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A novel chaotic system with suppressed time-delay signature based on multiple electro-optic nonlinear loops

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Abstract

We present a novel time-delay chaotic system by adopting multiple electro-optic nonlinear loops. The dynamic characteristics of the proposed chaotic system are investigated by means of the bifurcation diagram and the permutation entropy. The security performance of the system is analyzed in detail by using autocorrelation function, delayed mutual information, and the permutation information approach. The simulation results show that the time-delay signature is suppressed under certain simple conditions. Moreover, a synchronization scheme on basis of the proposed system is analyzed. Both the security and the feasibility are verified. The proposed chaotic system can be used in secure communications and also has potential applications in random number generation or chaos computing.

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Acknowledgments

This work is supported by the National “863” Program of China (no. 2015AA016904) and the National Nature Science Foundation of China (NSFC) under grant no. 61307091 and 61331010.

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Authors and Affiliations

  1. School of Automation, Huazhong University of Science and Technology, Wuhan, 430074, China

    X. Gao & H. Hu

  2. Next generation Internet Access National Engineering lab, School of Optoelectronic Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China

    M. Cheng, L. Deng & D. Liu

  3. School of Software, Nanchang University, Nanchang, 330099, China

    L. Liu

Authors
  1. X. Gao
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  2. M. Cheng
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  3. L. Deng
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  4. L. Liu
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  5. H. Hu
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  6. D. Liu
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Correspondence to M. Cheng.

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Gao, X., Cheng, M., Deng, L. et al. A novel chaotic system with suppressed time-delay signature based on multiple electro-optic nonlinear loops. Nonlinear Dyn 82, 611–617 (2015). https://doi.org/10.1007/s11071-015-2181-3

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  • DOI: https://doi.org/10.1007/s11071-015-2181-3

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