Signal-to-noise ratio gain in stochastic resonators driven by coloured noises

We considered two threshold stochastic resonators, the level-crossing detector (LCD) and the Schmitt trigger, driven by a periodic pulse train plus 1/f(K)-type coloured noises, and we have studied the dependence of the SNR gain maxima on the spectral exponent K of the random excitation. (C) 2003 Elsevier B.V. All rights reserved.