关键词: 混沌系统；Lorenz系统；Lyapunov指数谱

Abstract:

A novel method was adopted to design a hyperchaotic system Generator, based on a hyperchaotic system and implemented in FPGA. This method was based on the Matlab／Simulink, Altera Quartus II and DSP Builder. The hyperchaotic system was built by Altera DSP Builder, which is embedded into the Matlab／Simulink as a toolbox. After successful simulation of this model, the VHDL code was generated automatically. Then this code could be complied, simulated, configured and download by the Altera Quartus II. The research results indicated that this new method is not only simple and convenient but also effective to precisely produce a hyperchaotic system. It showed good agreement between system simulations and experimental results.

Key words: hyperchaotic system； Lorenz system； Lyapunov exponents spectrum