| 摘要: |
| 重点介绍了几种主要的功率放大器的自适应预失真技术,包括基带预失真、中频预失真及射频预失真技术,以及几种自适应预失真工作函数的产生方法,并利用多项式产生工作函数的方法对功率放大器进行预失真调整,使其线性度得到明显改善。 |
| 关键词: 功率放大器,线性化技术,自适应预失真,工作函数 |
| DOI：10.3969/j.issn.1001-893X. |
| Revised:May 13, 2003 |
| 基金项目: |
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| Adaptive Predistortion Linearization for Power Amplifiers |
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| Abstract: |
| In this paper, three major methods of adaptive predistortion linearization (base-band predistortion, IF predistortion and RF predistortion) are presented, along with three methods of producing work-functions .An adaptive predistortion lineariser using polynomial functions is simulated in ADS 2002. The result demonstrates that the linearity of the amplifier is improved explicitly. |
| Key words: Power amplifier,Linearization,Adaptive predistortion,Work-function |
