PATTERN DYNAMICS IN A NONLINEAR ELECTRICAL LATTICE

Abstract

In this paper, we present experiments using a nonlinear electrical line, modeling the FitzHugh–Nagumo equation, without recovery term. Different patterns are studied according to the parameters of this medium and initial conditions. We then propose to apply these results to the domain of signal processing. We show that erosion and dilation of a binary signal, two kinds of binarization — one depending on an amplitude threshold, the other on an energetical threshold — and nonlinear filtering allowing noise removal can be obtained in the same medium.