【摘要】 为实现不同种混沌系统之间的同步问题,提出一种基于高增益观测器的滑模控制混沌同步方法.该方法以混沌同步误差系统的标准型为模型,将两个混沌系统之间的结构差异扩张成系统的状态,尽可能少地利用可测的系统信息来构造高增益观测器估计系统的所有状态,设计出物理上可实现的滑模控制策略,有效地解决了不同种系统之间的混沌同步问题.理论分析和仿真结果都验证了该方法的可行性和有效性.该方法在基于混沌同步的保密通信中有很好的应用前景.更多还原

【Abstract】 In order to realize the chaotic synchronization among different chaotic systems,a sliding mode control approach based on high gain state observer was presented.Using the normal form of the error system for the chaotic synchronization as the model,expanded the difference of the systematic structure to a new state,and designed a high gain state observer using the information observed as little as possible.Then a sliding mode control strategy was proposed,which can be realized in physics.The strategy completed the chaotic synchronization among different chaotic systems successfully.Theory analysis and simulation results prove the feasibility and validity of the approach.It will be applicable in the field of chaotic secure communication.更多还原