State observer for stochastic resonance in bistable system |
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Authors: | Jinming Liu Jian Mao Bin Huang Peiguo Liu |
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Affiliation: | 1. Coll Elect Sci & Engn, National University of Defense Technology, Changsha, China;2. Computer Engineering College, Jimei University, Xiamen, China |
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Abstract: | We investigate numerically stochastic resonance variation in bistable system. Putting signals with different intensities into a bistable system, or adjusting system structural parameters for an input, will produce different motion trajectories. These trajectories contain both chaos and non-chaos parts. We classify these states according to the state of resonance and chaos, and propose a state observer. In this way, bistable system becomes an observable nonlinear system. State observer can provide us with a new perspective that is not available through conventional observation methods. These investigations contribute to nonlinear system optimization, and can also be applied to other interesting noise-induced phenomena. |
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Keywords: | Stochastic resonance Chaos State observer |
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