NovelWoods–Saxon stochastic resonance system for weak signal detection
Zhou Yong-Hui, Xu Xue-Mei †, Yin Lin-Zi, Ding Yi-Peng, Ding Jia-Feng, Sun Ke-Hui
       

(a) The original sinusoidal signal and its spectrum. (b) The noise signal and its spectrum. (c)–(g) The output signals with their spectra processed by the E function, WS, SR, TSR, and EWSSR, respectively, for D = 2.0.