| DTV发射机的效率——降低成本和减少环境污染的新机遇 |
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| 引用本文： | 高凤吉.DTV发射机的效率——降低成本和减少环境污染的新机遇[J].广播与电视技术,2009,36(2):39-43. |
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| 作者姓名： | 高凤吉 |
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| 作者单位： | 广播电视规划院 |
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| 摘 要： | 今后几年，数字地面电视系统在全世界范围的引入将导致大量新发射机的安装。随着能源涨价和增加对环境污染的关注，新安装发射机尽可能地提高能源利用效率变得越来越重要。本文讨论有关DTV发射机能源利用效率的各种问题以及描述包络跟踪技术对于降低新的数字网络运行成本和环境污染的贡献。
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| 关 键 词： | ET-包络跟踪 HAT-高精度跟踪 PAPR- 峰均功率比(峰均比) CFR-波峰系数降低 DPD— 数字预失真 |
Efficiency of DTV Transmitter |
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| Gao Fengji.Efficiency of DTV Transmitter[J].Radio & TV Broadcast Engineering,2009,36(2):39-43. |
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| Authors: | Gao Fengji |
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| Abstract: | With development of DTTV, large numbers of DTV transmitters are required. How to improve efficiency of digital transmitter and how to reduce running cost and environmental pollution have more significance to China, which is a large country of radio and television. The paper discusses problems of energy using efficiency of DTV transmitter, and analyzes envelope following technology's contribution to reduction of running cost and environmental pollution. |
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