For a given control system, it is possible that the system may not be stabilized by pure decentralized state feedback, and its feedback structure has to be changed.

给定一个系统，在完全分散的状态反馈下，系统可能不能被镇定，这就要求改变系统的反馈结构。

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A kind of cascade control system with state feedback for pure dead-time processes is presented in this paper.

针对纯滞后对象，提出一种串级双环状态反馈控制方式，使这种对象获得较理想的控制品质。

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The results show that the existence of cavity phase damping leads to the phenomenon that the quantum states of the field and the system deviate from the initial pure state.

结果表明，由于相位损耗的存在使得光场和系统的量子态偏离初始纯态。

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