一种用于射频功率放大器自适应控制的RLS算法

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An adaptive RLS algorithm applied to RF power amplifiers

Lü Yong-sheng;WANG Jia-li;WANG Yun-fei

(School of Mechano-electronic Engineering, Xidian Univ., Xi'an 710071, China)

Received:1900-01-01 Revised:1900-01-01 Online:2004-12-20 Published:2004-12-20

Abstract

Abstract: An adaptive predistorter for linearizing RF power amplifiers is studied and analytical and simulation results are presented. Analysis indicates that the adjacent channel power is a quadratic function of predistorter efficients. A new optimization method is given which uses the predicted ACP surface to obtain fast convergence and simulation results show that a 20dB reduction in the third IMD and a 10dB reduction in the quatic IMD are achievable.

Key words: power amplifiers, predistortion, digital signal processing, RLS

CLC Number:

TN911.72

Lü Yong-sheng;WANG Jia-li;WANG Yun-fei.

An adaptive RLS algorithm applied to RF power amplifiers

[J].J4, 2004, 31(6): 939-942.

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An adaptive RLS algorithm applied to RF power amplifiers

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