Study on QRD-RLS-based digital predistortion algorithm

Li Fei1; Huang Tao1; Liu Yongpiao1; Chen Dongjin1

doi:10.13756/j.gtxyj.2011.02.009

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Study on QRD-RLS-based digital predistortion algorithm

- Study on QRD-RLS-based digital predistortion algorithm
- Study on Optical communication Issue 2, Pages: 64-66(2011)
- 作者机构：
  
  1. 光纤通信技术和网络国家重点实验室
  2. 武汉邮电科学研究院
  3. 武汉虹信通信技术有限责任公司
- 作者简介：
- 基金信息：
- DOI：10.13756/j.gtxyj.2011.02.009
  CLC： TN722.75
- Published：2011，
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[1]李飞,黄涛,刘永飘,陈东进.基于QRD-RLS的数字预失真算法的研究[J].光通信研究,2011(02):64-66.

Li Fei1, Huang Tao1, Liu Yongpiao1, et al. Study on QRD-RLS-based digital predistortion algorithm. [J]. (2):64-66(2011)
[1]李飞,黄涛,刘永飘,陈东进.基于QRD-RLS的数字预失真算法的研究[J].光通信研究,2011(02):64-66. DOI： 10.13756/j.gtxyj.2011.02.009.

Li Fei1, Huang Tao1, Liu Yongpiao1, et al. Study on QRD-RLS-based digital predistortion algorithm. [J]. (2):64-66(2011) DOI： 10.13756/j.gtxyj.2011.02.009.

摘要

文章对数字预失真（DPD）算法进行了研究

提出了一种采用QR分解来实现3G无线通信中宽带码分多址（WCDMA）射频功率放大器线性化的DPD算法

该算法能够自适应地改变滤波器的系数以达到补偿功放的非线性

仿真结果表明了其有效性和实用性。

Abstract

On the basis of the study on the Digital Predistortion（DPD） algorithm

this paper presents a DPD algorithm that accomplishes the linearization of WCDMA RF power amplifiers in 3G radio communications by using QR decomposition.It can adaptively alter the filter coefficient to compensate the nonlinearity of the power amplifiers.Simulation results indicate that this algorithm is effective and useful.

关键词

QR分解射频功率放大器数字预失真递归最小二乘法线性化

Keywords

QR decompositionRF power amplifierdigital predistortionrecursive least squarelinearization

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School of Communication and Information Engineering, Chongqing University of Posts and Telecommunications

Institute of Information Photonics and Optical Communications,Beijing University of Posts and Telecommunications

Wuhan Hongxin Telecommunication Technologies Co.,Ltd.

Huadong Normal University

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