However, when the input noise is the double-peak Gaussian mixture noise, the noise can improve the signal correlation for the subthreshold signal and the suprathreshold signal, i. e.

• 而当输入噪声为双峰高斯混合噪声时，不仅输入信号在阈下时随机谐振现象有时存在，而且输入信号在阈上时噪声往往也能改善信号的相关性，即阈上随机谐振现象存在。