On the use of stochastic resonance in sine detection

Authors:
Steeve Zozor;Pierre-Olivier Amblard
Affiliations:
LIS-ENSIEG, CNRS UMR 5083, B.P. 46, 2, Rue de la Houille Blanche, 38402 Saint Martin d'Hères Cedex, France;LIS-ENSIEG, CNRS UMR 5083, B.P. 46, 2, Rue de la Houille Blanche, 38402 Saint Martin d'Hères Cedex, France
Venue:
Signal Processing
Year:
2002

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Abstract

This paper deals with the use of stochastic resonance (SR) for detection purposes. The nonlinear physical phenomenon of SR generally occurs in dynamical bistable systems excited by a noisy sine: such systems are able to force cooperation between sine and noise such that the noise amplifies the sine. Because of this non-intuitive effect, the use of SR can be envisaged to detect small amplitude sines corrupted by additive noise. In this paper we recall some basics of detection and then show why SR can be used in sine detection context. After recalling some basics of SR in discrete time, we show how to use SR in a detection scheme.