| 基于分段多项式的RF功放预失真线性化新方法 |
| |
| 引用本文： | 张鹏,吴嗣亮. 基于分段多项式的RF功放预失真线性化新方法[J]. 北京理工大学学报, 2007, 27(8): 705-708 |
| |
| 作者姓名： | 张鹏 吴嗣亮 |
| |
| 作者单位： | 北京理工大学,信息科学技术学院电子工程系,北京,100081;北京理工大学,信息科学技术学院电子工程系,北京,100081 |
| |
| 摘 要： | 为补偿RF功率放大器的非线性失真,提出一种新的基于分段多项式的自适应数字预失真方法,使用多个直角坐标形式的低阶奇次多项式设计预失真器.分析多种自适应数字预失真方法的计算复杂度,通过Matlab软件仿真它们的收敛速度和线性化效果.该方法计算复杂度低,易于实现.仿真结果表明,该方法收敛速度快,且具有良好的抑制频谱扩展的线性化性能.
|
| 关 键 词： | RF功率放大器 自适应数字预失真 多项式 分段 |
| 文章编号： | 1001-0645（2007）08-0705-04 |
| 修稿时间： | 2007-04-05 |
Novel Predistortion Method for RF Power Amplifiers Linearization Based on Piecewise Polynomial |
| |
| ZHANG Peng and WU Si-liang. Novel Predistortion Method for RF Power Amplifiers Linearization Based on Piecewise Polynomial[J]. Journal of Beijing Institute of Technology(Natural Science Edition), 2007, 27(8): 705-708 |
| |
| Authors: | ZHANG Peng and WU Si-liang |
| |
| Affiliation: | Department of Electronic Engineering, School of Information Science and Technology, Beijing Institute of Technology, Beijing 100081, China |
| |
| Abstract: | To compensate for nonlinear distortion of RF power amplifiers, a novel adaptive digital predistortion method based on piecewise polynomial was proposed, and multiple lower-odd-order-only polynomials in the form of orthogonal coordinates were used for predistorter design. Computational complexities of several adaptive digital predistortion methods were analyzed, and their convergence speed and linearization effectiveness were simulated by Matlab software. The proposed method is of low computational complexity and easy implementation. Simulation results showed that this method converges quickly and provides good linearization performance in suppressing the spectral regrowth. |
| |
| Keywords: | RF power amplifiers adaptive digital predistortion polynomial piecewise |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《北京理工大学学报》浏览原始摘要信息 |
|
点击此处可从《北京理工大学学报》下载全文 |
|
