Abstract: The paper presents a chaotic system.Some basic dynamical behaviors of the system are further explored by calculating its Lyapunov exponent spectrum and bifurcation diagrams.It is transformed from chaos to quasi-period and period.A digital circuit is designed to the chaotic system by DSP Builder in Simulink of Matalab，the circuit is translated into the VHDL code and downloaded into target hardware.It shows a good agreement between system simulations and experimental results.Furthermore，a method for digital implementation of a continuous chaotic system is proposed by using Field-Programmable Gate Array（FPGA） technology and Electronic Design Automation（EDA） tool.

摘要： 提出了一个混沌系统，并利用理论和数值仿真的方法对系统的基本特性进行了分析。通过Lyapunov指数谱和分岔图，对系统在混沌、拟周期和周期轨之间的转换进行了分岔分析。为验证系统的混沌行为，在Matalab的Simulink下，利用DSP Builder设计了一个电路，并把它转换成VHDL语言程序，利用Quartus II下载到硬件电路中进行了实验，实验结果与计算机仿真结果完全一致。提出了一种基于FPGA平台和EDA开发工具的实现混沌吸引子的新方法。