, very large quantities of data are being produced.
Text
New word
Notes
Exercises
Translation
Vocabulary
New words and phrases:
PART
Phrases and Expressions
range from…to… refer to as emanate from spatial distribution earth-orbiting satellites image-oriented result from an array of send out
PART
Remote sensing is the process of collecting data about objects or landscape features without coming into direct physical contact with them. Most remote sensing is performed from aircraft or satellites using instruments, which measure electromagnetic radiation (EMR) that is reflected or emitted from the terrain(as shown in Fig.21-1). In other words, remote sensing is the detection and measurement of electromagnetic energy emanating from distant objects made of various materials. This is done so that we can identify and categorize these objects by class or type, substance, and spatial distribution.
Text
New word
Notes
Exercises
Translation
Vocabulary
Exercises:
PART
1. Write T(True) or F(False) beside the following statements about the text. a. Passive systems beam artificially produced energy to a target and record the reflected component. b. Active systems detect only energy emanating naturally from an object, such as reflected sunlight or thermal infrared emissions. c. "Image-oriented" capitalizes on the pictorial aspects of the data and utilizes analysis methods which rely heavily on the generation of an image. d. "Numerical-oriented" results directly from the development of the computer and because it emphasizes the quantitative aspects of the data, treating the data abstractly as a collection of measurement. e. Using passive sensor systems—the system sends out electro-magnetic radiation towards target object (s) and measures the intensity of the return signal.
Text
New word
Notes
Exercises
Translation
Vocabulary
Notes:
PART
3.These techniques are diverse, ranging from traditional methods of visual interpretation to methods using sophisticated computer processing. 译文：这些技术是多种多样的，从传统的视觉判断的方法到复杂的计算机处理。因此，遥感的两个主要组成部分就 是数据采集和数据分析。 4.The branch first mentioned above we refer to as "image-oriented" because it capitalizes on the pictorial aspects of the data and utilizes analysis methods which rely heavily on the generation of an image. 译文：我们把前面首先提到的分支技术称为图像遥感，因为它利用图像方面的数据，采用很大程度上依赖于图像的 生成的分析方法。
Remote sensing devices can be differentiated in terms of whether they are active or passive. Active systems, such as radar and sonar, beam artificially produced energy to a target and record the reflected component. Passive systems, including the photographic camera, detect only energy emanating naturally from an object, such as reflected sunlight or thermal infrared emissions. Today, remote sensors, excluding sonar devices, are typically
captured and recorded by remote sensing systems must be analyzed by interpretive and measurement techniques in order to provide useful information about the subjects of investigation. These techniques are diverse, ranging from traditional methods of visual interpretation to methods using sophisticated computer processing. Accordingly, the two major components of remote sensing are data capture and data analysis.
（范围）从……到…… 被称为 发出，放射 空间分布 地球轨道卫星 图像遥感 产生于……，由……引起 一排，一群，一批 发送；发出
Text
New word
Notes
Exercises
Translation
Vocabulary
Notes:
PART
1.Most remote sensing is performed from aircraft or satellites using instruments, which measure electromagnetic radiation (EMR) that is reflected or emitted from the terrain. 译文：大多数遥感通过飞机或卫星完成，在这个过程中，使用仪器对从地面发射或反射电磁辐射（EMR）。 EMR ：electromagnetic radiation 电磁辐射 2.Active systems, such as radar and sonar, beam artificially produced energy to a target and record the reflected component. Passive systems, including the photographic camera, detect only energy emanating naturally from an object, such as reflected sunlight or thermal infrared emissions. 译文：有源系统，如雷达和声纳，对目标发射人为产生能量，然后记录反射的分量。无源系统，包括照相机，只检 测由对象自然反射的能量，如反射的太阳光或热红外辐射。 active systems:有源系统、主动系统 passive systems:无源系统、被动系统
Today we are acquiring earth observational data from earth-orbiting satellites, because of the wide view possible from satellite altitudes, the speed with which the satellite borne sensors travel, and the number of spectral bands used, very large quantities of data are being produced.
Text
New word
Notes
Exercises
Translation
Vocabulary
New words and phrases:
PART
Phrases and Expressions
range from…to… refer to as emanate from spatial distribution earth-orbiting satellites image-oriented result from an array of send out