基于状态观测器的参数调制混沌数字通信

用状态观测器构造两个与混沌系统同步的子系统，将数字信号调制发送系统的参数，两同步系统交替与发送端同步. 在接收端，利用同步误差解调出信号. 以Henon混沌为例构造基于状态观测器的参数调制与解调系统，进行数值模拟，验证了该方法的有效性. 关键词： 状态观测器 混沌同步 参数调制

A parameter-modulated method for chaotic digital communication based on state observers

By designing an appropriate state observer, we have constructed two subsystems which alternately synchronize the chaotic drive system. When the parameter of the transmitter is modulated using the binary digital signal, the two systems can alternately be synchronized with the chaotic system. In the receiver, information is demodulated by analyzing synchronization error. An observer-based parameter modulation and demodulation Henon system was chosen to be a typical example. Numerical simulation is carried out to illustrate the effectiveness and efficiency of the proposed method.