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Frequency domain identification of Hammerstein models

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1 Author(s)
Bai, E.-W. ; Dept. of Electr. & Comput. Eng., Iowa Univ., Iowa City, IA, USA

Discusses Hammerstein model identification in the frequency domain using sampled input-output data. By exploring the fundamental frequency and harmonics generated by the unknown nonlinearity, we propose a frequency domain approach and show its convergence for both the linear and nonlinear subsystems in the presence of noise. No a priori knowledge of the structure of the nonlinearity is required and the linear part can be nonparametric.

Published in:

Automatic Control, IEEE Transactions on  (Volume:48 ,  Issue: 4 )