Memristor hyperchaos in a generalized Kolmogorov-type system with extreme multistability

Autor: Xiaodong Jiao, Mingfeng Yuan, Jin Tao, Hao Sun, Qinglin Sun, Zengqiang Chen
Rok vydání: 2023
Předmět:
Zdroj: Chinese Physics B. 32:010507
ISSN: 1674-1056
DOI: 10.1088/1674-1056/ac5e95
Popis: Memristor chaotic systems have aroused great attention in recent years with their potentials expected in engineering applications. In this paper, a five-dimension (5D) double-memristor hyperchaotic system (DMHS) is modeled by introducing two active magnetron memristor models into the Kolmogorov-type formula. The boundness condition of the proposed hyperchaotic system is proved. Coexisting bifurcation diagram and numerical verification explain the bistability. The rich dynamics of the system are demonstrated by the dynamic evolution map and the basin. The simulation results reveal the existence of transient hyperchaos and hidden extreme multistability in the presented DMHS. The NIST tests show that the generated signal sequence is highly random, which is feasible for encryption purposes. Furthermore, the system is implemented based on a FPGA experimental platform, which benefits the further applications of the proposed hyperchaos.
Databáze: OpenAIRE