Secure communication based on chaotic synchronization

To solve the security of data transmission in network,a secure communication method based on chaotic synchronization is presented.By designing nonlinear state observer,two chaotic systems are constructed and kept synchronized,hence,encrypted signals can be completely recurred.At the same time,the stability of the synchronized system is analyzed,with the method for designing nonlinear state observer being proposed.A secure communication system is constructed with the example of a well-known Rossler chaotic system,of which analysis and simulation results are given.Simulation results show that the proposed scheme has the characteristics of simple design,fast synchronized speed and high security.