Input–output gain of collective response in an uncoupled parallel array of saturating dynamical subsystems
✍ Scribed by Fabing Duan; François Chapeau-Blondeau; Derek Abbott
- Publisher
- Elsevier Science
- Year
- 2009
- Tongue
- English
- Weight
- 944 KB
- Volume
- 388
- Category
- Article
- ISSN
- 0378-4371
No coin nor oath required. For personal study only.
✦ Synopsis
We explore the collective response of an uncoupled parallel array of saturating dynamical subsystems to a noisy periodic or random signal. Numerical simulation results show that a parallel array of nonlinear saturating subsystems can enhance the signal transmission via tuning the internal noise intensity and increasing the array size. The input-output gain larger than unity, described by the signal-to-noise ratio for a periodic signal or the correlation coefficient for a random signal, is observed in a form of array stochastic resonance. This stochastic resonance phenomenon can be useful for practical informationprocessing systems.