Application of stochastic resonance theory in weak underwater acoustic signal detection

This paper researches the application of stochastic resonance theory in weak underwater acoustic signal detection, and derives the conditions to maximum switching rate of bistable system. Considering the character of underwater acoustic signals, this paper studies the bistable system parameter adjustment and signal frequency compression technology. Through digital signal processing experiments, it contrasts the stochastic resonance system and traditional digital filter, proves the superiority of stochastic resonance theory, which may be widely used in weak underwater acoustic signal detection.