出版時間:2009-8 出版社:北京郵電大學(xué)出版社 作者:張敏瑞,張紅 編著 頁數(shù):322
Tag標(biāo)簽:無
前言
本書自2003年12月首次出版后,得到了廣大師生的厚愛,平均每年重印一次。但是,為了更好地滿足廣大讀者的需求,使其更方便地進(jìn)行科技英語的教學(xué),作者認(rèn)為有必要對原書進(jìn)行適當(dāng)調(diào)整和修改。本次修訂的主要內(nèi)容如下。 1.課文內(nèi)容:去掉了ATM、網(wǎng)絡(luò)管理、無線網(wǎng)絡(luò)安全等內(nèi)容,增加了有關(guān)通信設(shè)備,交換技術(shù)、信息安全的內(nèi)容。從技術(shù)的角度講,內(nèi)容更新了,視野更廣了。 2.補(bǔ)充學(xué)習(xí)材料:增加了“關(guān)于數(shù)的英文讀法”和“常見數(shù)學(xué)表達(dá)式的讀法”兩篇;大幅修改了“科技論文英文摘要寫作”。新增的兩篇學(xué)習(xí)材料主要解決科技學(xué)術(shù)交流中的實(shí)際困難,這是本次修訂的一大亮點(diǎn)?! ?.詞匯方面:對絕大部分原有單元的生詞、短語和部分注釋進(jìn)行了調(diào)整和修改。刪去了生詞和短語表中重復(fù)的詞匯,所以建議最好按順序?qū)W習(xí)。但考慮到?jīng)]有時間學(xué)習(xí)“Reading”的情況,“Reading”中出現(xiàn)的詞匯仍保留在后續(xù)課文的詞匯表中?! ?.新增附錄:在本書最后增加了“詞匯索引”,包括書中“TEXT”和“Reading”中列出的所有生詞和短語,并按字母順序排序,便于廣大師生在備課和復(fù)習(xí)時查閱?! ?.格式方面:課文標(biāo)題、字母大小寫等格式按英文習(xí)慣進(jìn)行了統(tǒng)一調(diào)整?! ∥迥陙?,作者收到了許多師生索要教學(xué)課件和課文譯文的電子郵件。首先作者對這些熱心讀者和其他所有關(guān)心和支持本書的讀者表示感謝!需要說明兩點(diǎn):第一,原書的教學(xué)課件在北京郵電大學(xué)出版社,修訂版的教學(xué)課件也將于2009年9月前提交,需要者可向出版社索要;第二,我們沒有做詳細(xì)的課文譯文,因?yàn)槎嗄甑慕虒W(xué)經(jīng)驗(yàn)告訴我們,詳細(xì)譯文會使部分學(xué)生失去聽課興趣,從而大大影響教學(xué)質(zhì)量。但是,為了方便部分年輕教師備課,我們正在考慮編寫本書的教輔和其他相關(guān)材料。
內(nèi)容概要
本書是為高等院校通信與電子信息類專業(yè)學(xué)生編寫的專業(yè)英語教材。課文和閱讀材料的內(nèi)容均選自國外經(jīng)典英文原著、國外高等院校的教科書以及國際著名期刊與雜志等。全書按照通信與信息處理基礎(chǔ)、傳輸技術(shù)、信號處理、傳輸系統(tǒng)、交換技術(shù)、Internet與信息安全這一主線展開,涵蓋了通信與電子信息類專業(yè)本科生課程的絕大部分內(nèi)容?! ”緯卜?8個單元,每單元包含課文、難句注釋、練習(xí)、閱讀材料以及詞匯與練習(xí),每篇課文后都配有標(biāo)注音標(biāo)的生詞表、短語及專業(yè)術(shù)語表,全書還安排了非常實(shí)用的5篇補(bǔ)充學(xué)習(xí)材料。 本書可作為高等院校通信工程、電子科學(xué)與技術(shù)、電子信息工程、電子信息科學(xué)與技術(shù)等專業(yè)的本科生“專業(yè)英語”課程教材,也可用作相關(guān)專業(yè)研究生專業(yè)英語課外閱讀,還可供相關(guān)專業(yè)的工程技術(shù)人員學(xué)習(xí)和參考。
書籍目錄
UNIT 1 TEXT RANDOM PROCESSES NEW WORDS PHRASES NOTES EXERCISES Reading Random Variables New Words and Phrasesu Questions 補(bǔ)充學(xué)習(xí)材料1 相關(guān)專業(yè)部分大學(xué)課程英文名稱UNIT 2 TEXT CHANNEL CAPACITY NEW WORDS PHRASES NOTES EXERCISES Reading About Shannon’S Second Theorem New Words and Phrases Questions UNIT 3 TEXT PULSE CODE MODULATlON FUNDAMENTALS NEW WORDS PHRASES NOTES EXERCISES Reading Source Encoder and Decoder New Words and‘Phrases Questions 補(bǔ)充學(xué)習(xí)材料2 關(guān)于數(shù)的英文讀法UNIT 4 TEXT FUNDAMENTALS OF CHANNEL CODING NEW WORDS PHRASES NOTES EXERCISES Reading Examples of Block Codes New Words and Phrases QuestionsUNIT 5 TEXT MODULATlON NEW WORDS PHRASES NOTES EXERCISES Reading Reasons for Modulation New Words and Phrases Questions UNIT 6 TEXT SPEECH CODING NEW WORDS PHRASES NOTES EXERCISES Reading Characteristics of Speech Signals New Words and Phrases Questions UNIT 7UNIT 8UNIT 9UNIT 10UNIT 11UNIT 12UNIT 13UNIT 14UNIT 15UNIT 16UNIT 17UNIT 18Answers to the Exercises附錄 詞匯索引參考文獻(xiàn)
章節(jié)摘錄
Image displays in use today are mainly color (preferably flat screen) TV monitors. Monitors are driven by the outputs of image and graphics display cards that are an integral part of the computer system. Seldom are there requirements for image display applications that cannot be met by display cards available commercially as part of the computer system. In some cases, it is necessary to have stereo displays, and these are implemented in the form of headgear containing two small displays embedded in goggles worn by the user. Hardcopy devices for recording images include laser printers, film cameras, heat-sensitive devices, ink-jet units, and digital units, such as optical and CD-ROM disks. Film provides the highest possible resolution, but paper is the obvious medium of choice for written material. For presentations, images are displayed on film transparencies or in a digital medium if image projection equipment is used. The latter approach is gaining acceptance as the standard for image presentations. Networking is almost a default function in any computer system in use today. Because of the large amount of data inherent in image processing applications, the key consideration in image transmission is bandwidth. In dedicated networks, this typical is not a problem, but communications with remote sites via the Internet are not always as efficient. Fortunately, this situation is improving quickly as a result of optical fiber and other broadband technologies.
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