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Design of Chen-like system and its FPGA implementation


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Design of Chen-like system and its FPGA implementation
Yuan ZeshiLi HongtaoZhu Xiaohua
School of Electronic Engineering and Optoelectronic Technology,NUST,Nanjing 210094,China
Chen-like chaotic system topological structure dynamic behaviors chaotic attractor three-dimensional autonomous chaotic system partial amplitude modulation parameter bifurcation diagrams Lyapunov exponent spectrums register transfer level fixed-p
To achieve a Chen-like chaotic attractor with more complex topological structure and dynamic behaviors,a new three-dimensional autonomous chaotic system is constructed by introducing a variable coefficient product term and a variable coefficient quadratic term in the Chen system.Numerical simulation shows that this system has peculiar dynamic behaviors demonstrated by Bifurcation diagrams and Lyapunov exponent spectrums,and has a partial amplitude modulation parameter.The circuit of the system is realized efficiently on the register transfer level(RTL)of the field programmable gate array(FPGA),and the chaotic system proposed here is realized using 32-bit fixed-point operation.The numerical simulation result is in accord with the hardware emulation result,and the robustness and physical realizability of this system is verified.


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Last Update: 2015-06-30