Abstract Inputting a periodic signal mixed with white noise into a bistable system, we find that the fluctuation distribution in the time series of the output is strongly inhomogeneous. In certain phase part fluctuation is very low under the stochastic resonance condition, and consequently, the signal-to-noise ratio (SNR) there is much higher than that of the input. This mechanism can be used to design a nonlinear receiver to extract the signed from noise with SNR three times higher than the largest SNR obtained so far by the optimal linear filter.
Received: 28 July 1993
Accepted manuscript online:
Fund: Project supported by the National Basic Research Project "Nonlinear Science" and the National Natural Science Foundation of China.
Cite this article:
WEN XIAO-DONG (温孝东), HU GANG (胡岗), YANG CHUN-YUAN (杨春元), LI RONG (李蓉), GONG DE-CHUN (龚德纯), WANG FU-ZHONG (王辅忠) INHOMOGENEOUS FLUCTUATION DISTRIBUTION IN THE OUTPUT OF STOCHASTIC RESONANCE SYSTEMS AND ITS APPLICATION 1994 Acta Physica Sinica (Overseas Edition) 3 667
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