Complex Dynamics in Digital Nonlinear Oscillators: Experimental Analysis and Verification

Author:

Addabbo Tommaso1ORCID,Fort Ada1ORCID,Moretti Riccardo1ORCID,Spinelli Filippo1ORCID,Vignoli Valerio1ORCID

Affiliation:

1. Department of Information Engineering and Mathematics, University of Siena, 53100 Siena, Italy

Abstract

A specific topology of Digital Nonlinear Oscillators (DNOs) has been implemented by using commercial off-the-shelf digital components to experimentally verify and demonstrate the capability of these circuits to support complex dynamics, independently from their implementation technology. In detail, a direct experimental evidence of the DNO dynamical behavior is presented at the analog level with a bifurcation diagram analysis, investigation of periodic and chaotic attractors, and dynamical stability. The autonomous circuit has been investigated as a source of entropy, adopting different figures of merit, including the Lempel–Ziv Complexity, to evaluate the dynamics measured under different operating conditions.

Publisher

MDPI AG

Subject

Electrical and Electronic Engineering,Computer Networks and Communications,Hardware and Architecture,Signal Processing,Control and Systems Engineering

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