Design of a fractional-order chaotic secure communication circuit based on sliding mode theory and microcontroller
ISSN: 0305-6120
Article publication date: 21 April 2022
Issue publication date: 8 November 2023
Abstract
Purpose
With the development of integrated circuit and communication technology, digital secure communication has become a research hotspot. This paper aims to design a five-dimensional fractional-order chaotic secure communication circuit with sliding mode synchronous based on microcontroller (MCU).
Design/methodology/approach
First, a five-dimensional fractional-order chaotic system for encryption is constructed. The approximate numerical solution of fractional-order chaotic system is calculated by Adomian decomposition method, and the phase diagram is obtained. Then, combined with the complexity and 0–1 test algorithm, the parameters of fractional-order chaotic system for encryption are selected. In addition, a sliding mode controller based on the new reaching law is constructed, and its stability is proved. The chaotic system can be synchronized in a short time by using sliding mode control synchronization.
Findings
The electronic circuit is implemented to verify the feasibility and effectiveness of the designed scheme.
Originality/value
It is feasible to realize fractional-order chaotic secure communication using MCU, and further reducing the synchronization error is the focus of future work.
Keywords
Acknowledgements
This work was supported by the key scientific research project of Hunan Provincial Department of Education (21A0317, 19A183), the Natural Science Foundation of Hunan Province in China (2021JJ30271), Hunan Provincial Degree and Graduate Education Reform Project No. 2020JGYB189 and Postgraduate Scientific Research Innovation Project of Hunan Province No. QL20210240.
Citation
Zhou, Z., Yu, W., Wang, J., Zhao, Y. and Liu, M. (2023), "Design of a fractional-order chaotic secure communication circuit based on sliding mode theory and microcontroller", Circuit World, Vol. 49 No. 4, pp. 480-492. https://doi.org/10.1108/CW-03-2021-0078
Publisher
:Emerald Publishing Limited
Copyright © 2022, Emerald Publishing Limited