Delay-dependent exponential state estimators for stochastic neural networks of neutral type with both discrete and distributed delays

Tong Wang, Yongsheng Ding, Lei Zhang and Kuangrong Hao

International Journal of Systems Science, 2015, vol. 46, issue 4, 670-680

Abstract: This paper considered the state estimation for stochastic neural networks of neutral type with discrete and distributed delays. By using available output measurements, the state estimator can approximate the neuron states, and the asymptotic property of the state error is mean square exponential stable and also almost surely exponential stable in the presence of discrete and distributed delays. Under the Lipschitz assumptions for the activation functions and the measurement nonlinearity, a delay-dependent linear matrix inequality (LMI) criterion is proposed to guarantee the existence of the desired estimators by constructing an appropriate Lyapunov-Krasovskii function. It is shown that the existence conditions and the explicit expression of the state estimator can be parameterised in terms of the solution to a LMI. Finally, two numerical examples are presented to demonstrate the validity of the theoretical results and show that the theorem can provide less conservative conditions.

Date: 2015
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DOI: 10.1080/00207721.2013.794908

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