通过设置TMC428内部参数寄存器和片内ram的值，可使TMC428能够同时控制三个步进电机，实现三轴控制系统。

To set the proper parameter of register and on-chip ram of TMC428, it can make TMC428 control three stepper motor in the same time, and realize three-axis control system.

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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。

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.

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通过解耦，三轴转台系统成为三个单输入，单输出线性系统，为理论分析设计控制系统提供了转台模型。

The model is transformed into three single input and single output linear systems, and then it can be analyzed and designed by the linear system theory.

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