Suboptimum custom-tailored model based on the pruned Volterra series for power amplifiers

被引：1

作者：

Zhai, Leyu ^{[1
,2
]}

Zhai, Haitao ^{[1
]}

Zhou, Ziwei ^{[1
]}

Zhang, Eryang ^{[1
]}

Zhang, Runzhou ^{[2
]}

机构：

[1] Natl Univ Def Technol, Sch Elect Sci & Engn, Changsha 410073, Hunan, Peoples R China

[2] Xian Commun Inst, Xian 710102, Peoples R China

来源：

IEICE ELECTRONICS EXPRESS | 2014年 / 11卷 / 17期

关键词：

behavioral model; power amplifiers; nonlinear systems; Volterra series; digital pre-distortion (DPD); RF POWER;

D O I：

10.1587/elex.11.20140693

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper presents a suboptimum custom-tailored (SCT) model for power amplifiers (PAs). Based on the pruned Volterra series, the SCT model is developed by using a recursive optimum-term selecting (ROS) algorithm with an offline characterization process. The proposed model sacrifices accuracy in comparison with the custom-tailored (CT) model derived from the general Volterra series. But the former is still available, while the latter becomes unobtainable, as nonlinearity order and memory length increase. Further more, the proposed model inherits the merit of high efficiency from the base model. Simulation results show that it performs well in the time and frequency domains.

引用

页数：6

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