Image cryptography communication using FPAA-based multi-scroll chaotic system

Karawanich, Khunanon; Chimnoy, Jirat; Khateb, Fabian; Marwan, Muhammad; Prommee, Pipat

doi:10.1007/s11071-024-09275-7

Cited by 4 publications

(1 citation statement)

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“…This method originates in analog computers (AC), ancient universal analog machines capable to solve simple ordinary differential equations. Obvious drawback of chaotic oscillators constructed as AC is the necessity to use many active elements, which can be reduced by utilizing a field programmable analog array (FPAA) [37]. Although the graphical user interface of commercially available FPAA platforms greatly simplifies the design process, the size of the working area dedicated to inserting electronic components is limited.…”

Section: Circuit Models and Measurementmentioning

confidence: 99%

Sinusoidal oscillator parametrically forced to robust hyperchaotic states: the lumpkin case

Petrzela,

Polak

2024

Nonlinear Dyn

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The objective of this paper is to showcase the capability of the conventional circuit structure known as the Lumpkin oscillator, widely employed in practical applications, to operate in robust chaotic or hyperchaotic steady states. Through numerical analysis, we demonstrate that the generated signals exhibit a significant level of unpredictability and randomness, as evidenced by positive Lyapunov exponents, approximate entropy, recurrence plots, and other indicators of complex dynamics. We establish the structural stability of strange attractors through design and practical construction of a flow-equivalent fourth-order chaotic oscillator, followed by experimental measurements. The oscilloscope screenshots captured align well with the plane projections of the approximate solutions derived from the underlying mathematical models.

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Section: Circuit Models and Measurementmentioning

confidence: 99%