A design method of an optimal observer is also introduced in this paper for the case when the states of the system can not be measured directly.
文中还介绍了当系统的状态不能直接量测时，最优状态观测器的设计问题。
The essential structure of this system is presented, an efficient arithmetic of automatic positioning control is introduced, and several relevant data in a practical case also are given.
文中介绍了该系统的基本结构，阐述了自动定位控制的一种有效算法，给出了在一个实际应用中所达到的控制效果的有关数据。
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