Strange Nonchaotic Attractors In A Periodically Forced Piecewise Linear System With Noise

L. I. Gaolei, Y. U.E. Yuan*, Celso Grebogi, L. I. Denghui, X. I.E. Jianhua

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)
3 Downloads (Pure)


The study of strange nonchaotic attractors (SNAs) has been mainly restricted to quasiperiodically forced systems. At present, SNAs have also been uncovered in several periodically forced smooth systems with noise. In this work, we consider a periodically forced nonsmooth system and find that SNAs are created by a small amount of noise. SNAs can be generated in different periodic windows with weak noise perturbation. If the parameter is varied further from the chaotic range, a larger noise intensity is required to induce SNAs. Besides, noise-induced SNAs can be generated by the periodic attractors near the boundary crisis. In addition, with the increasing noise intensity, the intermittency between SNAs and periodic attractors can be induced by transient chaos. The characteristics of SNAs are analyzed by the Lyapunov exponent, power spectrum, singular continuous spectrum, spectral distribution functions, and finite time Lyapunov exponent.

Original languageEnglish
Article number2250003
Number of pages11
Issue number1
Early online date13 Dec 2021
Publication statusPublished - 2022

Bibliographical note

This work is supported by the National Natural Science Foundation of China (NNSFC) (Nos. 12072291, 11732014 and 12172306)


  • Crisis
  • Intermittency
  • Noise
  • Piecewise Linear System
  • Strange Nonchaotic Attractor


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