基于ARM+FPGA的短波功放数字预失真硬件平台设计
PDF下载 (676)胡 挺,刘太君 *,叶 焱,许高明.基于ARM+FPGA的短波功放数字预失真硬件平台设计[J].宁波大学学报(理工版),2017,30(5):48-52.DOI:
HU Ting,LIU Tai-jun *,YE Yan,XU Gao-ming.ARM+FPGA hardware platform design for digital pre-distortion of shortwave power amplifiers[J].Journal of Ningbo University(Natural Science & Engineering Edition),2017,30(5):48-52.DOI:
| Title: | ARM+FPGA hardware platform design for digital pre-distortion of shortwave power amplifiers |
| 作者: | 胡 挺, 刘太君 *, 叶 焱, 许高明 |
| Author(s): | HU Ting, LIU Tai-jun *, YE Yan, XU Gao-ming |
| 关键词: | 数字预失真; 短波功放 |
| Keywords: | ARM; FPGA; digital pre-distortion; shortwave power amplifiers |
| 分类号: | TN47; TP27 |
| 文献标识码: | A |
| 摘要: | 数字预失真技术作为一种功放线性化的关键技术, 可有效提高功放线性度. 为高效实现短波功放数字预失真算法, 改善功放线性度, 设计并实现了一款以ARM+FPGA为核心的短波功放数字预失真硬件平台, 该平台使系统具有更好的可移植性、可重用性和扩展性. 在对设计的整体硬件框架进行阐述的同时, 着重讨论了模拟电路模块的设计, 并分析了短波功放预失真线性化采用的方案. 整机测试结果表明, 设计的新平台能够满足数字预失真的要求. |
| Abstract: | As a key technology of power amplifier linearization, digital pre-distortion technology can improve the linearity of power amplifier effectively. In a bid to realize the digital pre-distortion algorithm effectively and to improve the linearity of shortwave power amplifier, a shortwave power amplifier digital pre-distortion hardware platform is designed and realized with ARM+FPGA. This platform has better portability, reusability and scalability for the system. In this paper, the system hardware framework is first described and the analog circuit is introduced. Also introduced is the digital pre-distortion scheme of shortwave power amplifier which will be used in the design. Finally, the whole platform is tested and the results show that the platform has satisfied the requirement of digital pre-distortion. |
| 参考文献 /References: | [1] 郭雅琴, 叶焱, 刘太君, 等. 基于DSP和FPGA的短波功放数字预失真算法实现[J]. 固体电子学研究与进展, 2015(3):296-299. [2] OH K, LEE Y, KU H. Multiband wireless transmitter using nonlinear characteristics of power amplifier and harmonictuning predistorter[C]. Microwave Symposium Digest, 2008 IEEE MTT-S International, IEEE, 2008: 17-20. [3] LIU T, BOUMAIZA S, GHANNOUCHI F M. Augmented hammerstein predistorter for linearization of broad-band wireless transmitters[J]. IEEE Transactions on Micro- wave Theory & Techniques, 2006, 54(4):1340-1349. [4] WOO Y Y, KIM J, YI J, et al. Adaptive digital feedback predistortion technique for linearizing power amplifiers [J]. IEEE Transactions on Microwave Theory & Techniques, 2007, 55(5):932-940. [5] KIM J, ROBLIN P, CHAILLOT D, et al. A generalized architecture for the frequency-selective digital predis- tortion linearization technique[J]. IEEE Transactions on Microwave Theory & Techniques, 2013, 61(1):596-605. [6] 杨德伟, 宋雪松, 王华,等. 基于嵌入式Linux数字基带预失真控制系统的设计与实现[J]. 实验室研究与探索, 2014, 33(2):103-107. [7] MATO J L, PEREIRA M, RODRIGUEZ-ANDINA J J, et al. FPGA-based implementation of segmented predistor- ters for RF power amplifiers[C]. IEEE International Symposium on Industrial Electronics, 2008:1948-1952. [8] TEXAS INSTRUMENTS. ADS42xx双通道、14位/12位、160Msps/125Msps/65Msps超低功耗ADC[EB/OL]. [2016-12-10]. http://www.ti.com.cn/cn/lit/ds/symlink/ads 4246.pdf. [9] ANALOG DEVICES. 31MHz、双通道可编程滤波器和可变增益放大器[EB/OL]. [2016-12-15]. http://www. analog.com/media/cn/technical-documentation/data-sheets/ ADRF6516_cn.pdf. [10] 于霄峻, 何加铭, 曾兴斌, 等. 一种新的记忆多项式预失真器[J]. 宁波大学学报(理工版), 2005, 18(4):531- 533. |
| 备注/Memo: | 收稿日期: 2017－02－23. 宁波大学学报（理工版）网址: http://journallg.nbu.edu.cn/ ?基金项目: 国家自然科学基金（61571251, 61501272）; 浙江省公益技术应用研究项目（2015C34004）. ?第一作者: 胡挺（1992－）, 男, 浙江余姚人, 在读硕士研究生, 主要研究方向: 射频电路设计及功放线性化. E-mail: zjyy_ht@163.com *通信作者: 刘太君（1965－）, 男, 四川绵阳人, 博导/教授, 主要研究方向: 射频功放设计及建模和线性化等. E-mail: liutaijun@nbu.edu.cn 宁波大学学报（理工版）网址：http://journallg.nbu.edu.cn/ |
