| 一种高效的用于RF功率放大器线性化的自适应预失真结构 |
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| 引用本文： | 钱业青. 一种高效的用于RF功率放大器线性化的自适应预失真结构[J]. 通信学报, 2006, 27(5): 35-40 |
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| 作者姓名： | 钱业青 |
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| 作者单位： | 同济大学,信息与通信工程系,上海,200092 |
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| 摘 要： | 分析了当前文献中主要的几种自适应预失真结构,发现这些自适应预失真结构均不利于高效最小二乘算法的直接应用,从而限制了预失真技术的自适应性能.提出了一种新的自适应预失真结构,可直接使用高效的最小二乘算法对预失真器进行自适应更新.仿真结果表明利用此结构可快速、高效地实现非线性RF功率放大器的线性化.
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| 关 键 词： | 通信与信息系统 自适应预失真 最小二乘算法 非线性失真 |
| 文章编号： | 1000-436X（2006）05-0035-06 |
| 收稿时间： | 2004-07-01 |
| 修稿时间： | 2004-07-012006-04-06 |
High-efficient adaptive predistortion structure for RF power amplifier linearization |
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| QIAN Ye-qing. High-efficient adaptive predistortion structure for RF power amplifier linearization[J]. Journal on Communications, 2006, 27(5): 35-40 |
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| Authors: | QIAN Ye-qing |
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| Affiliation: | Department of Information and Communication, Tongji University, Shanghai 200092, China |
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| Abstract: | Several main adaptive predistortion structures for power amplifier linearization were analyzed.They all have the difficulties in achieving both fast adaptation and high linearity for efficient least-square(LS) fast adaptive algorithms cannot be used in these schemes directly.A new predistortion structure suits efficient LS algorithm application was pro-posed.Simulation results demonstrate that the proposed predistortion scheme posses fast convergence and good lineariza-tion performance. |
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| Keywords: | communications and information systems adaptive predistortion least-squares algorithm nonlinear distortion |
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