2D orthogonal polynomials for concurrent dual-band digital predistortion

Author

Guang Yang ; Falin Liu ; Lingli Li ; Haoyu Wang ; Caihong Zhao ; Zhenyang Wang

Author_Institution

Dept. of Electron. Eng. & Inf. Sci., Univ. of Sci. & Technol. of China, Hefei, China

fYear

2013

fDate

2-7 June 2013

Firstpage

1

Lastpage

3

Abstract

In order to alleviate the ill-conditioning problem when using the 2D memory polynomial (MP) model for concurrent dual-band digital predistortion (DPD), 2D orthogonal polynomials are proposed in this paper. Closed form expressions for 2D orthogonal polynomials are derived for uniform amplitude distribution. Experimental results show that 2D orthogonal polynomials yield better linearization performance than conventional polynomials in finite precision processing.

Keywords

distortion; linearisation techniques; polynomials; power amplifiers; 2D memory polynomial model; 2D orthogonal polynomials; DPD; MP model; closed form expressions; concurrent dual-band digital predistortion; finite precision processing; linearization performance; power amplifiers; uniform amplitude distribution; Accuracy; Computational modeling; Distortion; Dual band; Mathematical model; Polynomials; Predistortion; Dual-band; orthogonal polynomial; power amplifiers; predistortion;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest (IMS), 2013 IEEE MTT-S International

Conference_Location

Seattle, WA

ISSN

0149-645X

Print_ISBN

978-1-4673-6177-4

Type

conf

DOI

10.1109/MWSYM.2013.6697474

Filename

6697474