Stochastic resonance and antiresonance in monostable systems
| Autor: | N. V. Agudov, A. V. Krichigin |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
Physics
Nuclear and High Energy Physics Bistability Stochastic resonance Quantitative Biology::Molecular Networks Astronomy and Astrophysics Statistical and Nonlinear Physics White noise Dynamical system Antiresonance Signal Electronic Optical and Magnetic Materials Nonlinear system Harmonic Statistical physics Electrical and Electronic Engineering |
| Zdroj: | Radiophysics and Quantum Electronics. 51:812-824 |
| ISSN: | 1573-9120 0033-8443 |
| DOI: | 10.1007/s11141-009-9085-3 |
| Popis: | We study characteristics of the output signal in a nonlinear monostable inertial dynamical system with the harmonic signal and Gaussian white noise supplied additively to the input. Several types of monostable systems are examined, and analytical expressions for the output-signal power amplification and signal-to-noise ratio are obtained for such systems for the first time. The main attention is paid to the stochastic resonance and antiresonance phenomena, which manifest themselves as nonmonotonic dependences of the mentioned characteristics on the input-noise intensity. In particular, it is shown for the first time that the output signal-to-noise ratio may have a maximum as a function of the input-noise intensity in a monostable system. This corresponds to the classical definition of stochastic resonance, which earlier was only observed in bistable (multistable) systems. |
| Databáze: | OpenAIRE |
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