现代电子技术Issue(20)：8-10,3.
一种基于 LMS 迭代的环路延时估计算法
A loop delay estimation algorithm based on LMS iteration
谭超强 1熊春林 1魏急波1
作者信息
- 1. 国防科学技术大学 电子科学与工程学院，湖南 长沙 410073
- 折叠
摘要
Abstract
DPD(digital pre⁃distortion)technology is a nonlinear scheme to effectively compensate the RF power amplifier, but the delay estimation between forward data and feedback data is the key of DPD system,which affects the nonlinear compen⁃sation capability directly. In this paper,the loop delay estimation algorithm of an integer multiple is introduced based on correla⁃tion operation of sliding window. At the same time,a loop delay estimation algorithm of adaptive fractional multiple is proposed according to the comparison of the data inputted one by one based on LMS iteration. The simulation results indicate that the algo⁃rithm has superior estimation performance of residual fractional multiple delay in the range of [-Ts,Ts after the loop delay esti⁃] mation of the integer multiple.关键词
数字预失真/环路延时估计/LMS 迭代/射频功率放大器Key words
digital pre-distortion/loop delay estimation/LMS iteration/radio frequency power amplifier分类
信息技术与安全科学引用本文复制引用
谭超强,熊春林,魏急波..一种基于 LMS 迭代的环路延时估计算法[J].现代电子技术,2015,(20):8-10,3.
