For uncertain systems with parameter uncertainty and unknown disturbance, a two-degree-of-freedom control structure was proposed based on sensitivity function.
针对具有参数不确定性和外部未知扰动的不确定系统，基于灵敏度函数，提出了一种二自由度控制结构。
The two-degree-of-freedom PID control system with variable structure has been introduced in this paper.
阐述了系统结构可变的二自由度通用控制系统；
The two-degree-of-freedom PID control system with variable structure has been introduced in this paper.
阐述了系统结构可变的二自由度通用控制系统；
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