ENHANCING USEFULNESS OF APERIODIC STOCHASTIC RESONANCE IN THE IMPROVEMENT OF BSS APPLIED ON AN EDDY CURRENT SENSOR NONLINEAR RESPONSE

M. Haritopoulos, Y. Naudet, A. Billat
michel.haritopoulos, yannick.naudet, alain.billat@univ­reims.fr

This paper reports a form of aperiodic stochastic res­ onance (ASR) observed in a specific experimental con­ text. This term is attributed to a phenomenon wherein the response of a nonlinear system to a periodic or ape­ riodic (deterministic or random) input is optimized by the assistance of noise. Here we provide some elements of how ASR can be incorporated in signal processing methods. By coupling it with BSS, we improve the frequency response of an eddy current proximity sen­ sor. Experimental results are presented to validate our approach.