New passivity results for uncertain discrete-time stochastic neural networks with mixed time delays

New passivity results for uncertain discrete-time stochastic neural networks with mixed time delays
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具有混合时滞的不确定离散时间随机神经网络的新无源性结果

DOI:
10.1016/j.neucom.2010.04.019
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发表时间:
2010-10
期刊:
影响因子:
6
通讯作者:
Huijun Gao
Huijun Gao
中科院分区:
计算机科学2区
文献类型:
--
作者:
Hongyi Li;Chuan Wang;Peng Shi;Huijun Gao

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研究了一类具有混合时滞的不确定离散时间随机神经网络的无源性分析问题。假设混合时滞为离散分布时滞,不确定性为时变范数有界参数不确定性。通过构造一种新的Lyapunov泛函,并引入适当的自由权重矩阵,得到了时滞相关无源性分析准则。此外,与已有的无源性结果不同,该方法通过估计Lyapunov泛函导数的上界来处理与离散时变时滞有关的附加有用项。这些准则可以在凸优化问题的框架下展开,然后通过标准的数值软件进行求解。最后,给出了一个数值算例,验证了所提结果的有效性。
This paper investigates the problem of passivity analysis for a class of uncertain discrete-time stochastic neural networks with mixed time delays. Here the mixed time delays are assumed to be discrete and distributed time delays and the uncertainties are assumed to be time-varying norm-bounded parameter uncertainties. By constructing a novel Lyapunov functional and introducing some appropriate free-weighting matrices, delay-dependent passivity analysis criteria are derived. Furthermore, the additional useful terms about the discrete time-varying delay will be handled by estimating the upper bound of the derivative of Lyapunov functionals, which is different from the existing passivity results. These criteria can be developed in the frame of convex optimization problems and then solved via standard numerical software. Finally, a numerical example is given to demonstrate the effectiveness of the proposed results.
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