Abstract (may include machine translation)
Stochastic resonator systems with input and/or output 1/f noise have been studied. Disordered magnets/dielectrics serve as examples for the case of output 1/f noise with white noise (thermal excitation) at the input of the resonators. Due to the fluctuation-dissipation theorem, the output noise is related to the out-of-phase component of the periodic peak of the output spectrum. Spin glasses and ferromagnets serve as interesting examples of coupled stochastic resonators. A proper coupling can lead to an extremely large signal-to-noise ratio. As a model system, a l/f-noise-driven Schmitt trigger has been investigated experimentally to study stochastic resonance with input 1/f noise. Under proper conditions, we have found several new nonlinearity effects, such as peaks at even harmonics, holes at even harmonics, and 1/f noise also in the output spectrum.
Original language | English |
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Pages (from-to) | 451-462 |
Number of pages | 12 |
Journal | Journal of Statistical Physics |
Volume | 70 |
Issue number | 1-2 |
DOIs | |
State | Published - Jan 1993 |
Externally published | Yes |
Keywords
- 1/f noise
- Stochastic resonance
- signal-to-noise ratio