不确定参数Liu系统的自适应同步在保密通信中的应用

摘要

基于稳定性理论,用自适应控制的方法构造了一个同步系统,实现对任意传输信号的及时准确恢复;用此方法对Liu系统进行了数值仿真,结果表明系统能很好地达到同步。将该系统应用到保密通讯中,信息信号和混沌信号相加构成混沌传输信号,在接收端信息信号能被有效复原,仿真研究表明该通信方案确实可行。%A synchronizing system is created using the self-adaptive control approach which is based on the stability theory,and it can be used to restore any transmitted signal timely and accurately.Simulation of the Liu system is conducted and the simulation results show that with the help of the self-adaptive control approach,the chaotic system can be synchronized effectively.The method is applied to secure communication.The information signal is added to the chaotic signal to produce the chaotic transmitted signal.The information signal is restored at the receiver effectively.The simulation results indicate that the communication scheme is truly feasible.