STOCHASTIC RESONANCE DRIVEN BY GAUSSIAN MULTIPLICATIVE NOISE

An analytically solvable linear model for stochastic resonance driven by multiplicative noise of the Gaussian type is presented. A maximum o f the signal-to-noise ratio is observed both as a function of the nois e intensity and as a function of the autocorrelation time. The maximum appears for low frequencies of the applied external oscillating field immediately as soon as noise correlation is introduced, and disappear s as the correlation or the frequency is increased. No resonance occur s for white noise.