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Effect of inertia mass on the stochastic resonance driven by a multiplicative dichotomous noise |
Li Peng(李鹏), Nie Lin-Ru(聂林如)†, Huang Qi-Rui(黄奇瑞), and Sun Xing-Xiu(孙兴修) |
Faculty of Science, Kunming University of Science and Technology, Kunming 650093, China |
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Abstract A stochastic system driven by dichotomous noise and periodic signal is investigated in the under-damped case. The exact expressions of output signal amplitude and signal-to-noise ratio (SNR) of the system are derived. Numerical results indicate that the inertial mass greatly affects the output signal amplitude and the SNR. Regardless of whether the noise is symmetric or asymmetric, the inertial mass can influence the phenomenon of stochastic resonance (SR) of the system, leading to two types of resonance phenomenon:one is coherence-resonance-like of the SNR with inertial mass, the other is the SR of the SNR with noise intensity.
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Received: 09 September 2011
Revised: 27 April 2012
Accepted manuscript online:
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PACS:
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05.40.Ca
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(Noise)
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02.50.Ey
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(Stochastic processes)
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Fund: Project supported by the National Natural Science Foundation of China (Grant No. 10847139) and the Yunnan Provincial Foundation, China (Grant Nos. 2009CD036 and 08Z0015). |
Cite this article:
Li Peng(李鹏), Nie Lin-Ru(聂林如), Huang Qi-Rui(黄奇瑞), and Sun Xing-Xiu(孙兴修) Effect of inertia mass on the stochastic resonance driven by a multiplicative dichotomous noise 2012 Chin. Phys. B 21 050503
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