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This work presents a Multiple Input Single Output (MISO) nonlinear model in combination with sine-sweep signals as a method for nonlinear system identification. The method is used for identification of loudspeaker nonlinearities and can be applied to nonlinearities of any audio components. It extends the method based on nonlinear convolution presented by Farina, providing a nonlinear model that allows to simulate the identified nonlinear system. The MISO model consists of a parallel combination of nonlinear branches containing linear filters and memory-less power-law distortion functions. Once the harmonic distortion components are identified by the method of Farina, the linear filters of the MISO model can be derived. The practical application of the method is demonstrated on a loudspeaker.
Author (s): Kadlec, Frantisek; Lotton, Pierrick; Novak, Antonin; Simon, Laurent
Affiliation:
Czech Technical University;Universite du Maine, LAUM
(See document for exact affiliation information.)
AES Convention: 124
Paper Number:7441
Publication Date:
2008-05-06
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Session subject:
Software, Instrumentation, and Measurement
Permalink: https://aes2.org/publications/elibrary-page/?id=14571
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Kadlec, Frantisek; Lotton, Pierrick; Novak, Antonin; Simon, Laurent; 2008; A New Method for Identification of Nonlinear Systems Using MISO Model with Swept-Sine Technique: Application to Loudspeaker Analysis [PDF]; Czech Technical University;Universite du Maine, LAUM; Paper 7441; Available from: https://aes2.org/publications/elibrary-page/?id=14571
Kadlec, Frantisek; Lotton, Pierrick; Novak, Antonin; Simon, Laurent; A New Method for Identification of Nonlinear Systems Using MISO Model with Swept-Sine Technique: Application to Loudspeaker Analysis [PDF]; Czech Technical University;Universite du Maine, LAUM; Paper 7441; 2008 Available: https://aes2.org/publications/elibrary-page/?id=14571
@article{kadlec2008a,
author={kadlec frantisek and lotton pierrick and novak antonin and simon laurent},
journal={journal of the audio engineering society},
title={a new method for identification of nonlinear systems using miso model with swept-sine technique: application to loudspeaker analysis},
year={2008},
number={7441},
month={may},}
TY – paper
TI – A New Method for Identification of Nonlinear Systems Using MISO Model with Swept-Sine Technique: Application to Loudspeaker Analysis
AU – Kadlec, Frantisek
AU – Lotton, Pierrick
AU – Novak, Antonin
AU – Simon, Laurent
PY – 2008
JO – Journal of the Audio Engineering Society
VL – 7441
Y1 – May 2008