一种基于Volterra级数的基带数字预失真  

Baseband Digital Predistortion Method Based on Volterra Series

作　　者：郑百衡[1] 

机构地区：[1]中国西南电子技术研究所,四川成都610036

出　　处：《电视技术》2010年第S1期28-29,43,共3页Video Engineering

摘　　要：提出了一种基于间接学习结构的自适应基带预失真技术来补偿高功率功放的记忆效应。它使用基于Volterra级数的RLS自适应算法。仿真结果表明,该预失真器能够有效地校正由于功率放大器的非线性和记忆效应引起的信号失真。In This paper,an adaptive pre-distortion scheme is pwposed,which is constructed by using the indirect learning architecture,to compensate nonlinearity of the PA with memory effects.This algorithm is based on Recursive Least Squares(RLS) and volterra series.Simulation results show that the predistorter can correct the signal distortion effectively caused by nonlinearity and memory effects of PA.

关 键 词：自适应预失真 记忆效应 VOLTERRA级数 递归最小二乘算法 间接学习结构 非线性失真 功率放大器 

分 类 号：TN722.75[电子电信—电路与系统]