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https://hdl.handle.net/2440/46791
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Type: | Journal article |
Title: | Signal-to-noise ratio of a dynamical saturating system: Switching from stochastic resonator to signal processor |
Author: | Chapeau-Blondeau, F. Duan, F. Abbott, D. |
Citation: | Physica A: Statistical Mechanics and its Applications, 2008; 387(11):2394-2402 |
Publisher: | Elsevier Science BV |
Issue Date: | 2008 |
ISSN: | 0378-4371 1873-2119 |
Statement of Responsibility: | François Chapeau-Blondeau, Fabing Duan and Derek Abbott |
Abstract: | We consider an isolated dynamical saturating system for processing a noisy sinusoidal signal, and evaluate its performance with the measure of the signal-to-noise ratio. The considered system is linear for small inputs, but exhibits saturation in its response for large inputs. This nonlinearity displays the nonlinear phenomenon of stochastic resonance for a large biased sinusoid in appropriate system parameter regions. Without the stochastic resonance phenomenon, this dynamical saturating system can achieve a signal-to-noise ratio gain exceeding unity for a noisy unbiased sinusoid. These numerical results manifest the nonlinearities and the signal-processing ability of this system acting as a stochastic resonator or a signal processor. © 2008 Elsevier Ltd. All rights reserved. |
Description: | Copyright © 2008 Elsevier Ltd All rights reserved. |
DOI: | 10.1016/j.physa.2008.01.032 |
Description (link): | http://www.elsevier.com/wps/find/journaldescription.cws_home/505702/description#description |
Published version: | http://dx.doi.org/10.1016/j.physa.2008.01.032 |
Appears in Collections: | Aurora harvest 6 Electrical and Electronic Engineering publications |
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