一种新的基于反馈的数字预失真器模型

doi:10.13190/j.jbupt.2017-054

北京邮电大学学报 ›› 2017, Vol. 40 ›› Issue (5): 75-81.doi: 10.13190/j.jbupt.2017-054

一种新的基于反馈的数字预失真器模型

赵霞, 李瞻宁

同济大学电子与信息工程学院, 上海 201804

收稿日期:2017-09-22 出版日期:2017-10-28 发布日期:2017-11-21
作者简介:赵霞(1974-),女,教授,E-mail:zhaoxia@tongji.edu.cn.

Polynomial Model with Feedback for Digital Predistortion of Power Amplifiers

ZHAO Xia, LI Zhan-ning

College of Electronics and Information Engineering, Tongji University, Shanghai 201804, China

Received:2017-09-22 Online:2017-10-28 Published:2017-11-21

摘要/Abstract

摘要： 数字预失真器是线性化功率放大器的有效工具.记忆多项式等模型难以兼顾模型的精确性和复杂程度.为解决该问题，提出了一种基于反馈的多项式模型建模数字预失真器.不仅使用输入信息，还使用过去时刻的输出信息，用较少的系数个数对高非线性及深记忆效应的功率放大器建立模型.仿真结果显示，该模型比一些常见的模型可更有效地缓解功率放大器的幅值和相位失真.

关键词: 功率放大器, 记忆多项式, 数字预失真器, 信号处理

Abstract: The digital predistortion is a cost-effective way to the linearize power amplifiers. Memory polynomial is one of the most popular DPD models. However, these models cannot get a good compromise between accuracy and complexity. The author proposes a feedback-based model to characterize DPD. The model not only uses the input information, but also uses the past output information. Simulations show that the model can linearize the magnitude and phase nonlinearity of power amplifiers more effectively.

Key words: power amplifiers, memory effect, digital predistortion, signal processing

中图分类号:

TN911.72

赵霞, 李瞻宁. 一种新的基于反馈的数字预失真器模型[J]. 北京邮电大学学报, 2017, 40(5): 75-81.

ZHAO Xia, LI Zhan-ning. Polynomial Model with Feedback for Digital Predistortion of Power Amplifiers[J]. JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM, 2017, 40(5): 75-81.

参考文献

[1] Luo J, Liszewski J, Schubert B. Smart RF signal processing for advanced transmitters:from theory to practice[C]//2012 International Symposium on Signals, Systems, and Electronics. Potsdam:IEEE, 2012:1-6.
[2] Ding L, Zhou G T, Morgan D R, et al. A robust digital baseband predistorter constructed using memory polynomials[J]. IEEE Transation Communications, 2004, 52(1):159-165.
[3] Qiao Jianyong. Julia sets and complex singularities of free energies[J]. Memoirs of American Mathematical Society, 2015(234):1-89.
[4] Qiao Jianyong. On the preimages of parabolic points[J]. Nonlinearity, 2000(13):813-818.
[5] Ai Bo, Zhong Zhangdui, Zhu Gang, et al. A novel scheme for power amplifier predistortion based on indirect learning architecture[J]. Wireless Personal Communications, 2008, 46(4):523-530.
[6] Morgan D R, Ma Z, Kim J, et al. A generalized memory polynomial model for digital predistortion of RF power amplifiers[J]. IEEE Transactions on Signal Processing, 2006, 54(10):3852-3860.
[7] Ai Bo, Zhong Zhangdui, Zhu Gang, et al. Two-dimensional indexing polynomial-based pre-distorter for power amplifiers with memory effects[J]. IET Communications, 2008, 2(10):1263-1271.
[8] Ding Lei, Zhou G T, Morgan D R, et al. A robust digital baseband predistorter constructed using memory polynomials[J]. IEEE Transactions on Communications, 2004, 52(1):159-165.
[9] Diniz P S R. Adaptive Filtering Algorithms and Practical Implementation[M]. 3rd ed. Boston:Springer, 2008.
[10] Lee J, Mathews V J. A stability result for RLS adaptive bilinear filters[J]. IEEE Signal Processing Letters, 1994, 1(12):191-193.
[11] Ogunfunmi T. Adaptive nonlinear system identification[M]. Boston:Springer, 2007:118-123.
[12] Zhao Xia, He Yabo. Modified gram-schmidt orthogonalization and QR decompositon extraction for digital predistorter[C]//2011 Chinese Control and Decision Conference (CCDC 2011). Mianyang:IEEE, 2011:1120-1125.

[1]	张尧祯, 刘昱. 基于SiGe工艺的28 GHz变压器匹配差分 Cascode功率放大器[J]. 北京邮电大学学报, 2020, 43(6): 36-41.
[2]	李枝灵, 李凯, 岳晓果, 亓峰, 陈兴渝. 一种基于L₁范数的目标源测向算法[J]. 北京邮电大学学报, 2017, 40(s1): 103-107.
[3]	胡燕祝, 王松, 李雷远. Phi-OTDR技术信号处理中的特征提取方法[J]. 北京邮电大学学报, 2017, 40(6): 109-114.
[4]	付卫红, 周新彪, 农斌. 单通道盲源分离的研究现状与展望[J]. 北京邮电大学学报, 2017, 40(5): 1-11.
[5]	楼建明, 朱仁祥, 郑悠, 钟秋波. MBER优化用于宽带功放通信系统[J]. 北京邮电大学学报, 2016, 39(6): 37-41.
[6]	叶锋, 李承欣, 许力, 陈家祯, 门爱东. 基于结构分析的感知视频信号压缩方法[J]. 北京邮电大学学报, 2016, 39(5): 110-115.
[7]	王桂宝. 圆形极化阵列到达角和极化参数估计[J]. 北京邮电大学学报, 2016, 39(2): 69-72.
[8]	陈璐, 王建立, 贾建禄, 马鑫雪. 地基大型望远镜数字通信系统软件设计[J]. 北京邮电大学学报, 2015, 38(6): 74-80.
[9]	王桂宝, 陶海红, 王兰美. 电偶极子组天线幅相误差校正[J]. 北京邮电大学学报, 2013, 36(5): 15-18.
[10]	田鹏武康荣宗于宏毅. 基于斜投影算子的压缩域滤波法[J]. 北京邮电大学学报, 2012, 35(3): 108-111.
[11]	陈军，冯穗力，黄妙娜，张远见. 多区间功放预失真方案与FPGA实现 [J]. 北京邮电大学学报, 2012, 35(1): 90-94.
[12]	蒋清平,杨士中,张天骐. 认知无线电中OFDM信号联合参数估计[J]. 北京邮电大学学报, 2011, 34(2): 131-135.
[13]	高建波1,2，田彩萍3，赵尔沅1，乐光新1. 基于M带小波提升理论的多载波调制系统[J]. 北京邮电大学学报, 2007, 30(4): 98-102.
[14]	马国伟，孙汉旭，贾庆轩，叶平，郐永涛. 无刷直流电动机的DSP控制器设计与实现[J]. 北京邮电大学学报, 2005, 28(3): 96-99.
[15]	张海燕,李欣,赵犁丰,刘春杰. 基于TMS320C31的双通道实时DSP系统[J]. 北京邮电大学学报, 2003, 26(S1): 130-133.

一种新的基于反馈的数字预失真器模型

Polynomial Model with Feedback for Digital Predistortion of Power Amplifiers

PDF

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

本文评价