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功率放大器的自适应预失真线性化技术
Adaptive Predistortion Linearization for Power Amplifiers
【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。
【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.
【关键词】 功率放大器;
线性化技术;
自适应预失真;
工作函数;
【Key words】 Power amplifier; Linearization; Adaptive predistortion; Work-function;
【Key words】 Power amplifier; Linearization; Adaptive predistortion; Work-function;
- 【文献出处】 电讯技术 ,Telecommunication Engineering , 编辑部邮箱 ,2003年04期
- 【分类号】TN722
- 【被引频次】27
- 【下载频次】424