Title :
An adaptive nonlinear prefilter for compensation of distortion in nonlinear systems
Author :
Lim, Yong Hoon ; Cho, Yong Soo ; Cha, Il Whan ; Youn, Dae Hee
Author_Institution :
LG Corporate Inst. of Technol., Seoul, South Korea
fDate :
6/1/1998 12:00:00 AM
Abstract :
This article concerns the linearization of a nonlinear system by connecting a nonlinear Volterra prefilter tandemly with the nonlinear system and by adaptively adjusting the coefficients of the prefilter. “A nonlinear filtered-x LMS algorithm” for updating the coefficients of a nonlinear prefilter, as proposed, is shown to be viewed as an extension of the well-known filtered-x LMS algorithm
Keywords :
Volterra series; adaptive filters; filtering theory; least mean squares methods; linearisation techniques; nonlinear filters; nonlinear systems; Volterra series; adaptive nonlinear prefilter; coefficients updating; nonlinear Volterra prefilter; nonlinear filtered-x LMS algorithm; nonlinear system distortion compensation; nonlinear system linearization; prefilter coefficients; Adaptive algorithm; Adaptive filters; Filtering theory; Joining processes; Least squares approximation; Nonlinear distortion; Nonlinear filters; Nonlinear systems; Performance analysis; Signal processing algorithms;
Journal_Title :
Signal Processing, IEEE Transactions on
