The FPGA Implementation of Hyperchaotic System Based upon VHDL Design

An improved approach for the implementation of hyperchaotic system by Runge-Kutta Algorithm is proposed. The behaviors of the discrete hypechaotic system, which is converted from continuous hyperchaotic system by Runge-Kutta Algorithm, are verified by the Xilinx System Generator in the environment of Simulink of Matlab. The design of hyperchaotic system based on VHDL is proposed referring to the simulink work rather than generating from System Generator. Finally, digital chaotic signals generated by FPGA are converted to analog signals which can be captured by oscilloscope. The results of experiment are in full agreement with the system simulation.