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Type: Journal article
Title: Fisher-information condition for enhanced signal detection via stochastic resonance
Author: Duan, F.
Chapeau-Blondeau, F.
Abbott, D.
Citation: Physical Review E. (Statistical, Nonlinear, and Soft Matter Physics), 2011; 84(5):1-5
Publisher: American Physical Soc
Issue Date: 2011
ISSN: 1539-3755
Statement of
Fabing Duan, François Chapeau-Blondeau, Derek Abbott
Abstract: Various situations where a signal is enhanced by noise through stochastic resonance are now known. This paper contributes to determining general conditions under which improvement by noise can be a priori decided as feasible or not. We focus on the detection of a known signal in additive white noise. Under the assumptions of a weak signal and a sufficiently large sample size, it is proved, with an inequality based on the Fisher information, that improvement by adding noise is never possible, generically, in these conditions. However, under less restrictive conditions, an example of signal detection is shown with favorable action of adding noise.
Keywords: Stochastic Processes; Sample Size; Nonlinear Dynamics
Rights: ©2011 American Physical Society
RMID: 0020114970
DOI: 10.1103/PhysRevE.84.051107
Appears in Collections:Electrical and Electronic Engineering publications

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