Title :
Adaptive RLS algorithm for rational function predistorter
Author :
Yao, Kai ; Niu, Wei ; Wang, Minxi
Author_Institution :
Electromagn. Inst., Southwest Jiaotong Univ., Chengdu, China
Abstract :
An adaptive algorithm (RLS) based on adaptive polar rational function predistortion is presented and can be applied to adaptive linear power amplifiers in mobile transmitters. From the simulation for adaptive rational function predistorter system utilizing a two-tone signal, the complexity of implementation , the performance of convergence rate and the ability of suppressing intermodulation distortion are discussed.
Keywords :
intermodulation distortion; least squares approximations; nonlinear network analysis; power amplifiers; radio transmitters; rational functions; recursive estimation; adaptive RLS algorithm; adaptive linear power amplifiers; adaptive polar rational function predistortion; intermodulation distortion; mobile transmitters; rational function predistorter; two tone signal; Amplitude modulation; Convergence; Electromagnetics; High power amplifiers; Phase distortion; Phase modulation; Power amplifiers; Predistortion; Resonance light scattering; Transmitters;
Conference_Titel :
Microwave Conference Proceedings, 2005. APMC 2005. Asia-Pacific Conference Proceedings
Print_ISBN :
0-7803-9433-X
DOI :
10.1109/APMC.2005.1606954
