The researches of this paper are very important and significative job to improve precision of servo-control system of three axis optical tracking test table even all type of electric simulator tables.
本论文的研究对于提高三轴光学跟踪试验转台以至于所有电动仿真转台的伺服控制系统的精度来说，是一项十分重要和有意义的工作。
As well known, the fabricators of electric servo-motor already provide their own servo controller; however, in almost all the case they employ conventional PID in their units.
由于众所周知，加工厂的电动伺服电机已经提供自己的伺服控制器，但是，几乎在所有情况下，他们在他们的单位常规pid。
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