基带自适应预失真反馈误差分析与仿真  

Analysis and Solution for Errors in Feedback Path of Baseband Adaptive Pre-distorter

作　　者：陈章[1] 陈昆和[1] 杨霖[1] 

机构地区：[1]总参第63研究所

出　　处：《现代军事通信》2014年第2期61-64,共4页

摘　　要：数字基带自适应预失真技术是一种应用灵活、适应性强的线性化技术，但是该技术存在对线性化系统内部的误差敏感的问题。文章分析并仿真了自适应预失真器中的反馈支路的误差对整体线性化效果的影响，提出可以通过加入保护算法以保证自适应的收敛性，并仿真验证了保护算法的有效性。The baseband adaptive pre-distorter is flexible and practical. However, it＇s quite sensitive to er- rors in the linearization system. This paper analyzes and simulates the effect of errors in feedback path on linearization performance, and presents protective considerations in algorithm design to ensure the conver- gence of the adaptation. Simulation results demonstrate that protection in algorithm can effectively elimi- nate the effect of errors.

关 键 词：预失真 自适应 收敛性 反馈支路 

分 类 号：TN722.75[电子电信—电路与系统]