| 增益可控的预失真线性化技术 |
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| 引用本文： | 曹新容. 增益可控的预失真线性化技术[J]. 闽江学院学报, 2013, 0(5): 43-46 |
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| 作者姓名： | 曹新容 |
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| 作者单位： | 闽江学院计算机科学系,福建福州350121 |
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| 基金项目： | 福建省教育厅科技项目（JA12271） |
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| 摘 要： | 为了满足现代无线通信系统对传输系统线性化性能的要求,线性化技术成为通信领域的研究热点.在研究预失真技术特点的基础上,分析功率增益对预失真技术线性化性能的影响,指出降低预失真放大器的实际输出增益能有效地提高系统的线性化性能.引入功率增益控制因子,改进预失真算法,提出基于增益可控的预失真线性化技术.仿真实验证明,该技术可以实现满意的线性化性能,提高预失真放大器的效率.
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| 关 键 词： | 预失真技术 增益可控 线性化 |
A predistortion linearization algorithm based on controllable gain |
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| CAO Xin-rong. A predistortion linearization algorithm based on controllable gain[J]. Journal of Minjiang University, 2013, 0(5): 43-46 |
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| Authors: | CAO Xin-rong |
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| Affiliation: | CAO Xin-rong ( Department of Computer Science, Minjiang University, Fuzhou, Fujian 350121, China) |
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| Abstract: | In order to meet the linearity performance requirement of modern wireless communication sys- tem, linearization technology of power amplifier is more and more important in communication field. This paper studies the feature of predistortion technology, and analyzes the impact of power gain. It points out that the linearity performance could be improved by reducing output gain. And then a predistortion linear- ization algorithm based on controllable gain is put forward, which uses a factor of power controllable gain to improve the classical algorithm. Simulation results show that the new algorithm could obtain better line- arity performances of predistortion amplifier and improve its efficiency. |
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| Keywords: | predistortion technology controllable gain linearization |
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