4.7 Article

On Chaos and Complexity Analysis for a New Sine-Based Memristor Map with Commensurate and Incommensurate Fractional Orders

期刊

MATHEMATICS
卷 11, 期 20, 页码 -

出版社

MDPI
DOI: 10.3390/math11204308

关键词

chaos; sine memristor map; discrete fractional calculus; complexity

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In this study, a 2D sine map is expanded to a 3D fractional-order sine-based memristor map by adding a discrete memristor. Through various numerical techniques, the nonlinear dynamic behaviors of the map under commensurate and incommensurate orders are extensively explored, and its sensitivity to fractional-order parameters is emphasized, leading to the emergence of distinct and diverse dynamic patterns. The complexity of the map is quantitatively measured using the sample entropy method and C0 complexity, and the presence of chaos is validated using the 0-1 test. MATLAB simulations are executed to confirm the obtained results.
In this study, we expand a 2D sine map via adding the discrete memristor to introduce a new 3D fractional-order sine-based memristor map. Under commensurate and incommensurate orders, we conduct an extensive exploration and analysis of its nonlinear dynamic behaviors, employing diverse numerical techniques, such as analyzing Lyapunov exponents, visualizing phase portraits, and plotting bifurcation diagrams. The results emphasize the sine-based memristor map's sensitivity to fractional-order parameters, resulting in the emergence of distinct and diverse dynamic patterns. In addition, we employ the sample entropy (SampEn) method and C0 complexity to quantitatively measure complexity, and we also utilize the 0-1 test to validate the presence of chaos in the proposed fractional-order sine-based memristor map. Finally, MATLAB simulations are be executed to confirm the results provided.

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