Abstract
We consider the signal detection performance of networks of coupled overdamped nonlinear dynamic elements driven by a weak sinusoidal signal embedded in Gaussian white noise. In the "stochastic resonance" operating regime, (1) the detection performance exhibits a maximum reflecting the maximum in the signal-to-noise ratio, and (2) coupling significantly enhances the detection performance over that of a single element. Coupling-induced linearization allows the nonlinear system to approach the performance of the linear system which is optimal for our signal detection problem.
- Received 16 November 1995
DOI:https://doi.org/10.1103/PhysRevE.53.R2021
©1996 American Physical Society
