New stability criteria for Cohen–Grossberg neural networks with time delays
New stability criteria for Cohen–Grossberg neural networks with time delays
- Author(s): L. Hu ; H. Gao ; P. Shi
- DOI: 10.1049/iet-cta.2008.0213
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- Author(s): L. Hu 1 ; H. Gao 1 ; P. Shi 2, 3
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View affiliations
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Affiliations:
1: Space Control and Inertial Technology Research Center, Harbin Institute of Technology, Harbin, People's Republic of China
2: Department of Computing and Mathematical Sciences, University of Glamorgan, Pontypridd, UK
3: School of Engineering and Science, Victoria University, Melbourne, Australia
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Affiliations:
1: Space Control and Inertial Technology Research Center, Harbin Institute of Technology, Harbin, People's Republic of China
- Source:
Volume 3, Issue 9,
September 2009,
p.
1275 – 1282
DOI: 10.1049/iet-cta.2008.0213 , Print ISSN 1751-8644, Online ISSN 1751-8652
The asymptotic stability is investigated for a class of time-delay Cohen–Grossberg neural networks, either with or without parameter uncertainties. By introducing a novel Lyapunov functional with the ideal of delay fractioning, a new criterion of asymptotic stability is derived in terms of a linear matrix inequality (LMI), which can be efficiently solved via standard numerical software. The criterion proves to be less conservative and the conservatism could be notably reduced by thinning the delay fractioning. Two examples are provided to demonstrate the less conservatism and effectiveness of the proposed stability conditions.
Inspec keywords: uncertain systems; delays; Lyapunov methods; asymptotic stability; linear matrix inequalities; neurocontrollers
Other keywords:
Subjects: Distributed parameter control systems; Linear algebra (numerical analysis); Neurocontrol; Stability in control theory
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