The motor servo drive system was used to control antenna turning, adjust the antenna to point at satellite again and receive signal.

再用电机伺服驱动系统控制天线转动，调整其重新指向卫星接收信号。

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To meet the demand of servo drive system, the vector control technique is chosen as the control strategy of permanent magnet synchronous servo system.

结合伺服传动控制系统的要求，确定永磁同步电机伺服系统的控制方案为矢量控制。

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The simulation results show that the tracking error of middle-convex and varying ellipse piston linear servo drive system can be reduced effectively by this method.

仿真结果表明，采用这种控制策略可以十分有效地减小中凸变椭圆活塞直线伺服驱动系统的跟踪误差。

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