Summary
the 2014 International Symposium on Nonlinear Theory and its Applications
2014
Session Number:D1L-E
Session:
Number:D1L-E4
A chaotic spiking oscillator that acts as a filter of spike trains
Seiji Uenohara, Takashi Morie,
pp.723-726
Publication Date:2014/9/14
Online ISSN:2188-5079
Summary:
We propose a chaotic spiking oscillator model that functions as a filter of spike trains, in which input/output signals are spike pulses. The oscillator receives periodic spike inputs, and the internal state of an oscillator is mapped by a nonlinear function, otherwise the internal state increases with a constant rate. The oscillator outputs a spike pulse when the internal state exceeds a threshold for firing. This model uses the input-spike interval as a bifurcation parameter; that is the input-spike interval changes an attractor of the internal state. If the firing threshold is outside of the range of the internal state determined by the attractor, the oscillator outputs no spike. The oscillator acts as a filter of spike trains by this characteristic. In this study, we show that the oscillator acts as a low pass filter, a band stop filter, and a filter combining both characteristics by changing the firing threshold.