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The Desynchronization Of The Multi-weight Coupled Neural Network Is Desynchronized With The Finite Time

Posted on:2020-11-10Degree:MasterType:Thesis
Country:ChinaCandidate:J HouFull Text:PDF
GTID:2438330626463979Subject:Computer Science and Technology
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In recent years,neural network has attracted more and more attention because of its wide applications in signal processing,optimization,associative memory and other fields.As a special complex network,coupled neural network is composed of several interactive neural networks.Therefore,the discussion of dynamic behaviors in coupled neural networks has become a hot topic.However,most of the existing works on coupled neural networks only considered single-weight network models.In fact,most network models in the real world are more accurately represented by multi-weighted complex dynamic networks,such as social networks,communication networks,transportation networks,etc.,which are coupled by nodes in the form of multiple coupling.Therefore,it is of great significance to study the multi-weighted coupled neural networks.In this paper,two multi-weighted coupled neural network models with and without time-varying delays are proposed respectively,and the anti-synchronization and finitetime anti-synchronization of the considered networks are studied by using Lyapunov stability theory and some inequality techniques.Firstly,the anti-synchronization problem of multi-weighted coupled neural networks is analyzed by constructing suitable Lyapunov functional and using some inequality techniques,and the anti-synchronization conditions of the network are given.At the same time,by designing appropriate pinning adaptive controller to control a part of nodes in the network,we further study the antisynchronization problem of the network,and obtain some effective criteria to ensure that the network achieves pinning anti-synchronization.Secondly,because the neural network is realized by electronic circuits,when electrons are transmitted in a non-uniform magnetic field,the reaction-diffusion phenomenon is inevitable.Therefore,a multiweighted coupled reaction-diffusion neural network model with reaction-diffusion term is proposed,and its anti-synchronization analysis and control are carried out.In addition,in many practical applications,it is usually necessary to achieve anti-synchronization within a limited time interval.Therefore,this paper further studies the finite-time antisynchronization problem of multi-weighted coupled neural networks.As we all know,time delay inevitably occurs in practical applications such as communication,information conversion and biological systems.In particular,there is usually a time delay during signal processing and transmission in most circuits.Therefore,we further consider the anti-synchronization and finite-time anti-synchronization of multi-weighted coupled neural networks with time-varying delays.Finally,we give several numerical simulation examples to prove the validity and correctness of the results.
Keywords/Search Tags:Multi-weighted coupled neural networks, Time-varying delay, Reaction-diffusion term, Anti-synchronization, Finite-time anti-synchronization
PDF Full Text Request
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