| 记忆功放的预失真线性化方案 |
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| 引用本文： | 赵庆敏,万亮.记忆功放的预失真线性化方案[J].南昌大学学报(理科版),2011,35(5):1. |
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| 作者姓名： | 赵庆敏 万亮 |
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| 作者单位： | 南昌大学信息工程学院； |
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| 摘 要： | 在多载波宽带发射机中,射频功放存在固有的非线性特性与记忆效应在功放输出产生了AM/AM与AM/PM失真,进而带来了频谱扩展与带内失真问题,严重影响了通信质量。为了能同时补偿功放的非线性失真与记忆效应,构建了基于间接学习结构的预失真系统,并结合LS算法辨识预失真器的参数。仿
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| 关 键 词： | 预失真 记忆效应 功率放大器 间接学习结构 |
Efficient adaptive predistortion technique in memory high power amplifier |
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| ZHAO Qing-min
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WAN Liang.Efficient adaptive predistortion technique in memory high power amplifier[J].Journal of Nanchang University(Natural Science),2011,35(5):1. |
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| Authors: | ZHAO Qing-min WAN Liang |
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| Institution: | ZHAO Qing-min,WAN Liang(College of Information Engineering,Nanchang University,Nanchang 330031,China) |
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| Abstract: | RF Pas have nonlinearities and memory effects that generate AM-AM and AM-PM distortion at the output of the PA in multi-channel wideband wireless transmitters.The effects create spectral regrowth in the adjacent channels and in-band distortion which degrades communication performance.The article makes use of a system for baseband predistortion linearaziton based on indirect learning architecture and offers LS agorithem in order to estimate the coefficient of the PD model.The results from simulation indicate... |
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| Keywords: | power amplifier memory effects predistortion indirect learning archartecture |
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