无线通信中高效发射机线性化技术分析

Analysis of High Efficiency Transmitter Linearization Technology in Wireless Communication

首先介绍了数字预失真的原理,然后阐述了常用的几种建模方法,接着分析了DPD中常用的两种学习结构以及与之对应的参数辨识方法,最后通过实验仿真的方式验证了数字预失真技术对无线通信系统中发射机线性补偿的效果。

Firstly, the principle of digital predistortion is introduced, then several commonly used modeling methods are elaborated. Secondly, two learning structures commonly used in DPD and corresponding parameter identification methods are analyzed. Finally, the effect of digital predistortion tech nology on linear compensation of transmitter in wireless communication system is verified by experimental simulation.