When the input noise is the single-peak Gaussian noise, the noise can improve the signal correlation only for the sub-threshold signal, i.e. subthreshold stochastic resonance (SR) exists.
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- 当输入噪声为单峰高斯噪声时,输入信号在阈下时噪声才能改善信号的相关性,即随机谐振现象存在。