| 基于非直接学习结构的记忆多项式预失真技术研究 |
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| 引用本文： | 李 猛,冯朝流,蒋百灵.基于非直接学习结构的记忆多项式预失真技术研究[J].现代电子技术,2014(5):29-31. |
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| 作者姓名： | 李 猛 冯朝流 蒋百灵 |
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| 作者单位： | [1]中国海洋大学 信息科学与工程学院,山东 青岛 266100 [2] 青岛通信修理厂,山东 青岛266109 |
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| 摘 要： | 针对记忆多项式数字预失真的问题,构造了一个记忆多项式预失真系统,通过非直接学习结构(ILA)实现系数估计,根据系统特性推导出改进LMS算法。以Matlab为平台,仿真结果表明这种记忆多项式预失真器能够较好地消除失真。
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| 关 键 词： | 预失真 非直接学习结构 LMS算法 自适应 |
Research of memory polynomial pre-distortion technology based on the indirect learning architecture |
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| LI Meng,FENG Chao-liu,JIANG Bai-ling.Research of memory polynomial pre-distortion technology based on the indirect learning architecture[J].Modern Electronic Technique,2014(5):29-31. |
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| Authors: | LI Meng FENG Chao-liu JIANG Bai-ling |
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| Affiliation: | 1. College of Information Science and Engineering, Ocean University of China, Qingdao 266100, China; 2. Communication ＆ Repair Factory of Navy, Qingdao 266109, China) |
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| Abstract: | Aiming at the problem of digital pre-distortion in memory polynomial,a memory polynomial pre-distortion system is constructed,which realize the estimate of the coefficients through indirect learning architecture（ILA）approach,and the modi-fication LMS algorithm is derived according to the system characteristics. The results of simulation on Matlab show that the memory polynomial pre-distorter can effectively reduce the distortion. |
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| Keywords: | pre-distortion ILA LMS algorithm adaptive |
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