Robust Behavioral Modeling of Dynamic Nonlinearities Using Gegenbauer Polynomials with Application to RF Power Amplifiers

被引:4
作者
Harguem, Afef [1 ]
Boulejfen, Noureddine [2 ,3 ]
Ghannouchi, Fadhel M. [3 ]
Gharsallah, Ali [1 ]
机构
[1] Univ El Manar, Fac Sci Tunis, Dept Phys, Tunis, Tunisia
[2] Univ Calgary, Schulich Sch Engn, IRadio Lab, Dept Elect & Comp Engn, Calgary, AB T2N 1N4, Canada
[3] Univ Kairouan, Inst Super Sci Appl & Technol, Kairouan, Tunisia
关键词
distortion power; complex nonlinearity; intermodulation distortion; memory effects; multitone excitation; power series; spectral regrowth; ORTHOGONAL POLYNOMIALS; MEMORY;
D O I
10.1002/mmce.20758
中图分类号
TP39 [计算机的应用];
学科分类号
081203 ; 0835 ;
摘要
In this article, we propose a new set of basis functions based on Gegenbauer polynomials suitable for robust behavioral modeling of nonlinear dynamic systems. These polynomials can be optimized for maximum model identification stability under different input signal distributions. The efficiency and robustness of the proposed polynomial models are demonstrated and compared to the ones of previously published models. The obtained results revealed an exceptional numerical stability regardless of the input signal statistics, making the proposed new models suitable for multimode and broadband nonlinear wireless transmitters. (c) 2013 Wiley Periodicals, Inc. Int J RF and Microwave CAE 24:268-279, 2014.
引用
收藏
页码:268 / 279
页数:12
相关论文
共 17 条
[1]  
Abramowitz M., 1965, CHAPTER MATH FUNCTIO, P773
[2]  
Bouajina S. S.-, 2010, IET MICROW ANTENNA P, V4, P1818
[3]   Volterra behavioral model for wideband RF amplifiers [J].
Crespo-Cadenas, Carlos ;
Reina-Tosina, Javier ;
Madero-Ayora, Maria J. .
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 2007, 55 (03) :449-457
[4]   A robust digital baseband predistorter constructed using memory polynomials [J].
Ding, L ;
Zhou, GT ;
Morgan, DR ;
Ma, ZX ;
Kenney, JS ;
Kim, J ;
Giardina, CR .
IEEE TRANSACTIONS ON COMMUNICATIONS, 2004, 52 (01) :159-165
[5]  
Forsythe G.E., 1976, COMPUTER METHODS MAT
[6]   Digital predistortion of wideband signals based on power amplifier model with memory [J].
Kim, J ;
Konstantinou, K .
ELECTRONICS LETTERS, 2001, 37 (23) :1417-1418
[7]   Quantifying memory effects in RF power amplifiers [J].
Ku, HC ;
McKinley, MD ;
Kenney, JS .
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 2002, 50 (12) :2843-2849
[8]   Behavioral modeling of nonlinear RF power amplifiers considering memory effects [J].
Ku, HC ;
Kenney, JS .
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 2003, 51 (12) :2495-2504
[9]   Orthogonal polynomials for power amplifier modeling and predistorter design [J].
Raich, R ;
Qian, H ;
Zhou, GT .
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, 2004, 53 (05) :1468-1479
[10]   Orthogonal polynomials for complex Gaussian processes [J].
Raich, R ;
Zhou, GT .
IEEE TRANSACTIONS ON SIGNAL PROCESSING, 2004, 52 (10) :2788-2797