放大器非线性失真的Volterra级数算法研究  

Property of based on HPA nonlinear distortion arithmetic of Volterra progression

作　　者：薛红[1] 杨文考[2] 李望[1] 

机构地区：[1]渭南师范学院物理系,陕西渭南714000 [2]电子科技大学,四川成都610054

出　　处：《宝鸡文理学院学报（自然科学版）》2004年第2期144-146,共3页Journal of Baoji University of Arts and Sciences(Natural Science Edition)

基　　金：渭南师院科研基金资助项目(03YKF002)

摘　　要：基于Volterra级数方法,对大功率放大器的非线性失真进行了分析,提出了一种新的Volterra自适应预失真的设计方法及其算法。理论分析和仿真实验结果表明:该算法具有收敛速度快,能有效地减小非线性失真的影响。在输入两音信号时,该算法使放大器的3次失真抑制了13dB左右。Nonlinear distortion of HPA characteristic based on the method of Volterra progression was analysised,a new idea of design and arithmetic of Volterra digital adaptive predistorting was provided. Theory and simulation test shows this arithmetic algorithm converges fast and effective reduce the effect of nonlinear distortion,the method decreases about 13 dB in third distortion of HPA when conic sign is put.

关 键 词：放大器 非线性失真 VOLTERRA级数 自适应法 

分 类 号：O441.1[理学—电磁学]