基于DSP的Liu混沌系统的实现

Realization of Liu chaotic system based on digital signal processor

介绍了一种用DSP实现Liu混沌系统的方案.采用TMS320F2812和DA转换芯片TLC7528C作为工具,将Liu系统离散化后用DSP进行迭代计算,再进行DA转换,输出到示波器上得到相图,并与Matlab仿真结果比较,证明了该方法的正确性.使用该方法不仅观察到了数字电路中的混沌现象,应用到实际中还可与其他数字器件完好地对接,拓宽了混沌理论的应用领域.

A way to realize Liu chaotic system based on DSP（ digital signal processor） is introduced in this paper. We use TMS320F2812 and the digital-to-analog converting chip TLC7528C as our instrument. At first we have Liu system scattered to iteratively calculate it on DSP. The results are digital-to-analog converted and output to the oscil- lograph to get phase diagrams, which are compared with the results of Matlab simulation to testify the correctness of this method. Using this method, we can not only observe the phenomenon of chaos in digital circuits and apply it in real projects, but also have it work very well with other digital device, so as to make the theory of chaos more widely used in the future digital world.