State Observer for Stochastic Resonance in Bistable System

Publication date: Available online 27 February 2019Source: Physics Letters AAuthor(s): Jinming Liu, Jian Mao, Bin Huang, Peiguo LiuAbstractWe 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.
Source: Physics Letters A - Category: Physics Source Type: research
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