Improvement in the linearity of a LINC transmitter using genetic algorithms

被引：0

作者：

Garcia-Ducar, Paloma ^{[1
]}

de Mingo, Jesus ^{[1
]}

Valdovinos, Antonio ^{[1
]}

机构：

[1] Univ Zaragoza, Aragon Inst Engn Res 13A, Dept Elect Engn & Commun, E-50009 Zaragoza, Spain

来源：

IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS | 2007年 / 6卷 / 07期

关键词：

LINC transmitter; genetic algorithm; imbalances correction; amplifier linearization;

D O I：

10.1109/TWC.2007.05906

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper proposes an automatically-adjusted linearization method based on the well-known linearization technique LINC (Linear amplification using Nonlinear Components) applied to the base station transmitter. A correction method of the gain and phase imbalances between both amplifying branches in a LINC transmitter is proposed to reduce the adjacent channel interference. A simple architecture is designed to compensate the unmatching between both branches being the, adjusting coefficients calculated by means of a genetic algorithm. Several nonidealities; are included in the analysis to deal with a realistic model, such as quadrature modulator imbalances, reconstruction filters and quantization error.

引用

页码：2379 / 2383

页数：5

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