Title :
A 2-D Cochlea with Hopf Oscillators
Author :
Hamilton, Tara Julia ; Jin, Craig ; Tapson, Jonathan ; Van Schaik, André
Author_Institution :
Sydney Univ., Sydney
Abstract :
In this paper we present the circuits for a 2-D silicon cochlea whose basilar membrane resonant elements are constructed using oscillators whose dynamic behaviour is governed by the Hopf differential equation. By using Hopf oscillators we are able to model some of the behaviour of the outer hair cells (OHCs) whose action is responsible for the cochlea´s nonlinear behaviour.
Keywords :
bifurcation; biomembranes; cellular biophysics; differential equations; ear; nonlinear dynamical systems; oscillators; physiological models; 2-D silicon cochlea; Hopf differential equation; Hopf oscillator; auditory modelling; basilar membrane; cochlea nonlinear behaviour; log-domain circuits; outer hair cell; Bifurcation; Biomembranes; Differential equations; Hair; Limit-cycles; Mathematics; Oscillators; RLC circuits; Resonant frequency; Silicon; Hopf oscillator; auditory modelling; log-domain circuits; silicon cochlea;
Conference_Titel :
Biomedical Circuits and Systems Conference, 2007. BIOCAS 2007. IEEE
Conference_Location :
Montreal, Que.
Print_ISBN :
978-1-4244-1524-3
Electronic_ISBN :
978-1-4244-1525-0
DOI :
10.1109/BIOCAS.2007.4463316
