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Dynamics analysis of a 5-dimensional hyperchaotic system with conservative flows under perturbation |
Xuenan Peng(彭雪楠), Yicheng Zeng(曾以成)†, and Qi Xie(谢奇) |
School of Physics and Optoelectronic Engineering, Xiangtan University, Xiangtan 411105, China |
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Abstract Conservative chaotic flows have better ergodicity, therefore researching dynamics and applications of conservative systems has become a hot topic. We introduce a constant-perturbation into a 5-dimensional (5D) conservative model. Consequently, the line equilibria of original model have been changed to non-equilibrium. Plentiful chaos phenomena such as coexisting conservative flows can be observed in this modified system. In addition, by increasing the magnitude of the disturbance, the conservative system can be transformed to a dissipative system. Then, the modified system is realized by an xc7z020clg400 field programmable gate array (FPGA) chip. The designed chaotic oscillator consumes fewer resources and has high iteration speed. Finally, a pseudo random number generator based on this novel digital oscillator is designed.
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Received: 19 January 2021
Revised: 19 February 2021
Accepted manuscript online: 03 March 2021
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PACS:
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05.45.Gg
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(Control of chaos, applications of chaos)
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05.45.Pq
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(Numerical simulations of chaotic systems)
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05.45.-a
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(Nonlinear dynamics and chaos)
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Fund: Project supported by the National Natural Science Foundation of China (Grant No. 62071411). |
Corresponding Authors:
Yicheng Zeng
E-mail: yichengz@xtu.edu.cn
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Cite this article:
Xuenan Peng(彭雪楠), Yicheng Zeng(曾以成), and Qi Xie(谢奇) Dynamics analysis of a 5-dimensional hyperchaotic system with conservative flows under perturbation 2021 Chin. Phys. B 30 100502
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