Wavelet network with hybrid algorithm to linearize high power amplifiers

被引：0

作者：

Rodriguez, Nibaldo ^{[1
]}

Cubillos, Claudio ^{[1
]}

机构：

[1] Pontif Univ Catholic Valparaiso, Av Brasil 2241, Valparaiso, Chile

来源：

ADVANCES IN ARTIFICIAL LIFE, PROCEEDINGS | 2007年 / 4648卷

关键词：

wavelet network; linearizing; power amplifier; digital modulation;

D O I：

暂无

中图分类号：

TP18 [人工智能理论];

学科分类号：

081104 ; 0812 ; 0835 ; 1405 ;

摘要：

This paper propose a linearizing scheme based on wavelet networks to reduce nonlinear distortion introduced by a high power amplifier over 256QAM signals. Parameters of the proposed linearizer are estimated by using a hybrid algorithm, namely least square and gradient descent. Computer simulation results confirm that once the 256QAM signals are amplified at an input back off level of 0 dB, there is a reduction of 29 dB spectrum re-growth. In addition proposed linearizing scheme has a low complexity and fast convergence.

引用

页码：1016 / +

页数：2

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