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A Method for Tracking the Time Evolution of Steady-State Evoked Potentials
Published on: May 25, 2019
Exponential stabilization of delayed recurrent neural networks: A state estimation based approach
He Huang1, Tingwen Huang, Xiaoping Chen
1School of Electronics and Information Engineering, Soochow University, Suzhou 215006, PR China.
Summary
This study addresses the stabilization of delayed recurrent neural networks using state estimation. A new method ensures global exponential stability for these complex systems, even with limited state measurements.
Area of Science:
- Control Theory
- Computational Neuroscience
- Artificial Intelligence
Background:
- Delayed recurrent neural networks (DRNNs) present significant control challenges due to inherent time delays.
- Limited observability of neuron states complicates the direct application of traditional stabilization techniques.
- Stabilization is crucial for reliable operation and predictable behavior in DRNN applications.
Purpose of the Study:
- To develop a state estimation-based approach for stabilizing DRNNs with time delays.
- To address the challenge of unmeasurable neuron states in the stabilization problem.
- To provide a robust method applicable to DRNNs exhibiting complex behaviors like chaos.
Main Methods:
- Formulation of an augmented system incorporating state estimation.
- Derivation of a sufficient condition for global exponential stability.
- Utilization of a decoupling technique to design controller and state estimator gains via linear matrix inequalities (LMIs).
Main Results:
- A novel condition guaranteeing global exponential stability for the augmented system is established.
- Controller and state estimator gain matrices are successfully computed using LMIs.
- The method's effectiveness is demonstrated on a chaotic delayed neural network.
Conclusions:
- The proposed state estimation-based method effectively stabilizes delayed recurrent neural networks.
- The approach overcomes limitations posed by unmeasurable states.
- The developed technique offers a practical solution for controlling complex delayed neural systems.
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