Stochastic resonance (SR) is a counterintuitive phenomenon of nonlinear dynamic systems wherein the noise (stochastic force) plays a constructive role. This phenomenon has then attracted much attention in the past two decades, and it has been observed that SR can occur in a wide variety of systems. With the development of SR, it has far been found to account for many natural phenomena and shown a large number of applications in different areas of technology, among which signal processing via stoc...