Ordinal patterns in the Duffing oscillator: Analyzing powers of characterization

Autor: Arjendu K. Pattanayak, Andrés Aragoneses, Ivan Gunther
Rok vydání: 2021
Předmět:
Zdroj: Chaos: An Interdisciplinary Journal of Nonlinear Science. 31:023104
ISSN: 1089-7682
1054-1500
DOI: 10.1063/5.0037999
Popis: Ordinal Patterns are a time-series data analysis tool used as a preliminary step to construct the Permutation Entropy which itself allows the same characterization of dynamics as chaotic or regular as more theoretical constructs such as the Lyapunov exponent. However ordinal patterns store strictly more information than Permutation Entropy or Lyapunov exponents. We present results working with the Duffing oscillator showing that ordinal patterns reflect changes in dynamical symmetry invisible to other measures, even Permutation Entropy. We find that these changes in symmetry at given parameter values are correlated with a change in stability at neighboring parameters which suggests a novel predictive capability for this analysis technique.
8 pages, 9 figures
Databáze: OpenAIRE