同时分析了同步系统的稳定性，给出了设计非线性状态观测器的方法。
At the same time, the stability of the synchronized system is analyzed, with the method for designing nonlinear state observer being proposed.
通过设计非线性状态观测器，构造了两个混沌系统并使其保持同步，从而实现加密信号的完全再现。
By designing nonlinear state observer, two chaotic systems are constructed and kept synchronized, hence, encrypted signals can be completely recurred.
通过设计非线性状态观测器，构造了两个混沌系统并使其保持同步，从而实现加密信号的完全再现。
The structure of Liu chaotic system was analyzed, and then linear feedback synchronization method and state observers synchronization method were designed.
自抗绕控制器由三部分组成：跟踪微分器、扩张状态观测器和非线性状态误差反馈控制律。
The auto-disturbance rejection controller is composed of three parts: tracking-differentiator, extended state observer and nonlinear state error feedback control law.
并在系统的扩张状态观测器和非线性状态误差控制器中引入非线性幂指数函数，使系统运算变得更加简单。
A nonlinear exponential function is applied to ESO and nonlinear state error feedback (NLSEF) controller, and it makes the system realize easier operation.
并在系统的扩张状态观测器和非线性状态误差控制器中引入非线性幂指数函数，使系统运算变得更加简单。
A nonlinear exponential function is applied to ESO and nonlinear state error feedback (NLSEF) controller, and it makes the system realize easier operation.
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