Hyperchaotic Synchronization Secure Communication Based on State Observer

To improve the security of data transmission in network, a secure communication method based on hyperchaotic synchronization is presented. Two hyperchaos are constructed by using state observer and kept synchronization; so the received signal is encrypted. A secure communication system is constructed with the example of Rossler hyperchaotic system. The simulation results show that the design is simple, the calculation accuracy is high and the robustness is strong.