2012•Acta Physica SinicaOpen access

Large parameter stochastic resonance of two-dimensional Duffing oscillator and its application on weak signal detection

Yonggang Leng, Lai Zhi-Hui, Fan Sheng-Bo, Gao Yu-Ji

Abstract

In this paper, the stochastic resonance of two-dimensional Duffing oscillator under the adiabatic assumption is studied. For the large parameter condition, we propose the large parameter stochastic resonance of two-dimensional Duffing oscillator, and discuss the relationship between the scale transformation stochastic resonance and the parameter adjustment stochastic resonance. Then we reveal the mechanism of signal detection by Duffing oscillator stochastic resonance in large parameter condition, and extend its application to weak signal detection.

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Key concepts: Stochastic resonance, Duffing equation, Resonance (particle physics), Adiabatic process, SIGNAL (programming language), Physics, Statistical physics, Computer science