正弦周期信号的随机共振，不同于以往微弱信号检测中的抑制噪声，随机共振能通过噪声加强信号传输能力- We present the numerical method to solve the bistable SR model based on Runge-Kutta

algorithm, and propose a new kind of approach for detecting weak signal, which can effectively detect both period and aperiodic

weak signals corrupted by the strong noise background.