Journal of Shandong University(Engineering Science) ›› 2019, Vol. 49 ›› Issue (3): 1-7.doi: 10.6040/j.issn.1672-3961.0.2017.601

• Machine Learning & Data Mining •     Next Articles

Four-wing hyperchaotic system synchronization and its secure video communication based on FPGA

Wei XUE(),Dongcheng TAN,Mei ZHANG,Shilong LIU   

  1. College of Electronic Information and Automation, Tianjin University of Science and Technology, Tianjin 300222, China
  • Received:2018-12-04 Online:2019-06-20 Published:2019-06-27
  • Supported by:
    国家自然科学基金青年科学基金资助项目(11202148)

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Abstract:

A four-wing generalized augmented Lü hyperchaotic system was analyzed, and the self-synchronization of the hyperchaotic system was realized by the method of nonlinear synchronous control. The correctness and validity of the nonlinear synchronous controller were theoretically analyzed. The design and implementation of FPGA hardware circuit for the nonlinear synchronous control hyperchaotic system were carried out. The results of hardware test were consistent with those of numerical simulation and theoretical analysis. A chaotic masking secure video communication scheme of the hyperchaotic system based on nonlinear synchronization was proposed, and the FPGA hardware experiment of the secure communication scheme was carried out. The FPGA hardware test results showed that the secure communication scheme was effective and feasible, and had a good security.

Key words: hyper-chaos, secure communication, synchronization, FPGA, implementation

CLC Number: 

  • TP29

Fig.1

Phase diagrams of system (1)"

Fig.2

Lyapunov exponent spectrum of system (1) versus b"

Fig.3

Synchronous curves when yi=xi(i=1, 2, 3, 4)"

Fig.4

RTL schematic diagram of FPGA implementation of the synchronization system"

Fig.5

Resource consumption of FPGA implementation of the synchronization system"

Fig.6

FPGA implementation results of chaotic attractor in generalized augmented Lü hyperchaotic system circuit"

Fig.7

Synchronous curves of FPGA implementation synchronization system"

Fig.8

Chaotic concealment video communication schematic of nonlinear control synchronization based on system (1)"

Fig.9

System principle block diagram"

Fig.10

FPGA circuit experiment results of chaotic concealment video communication"

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