Fundamentals of Digital Television Transmission
暫譯: 數位電視傳輸基礎原理

Gerald W. Collins

  • 出版商: Wiley
  • 出版日期: 2000-11-09
  • 售價: $1,300
  • 貴賓價: 9.8$1,274
  • 語言: 英文
  • 頁數: 282
  • 裝訂: Hardcover
  • ISBN: 0471391999
  • ISBN-13: 9780471391999
  • 下單後立即進貨 (約5~7天)

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商品描述

Description:

What today’s TV engineers need to know about working with digital systems

This book helps systems engineers, designers, and managers in TV broadcasting make a smooth transition from analog to digital technologies. With an emphasis on RF transmission rather than baseband signal processing, it offers in a single resource a complete discussion of the digital TV signal, from the input to the transmitter to the output of the receiving antenna.

Industry expert Gerald Collins provides clear, up-to-date explanations that build upon experience engineers already have with analog technology, including comparisons between analog and digital systems, factors affecting the performance of VHF and UHF stations, and down-to-earth discussions of modern high-power RF filters. Plus, he provides over 150 high-quality illustrations and tables as well as extensive references for readers wishing to pursue the subject more in depth. The discussion includes:

  • Major digital TV transmission standards
  • Key performance parameters of interest to RF engineers
  • The theory of operation and practical implementation of major system components
  • Factors affecting propagation of digital TV signals
  • Results of field testing of DTV systems
  • Performance data on the American ATSC, the European DVB, and the Japanese ISDB-T systems

The DTV waveform shown on the cover was photographed by Bob Plonka of Harris Corporation and is used with permission.

 

Table of Contents:

Preface.

Acknowledgments.

1. Digital Television Transmission Standards
ATSC terrestrial transmission standard, vestigial sideband modulation, DVB-T transmission standard, ISDB-T transmission standard, channel allocations, antenna height and power, MPEG-2

2. Performance Objectives for Digital Television
System noise, external noise sources, transmission errors, error vector magnitude, eye pattern, interference, cochannel interference, adjacent channel interference, analog to digital TV, transmitter requirements

3. Channel Coding and Modulation for Digital Television
Data synchronization, randomization/scrambling, forward error correction, interleaving, inner code, frame sync insertion, quadrature modulation, 8 VSB, bandwidth, error rate, COFDM, flexibility, bandwidth

4. Transmitters for Digital Television
Precorrection and equalization, up conversion, precise frequency control, RF amplifiers, solid-state transmitters, RF amplifier modules, power supplies, power combiners, Wilkinson combiner, ring combiner, starpoint combiner, cooling, automatic gain or level control, ac distribution, transmitter control, tube transmitters, tube or solid-state transmitters, performance quality, retrofit of analog transmitters for DTV

5. Radio-Frequency Systems for Digital Television
Constant-impedance filter, output filters, elliptic function filters, cavities, channel combiners

6. Transmission Line for Digital Television
Fundamental parameters, efficiency, effect of VSWR, system AERP, rigid coaxial transmission lines, dissipation, attenuation, and power handling, higher-order modes, peak power rating, frequency response, standard lengths, corrugated coaxial cables, wind load, waveguide, bandwidth, waveguide attenuation, power rating, frequency response, size trade-offs, which line? waveguide or coax? pressurization.

7. Transmitting Antennas for Digital Television
Antenna patterns, elevation pattern, mechanical stability, null fill, azimuth pattern, slotted cylinder antennas, gain and directivity, power handling, antenna impedance, bandwidth and frequency response, multiple-channel operation, types of digital television broadcast antennas, antenna mounting

8. Radio-Wave Propagation
Free-space propagation, distance to the radio horizon, refraction, multipath, ground reflections, surface roughness, effect of earth’s curvature, Fresnel zones, linear distortions, diffraction, fading, undesired signal, field tests, Charlotte, North Carolina, Chicago, Illinois, Raleigh, North Carolina

9. Test and Measurement for Digital Television
Power measurements, average power measurement, calorimetry, power meters, peak power measurement, measurement uncertainty, testing digital television transmitters

Symbols and Abbreviations.

