| 摘要: |
| 针对WCDMA系统中功率放大器的非线性特征,设计了一种基于Volterra级数的有记忆数字基带预失真算法,能够自适应地补偿功放的非线性.理论分析和计算机仿真验证了该算法的有效性和实用性. |
| 关键词: WCDMA系统 功率放大器 非线性 数字预失真 |
| DOI：10.3969/j.issn.1001-893X. |
| Received:December 19, 2006Revised:April 26, 2007 |
| 基金项目: |
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| Design of a New Digital Predistortion Algorithm |
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| Abstract: |
| According to the nonlinearity of power amplifier in WCDMA system,a digital baseband predistortion(DPD)algorithm with memory is proposed,which is based on the Volterra series.The algorithm can adaptively improve the nonlinearity of power amplifier.The results of theoretic analysis and computer simulation both verify the validity and practicability of this algorithm. |
| Key words: WCDMA system,power amplifier,nonlinearity,digital predistortion(DPD) |
