Ultra-high-frequency piecewise-linear chaos using delayed feedback loops.


Journal Article

We report on an ultra-high-frequency (>1 GHz), piecewise-linear chaotic system designed from low-cost, commercially available electronic components. The system is composed of two electronic time-delayed feedback loops: A primary analog loop with a variable gain that produces multi-mode oscillations centered around 2 GHz and a secondary loop that switches the variable gain between two different values by means of a digital-like signal. We demonstrate experimentally and numerically that such an approach allows for the simultaneous generation of analog and digital chaos, where the digital chaos can be used to partition the system's attractor, forming the foundation for a symbolic dynamics with potential applications in noise-resilient communications and radar.

Full Text

Cited Authors

  • Cohen, SD; Rontani, D; Gauthier, DJ

Published Date

  • December 2012

Published In

Volume / Issue

  • 22 / 4

Start / End Page

  • 043112 -

PubMed ID

  • 23278047

Pubmed Central ID

  • 23278047

Electronic International Standard Serial Number (EISSN)

  • 1089-7682

International Standard Serial Number (ISSN)

  • 1054-1500

Digital Object Identifier (DOI)

  • 10.1063/1.4766593


  • eng