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Conference Paper

Adaptive Identification of Nonlinear Models Using Orthogonal Nonlinear Functions

Authors: Romoli, Laura; Gasparini, Michele; Cecchi, Stefania; Primavera, Andrea; Piazza, Francesco

AES Conference: 48th International Conference: Automotive Audio · Paper 2-1 · September 2012

Abstract

System identification plays an important role in the field of digital audio systems. While the linear con-

volution operation is suitable for linear systems, nonlinear models have to be introduced for modeling the

majority of real-world devices. In this paper, a novel approach for the estimation of nonlinear system mod-

els is proposed based on the introduction of suitable orthogonal nonlinear functions and frequency-domain

adaptive filtering algorithm. Experimental results confirm the effectiveness of the approach, making also

comparisons with an analogous approach based on a polynomial structure.

Details

Published in
AES Conference: 48th International Conference: Automotive Audio
Paper number
2-1
Publication date
September 6, 2012
Session subject
System Architecture and Hardware - Automotive Loudspeaker Design
Affiliation
Università Politecnica delle Marche, Ancona, Italy (See document for exact affiliation information.)
Type
Conference Paper