According to performance index, a states feedback controller was also designed to improve the performance of the control system.

根据性能指标要求设计了状态反馈控制器，从而提高控制系统的品质。

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The results show that the feedback and couple the two orthogonal states of polarization are important for formation and control of optical pulses in EDFL.

结果表明，掺铒光纤激光器中两正交偏振态的反馈及其耦合对光脉冲的形成及控制的重要性。

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Furthermore, dynamic output feedback variable structure control using outputs of the system and states of the observer is studied.

利用状态观测器的状态及系统输出变量反馈方法，设计了大型空间结构的动态输出变结构控制律。

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