Original Articles |
|
|
|
|
Responses of a Noisy Excitable System to External Signals with Different Periods |
JIA Xun;ZHOU Lu-Qun;OUYANG Qi |
School of Physics, Peking University, Beijing 100871 |
|
Cite this article: |
JIA Xun, ZHOU Lu-Qun, OUYANG Qi 2004 Chin. Phys. Lett. 21 435-438 |
|
|
Abstract The behaviour of an excitable system under Gaussian white noise and external periodic forcing is systematically studied. In a large range of noise intensity, the n:1 phase locking patterns are obtained for certain ranges of the input periods, where n input periods give one spike. In the phase locking regimes, the system presents low noise-to-signal ratios and shows better regularities. Out of the regimes the system behaves less regularly and the relations between the noise-to-signal ratio and the noise intensity exhibit typical stochastic resonance phenomena. At a higher noise level, the system shows the characteristic behaviour of the noise.
|
Keywords:
05.40.Ca
05.45.-a
87.10.+e
|
|
Published: 01 March 2004
|
|
|
|
|
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|