Design and implementation of a switch Chen chaotic system

Complex signal of chaos is generated to use in secure communication. A new chaotic system is constructed by anticontrol of chaos based on Chen system, which is different from Chen system in the third nonlinear term. The system constructed in this paper combines with Chen system to form a switchable chaotic system. The switchable chaotic system can change its behavior automatism from one to another via a data selector. The system is implemented based on FPGA by EDA technology, It is discreted in DSP Builder. Experiment shows a good agree with simulation.