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基于FPGA技术的混沌系统设计与实现

, PP. 8-14

Keywords: 混沌系统,FPGA,VerilogHDL,DSP-Builder

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Abstract:

以经典的Lorenz系统为研究对象,利用FPGA数字信号处理技术实现Lorenz混沌系统,减少了外界因素的干扰.首先,对Lorenz连续系统的方程进行分解,得到离散化状态方程,接着基于DSP-Builder软件开发平台获得系统的电路模型,该模型可直接转化为VHDL语言;其次,采用硬件描述语言(VerilogHDL)直接编程的形式,对系统进行验证,并从示波器中观测到Lorenz系统的混沌波形.通过比较上述2种实现混沌系统的方法,总结其优缺点及适用范围,为进一步利用FPGA实现一类非线性系统及相关领域的研究提供实用的方法.

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