摘要
数字预失真技术在软件仿真方面已取得长足进步,但在硬件实现上还存在着很大的不足。利用设计的实验平台,在窄带通信系统中不考虑记忆效应的情况下,提出了一种基于查询表的能够有效抑制器件噪声的自适应数字预失真方案。经FPGA实现该方案后,可以明显降低噪声和交调干扰,实验结果较为理想。
Digital predistortion technology in the simulation software has made great progress, but in hardware realization there is a great shortage. Based on the narrow communication systems and disregarding memory effects, the paper describes an adaptive digital predistortion method which can restrain the noise effect caused by applications. Realized by FPGA,it can obviously reduce noise and cross-interference,and achieve perfect experimental result.
出处
《现代电子技术》
2008年第13期156-158,162,共4页
Modern Electronics Technique
