\(\mathcal L_{2}-\mathcal L_{\infty }\) nonlinear system identification via recurrent neural networks. (English) Zbl 1209.93035

Summary: This paper proposes an \(\mathcal L_{2}-\mathcal L_{\infty }\) identification scheme as a new robust identification method for nonlinear systems via recurrent neural networks. Based on linear matrix inequality (LMI) formulation, for the first time, the \(\mathcal L_{2}-\mathcal L_{\infty }\) learning algorithm is presented to reduce the effect of disturbance to an \(\mathcal L_{2}-\mathcal L_{\infty }\) induced norm constraint. New stability results, such as boundedness, input-to-state stability (ISS), and convergence, are established in some senses. It is shown that the design of the \(\mathcal L_{2}-\mathcal L_{\infty }\) identification method can be achieved by solving LMIs, which can be easily facilitated by using some standard numerical packages. A numerical example is presented to demonstrate the validity of the proposed identification scheme.


93B30 System identification
93B36 \(H^\infty\)-control


LMI toolbox
Full Text: DOI


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