期刊
CHAOS
卷 23, 期 3, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4816397
关键词
-
资金
- National Natural Science Foundation of China [50875070]
We investigated the characteristics of the output saturation of the classical continuous bistable system (saturation bistable system) and its impact on stochastic resonance (SR). We further proposed a piecewise bistable SR system (unsaturated bistable system) and developed the expression of signal-to-noise ratio (SNR) using the adiabatic approximation theory. Compared with the saturation bistable system, the SNR is significantly improved in our unsaturated bistable SR system. The numerical simulation showed that the unsaturated bistable system performed better in extracting weak signals from strong background noise than the saturation bistable system. (C) 2013 AIP Publishing LLC.
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