Title :
An Adaptive Iterative Algorthm for System Identification
Author :
Li, Huan ; Pan, Chengsheng
Author_Institution :
Sch. of Inf. Sci. & Eng., Shenyang Ligong Univ., Shenyang, China
Abstract :
According to the nonlinear amplification characteristic with memory effection of power amplifier (PA) in WCDMA systems, digital predistorter model is established and an identification algorithm for Wiener PA model with memory is proposed. The method can avoid the local convergence problem of NG algorithm effectively. Moreover it has a very good suppression of signal spectral regrowth. Theoretical analysis and computer simulation verified the effectiveness and practicability of the algorithm.
Keywords :
code division multiple access; iterative methods; power amplifiers; WCDMA systems; adaptive iterative algorithm; digital predistorter; memory effection; nonlinear amplification; power amplifier; system identification; adaptive identification; algorithm; power amplifier; predistorter modeling;
Conference_Titel :
Intelligent Networks and Intelligent Systems (ICINIS), 2010 3rd International Conference on
Conference_Location :
Shenyang
Print_ISBN :
978-1-4244-8548-2
Electronic_ISBN :
978-0-7695-4249-2
DOI :
10.1109/ICINIS.2010.27
