| 修正Volterra级数的功放行为模型 |
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| 引用本文： | 王华东,鲍景富,何松柏.修正Volterra级数的功放行为模型[J].电子科技大学学报(社会科学版),2010(3). |
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| 作者姓名： | 王华东 鲍景富 何松柏 |
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| 作者单位： | 电子科技大学电子工程学院; |
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| 基金项目： | 国家863计划(2007AA018Z83) |
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| 摘 要： | 从功率放大器的基本电路模型出发,建立了一种基于反馈结构的修正Volterra级数(MVS)的功率放大器的行为模型。在此基础上,依据功率放大器的非线性特性,对MVS模型进行了近似和简化,降低了模型的复杂度和参数提取时间。采用ADS仿真测量了一个10 W的WCDMA功率放大器的输入输出波形,用于模型提取和验证。计算结果表明,MVS模型能够很好地描述WCDMA功率放大器的非线性特性及记忆效应,与传统的记忆多项式模型(MP)相比较,MVS模型的NNSE低约3 dB,同时降低了模型的复杂度。
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| 关 键 词： | 行为模型 记忆效应 功率放大器 Volterra级数 |
Modified Volterra Series Modeling for RF Power Amplifiers Based on Feedback Structure |
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| WANG Hua-dong,BAO Jing-fu, HE Song-bai.Modified Volterra Series Modeling for RF Power Amplifiers Based on Feedback Structure[J].Journal of University of Electronic Science and Technology of China(Social Sciences Edition),2010(3). |
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| Authors: | WANG Hua-dong BAO Jing-fu HE Song-bai |
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| Institution: | WANG Hua-dong,BAO Jing-fu,, HE Song-bai(School of Electronic Engineering,University of Electronic Science , Technology of China Chengdu 610054) |
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| Abstract: | In this paper,a modified envelope-domain Volterra series model based on feedback structure is introduced.For the sake of reduction of model complexity and time cost during computation process,the MVS model is simplified by analyzing physical characteristics of power amplifiers and omitting those trivial components in the model.A 10 W WCDMA power amplifier is simulated in ADS for measuring input and output waveforms which are used in model extraction and verification for both MVS model and tradition MP model... |
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| Keywords: | behavioral modeling memory effect power amplifiers volterra series |
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