학술논문

A Novel Ergodic Discrete Difference Equation Cochlear Model: Theoretical Analyses, Reproduction of Mammalian Nonlinear Sound Processing, and Comparison of Implementation
Document Type
Periodical
Source
IEEE Transactions on Circuits and Systems II: Express Briefs IEEE Trans. Circuits Syst. II Circuits and Systems II: Express Briefs, IEEE Transactions on. 71(2):877-881 Feb, 2024
Subject
Components, Circuits, Devices and Systems
Integrated circuit modeling
Mathematical models
Numerical models
Analytical models
Ear
Neuromorphics
Registers
Cochlear model
nonlinear sound processing
discrete difference equation
field programmable gate array
Language
ISSN
1549-7747
1558-3791
Abstract
In this brief, a novel electronic circuit cochlear model, the nonlinear dynamics of which is described by an ergodic discrete difference equation is presented. Based on theoretical and numerical analyses, parameter setting methods are proposed so that the model can reproduce typical nonlinear sound processing functions of mammalian cochleae. Furthermore, the presented model is implemented by a field programmable gate array and its operations are validated by experiments. It is shown that the presented model is more hardware-efficient compared to some conventional electronic circuit cochlear models.