acquire speed造句

• So extend kalman filter ( ekf ) is applied to low speed control of ac servo systems in order to identify the information of position of magnet poles and low speed instead of incremental encoder . in high speed region , encoder is still used to acquire speed information
  基于此，本文把扩展的卡尔曼滤波( ekf )技术应用于交流伺服系统的低速控制，完成系统初始磁极位置角的辨识以及低速下电机转速的估计，在高速时，仍采用光电编码器获取电机转速。