| 基于数字电视发射的功放线性化方案分析 |
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| 引用本文： | 刘军,张继生,徐法义.基于数字电视发射的功放线性化方案分析[J].电视技术,2004(9):49-52. |
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| 作者姓名： | 刘军 张继生 徐法义 |
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| 作者单位： | 山东电视台,发射台,山东,济南,250062;山东电视台,发射台,山东,济南,250062;山东电视台,发射台,山东,济南,250062 |
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| 摘 要： | 根据数字电视OFDM信号对电视发射机功率放大器线性的要求,分析了功率回退法在数字电视地面传输具体环境下的应用条件,提出一种数字自适应基带线性化预校正方案,并进行了计算机仿真,对模拟电视发射机功率放大器适应OFDM信号的传输进行了探讨.
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| 关 键 词： | 正交频分复用 自适应 数字电视 非线性校正 |
| 文章编号： | 1002-8692(2004)09-0049-04 |
| 修稿时间： | 2004年4月30日 |
Analysis of Power Amplifier Linearizion Technique for Digital Television Transmission |
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| LIU Jun,ZHANG Ji-sheng,XU Fa-yi.Analysis of Power Amplifier Linearizion Technique for Digital Television Transmission[J].Tv Engineering,2004(9):49-52. |
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| Authors: | LIU Jun ZHANG Ji-sheng XU Fa-yi |
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| Abstract: | Based on the requirement of linearity for television transmitter power amplifier to transmit digital television OFDM signal, this article gives theoretical analysis on the conditions for Back-Off method used in digital television terrestrial broadcast in a given transmission environment, and presents a digital adaptive base-band linear pre-distortion scheme. Computer simulation is carried out, and analog television transmitter power amplifier for OFDM signal transmission is studied. |
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| Keywords: | OFDM adaptive digital television non-linearity correction |
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