TY - JOUR
T1 - Stochastic resonance in a bias monostable system driven by a periodic rectangular signal and uncorrelated noises
AU - Yao, Mingli
AU - Xu, Wei
AU - Ning, Lijuan
PY - 2012/1
Y1 - 2012/1
N2 - The stochastic resonance in a bias monostable system driven by a periodic rectangular signal and uncorrelated noises is investigated by using the theory of signal-to-noise (SNR) in the adiabatic limit. The analytic expression of the SNR is obtained for arbitrary signal amplitude without being restricted to small amplitudes. The SNR is a nonmonotonic function of intensities of multiplicative and additive noises and the noise intensity ratio R=D/Q, so stochastic resonance exhibits in the bias monostable system. We investigate the effect of any system parameter (such as D,Q,R,r) on the SNR. It is shown that the SNR is a nonmonotonic function of the static asymmetry r, also; the SNR is decreased when |r| is increased. Moreover, the SNR is increased when the noise intensity ratio R=D/Q is increased.
AB - The stochastic resonance in a bias monostable system driven by a periodic rectangular signal and uncorrelated noises is investigated by using the theory of signal-to-noise (SNR) in the adiabatic limit. The analytic expression of the SNR is obtained for arbitrary signal amplitude without being restricted to small amplitudes. The SNR is a nonmonotonic function of intensities of multiplicative and additive noises and the noise intensity ratio R=D/Q, so stochastic resonance exhibits in the bias monostable system. We investigate the effect of any system parameter (such as D,Q,R,r) on the SNR. It is shown that the SNR is a nonmonotonic function of the static asymmetry r, also; the SNR is decreased when |r| is increased. Moreover, the SNR is increased when the noise intensity ratio R=D/Q is increased.
KW - Bias monostable system
KW - Signal-to-noise ratio
KW - Stochastic resonance
UR - http://www.scopus.com/inward/record.url?scp=82255186864&partnerID=8YFLogxK
U2 - 10.1007/s11071-011-9980-y
DO - 10.1007/s11071-011-9980-y
M3 - 文章
AN - SCOPUS:82255186864
SN - 0924-090X
VL - 67
SP - 329
EP - 333
JO - Nonlinear Dynamics
JF - Nonlinear Dynamics
IS - 1
ER -