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A NEURAL OBSERVER WITH TIME-VARYING LEARNING RATE: ANALYSIS AND APPLICATIONS

Departament of Electrical Engineering, Cinvestav del IPN, Unidad Guadalajara, Av. del Bosque 1145, Colonia el Bajío, Zapopan, 45019, Jalisco, México

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A. Y. ALANIS

CUCEI, Universidad de Guadalajara, Apartado Postal 51-71, Col. Las Aguilas, Zapopan, 45080, Jalisco, Mexico

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E. N. SANCHEZ

Departament of Electrical Engineering, Cinvestav del IPN, Unidad Guadalajara, Av. del Bosque 1145, Colonia el Bajío, Zapopan, 45019, Jalisco, México

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, and

S. CARLOS-HERNANDEZ

Grupo de Recursos Naturales y Energéticos, Cinvestav del IPN, Unidad Saltillo, Carretera Saltillo-Monterrey Km. 13.5, Ramos Arizpe, 25900, Coahuila, México

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https://doi.org/10.1142/S0129065714500117Cited by:10 (Source: Crossref)

Abstract

In this paper, a reduced order neural observer (RONO) with a time-varying learning rate is proposed. The proposed scheme is based on a discrete-time recurrent high order neural network (RHONN) trained with an extended Kalman filter (EKF)-based algorithm. A time-varying learning rate is designed in order to improve the learning of the neuronal network in presence of disturbances and parameter variations. This work includes the stability proof of the time-varying learning. The applicability of the developed observer is illustrated via simulations for a nonlinear anaerobic digestion process.

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