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

IEICE Electronics Express

Ziwei Zhou¹  Haitao Zhai¹  Eryang Zhang¹  Runzhou Zhang²  Leyu Zhai¹ 

[1] School of Electronic Science and Engineering, National University of Defense Technology;Xi’an Communications Institution

关键词: behavioral model;    power amplifiers;    nonlinear systems;    Volterra series;    digital pre-distortion (DPD);   

DOI  :  10.1587/elex.11.20140693

学科分类：电子、光学、磁材料

来源: Denshi Jouhou Tsuushin Gakkai

【 摘 要 】

References(7)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.

【 授权许可】

Unknown