Index.

商品描述(中文翻譯)

**描述:**
當今電視工程師需要了解的數位系統工作知識
本書幫助電視廣播領域的系統工程師、設計師和管理人員順利從類比技術過渡到數位技術。重點在於射頻(RF)傳輸,而非基帶信號處理,提供了一個完整的資源,討論數位電視信號,從輸入到發射器再到接收天線的輸出。
行業專家 Gerald Collins 提供清晰、最新的解釋,基於工程師已經擁有的類比技術經驗,包括類比與數位系統的比較、影響 VHF 和 UHF 電台性能的因素,以及現代高功率 RF 濾波器的實用討論。此外,他還提供了超過 150 幅高品質插圖和表格,以及廣泛的參考資料,供希望深入研究該主題的讀者參考。討論內容包括:
- 主要數位電視傳輸標準
- 對 RF 工程師感興趣的關鍵性能參數
- 主要系統組件的操作理論和實際實施
- 影響數位電視信號傳播的因素
- DTV 系統的現場測試結果
- 美國 ATSC、歐洲 DVB 和日本 ISDB-T 系統的性能數據
封面上顯示的 DTV 波形由 Harris Corporation 的 Bob Plonka 拍攝,並經過許可使用。

**目錄:**
**前言。**
**致謝。**
**1. 數位電視傳輸標準**
ATSC 地面傳輸標準、殘餘邊帶調變、DVB-T 傳輸標準、ISDB-T 傳輸標準、頻道分配、天線高度和功率、MPEG-2
**2. 數位電視的性能目標**
系統噪聲、外部噪聲源、傳輸錯誤、錯誤向量幅度、眼圖、干擾、同頻干擾、相鄰頻道干擾、類比到數位電視、發射器要求
**3. 數位電視的通道編碼和調變**
數據同步、隨機化/加密、前向錯誤更正、交錯、內部編碼、幀同步插入、正交調變、8 VSB、帶寬、錯誤率、COFDM、靈活性、帶寬
**4. 數位電視的發射器**
預補償和均衡、上變頻、精確頻率控制、RF 放大器、固態發射器、RF 放大模組、電源、功率合併器、Wilkinson 合併器、環形合併器、星點合併器、冷卻、自動增益或電平控制、交流配電、發射器控制、管式發射器、管式或固態發射器、性能質量、類比發射器的 DTV 改裝
**5. 數位電視的射頻系統**
恆定阻抗濾波器、輸出濾波器、橢圓函數濾波器、腔體、頻道合併器
**6. 數位電視的傳輸線**
基本參數、效率、VSWR 的影響、系統 AERP、剛性同軸傳輸線、耗散、衰減和功率處理、高階模式、峰值功率額定、頻率響應、標準長度、波紋同軸電纜、風載、波導、帶寬、波導衰減、功率額定、頻率響應、尺寸權衡、選擇哪條線?波導還是同軸?加壓。
**7. 數位電視的發射天線**
天線模式、仰角模式、機械穩定性、零填充、方位模式、槽式圓柱天線、增益和指向性、功率處理、天線阻抗、帶寬和頻率響應、多頻道操作、數位電視廣播天線的類型、天線安裝
**8. 無線電波傳播**
自由空間傳播、無線電地平線的距離、折射、多徑、地面反射、表面粗糙度、地球曲率的影響、Fresnel 區域、線性失真、衍射、衰落、不需要的信號、現場測試、北卡羅來納州夏洛特、伊利諾伊州芝加哥、北卡羅來納州羅利
**9. 數位電視的測試和測量**
功率測量、平均功率測量、熱量測量、功率計、峰值功率測量、測量不確定性、測試數位電視發射器
**符號和縮寫。**
**索引。**