步进电机的MATLAB仿真程序，采用了卡尔曼滤波，对定子电流进行估计，并估算出转子的位置和速度-Continuous time extended Kalman filter simulation for two-phase step motor，Estimate the stator currents, and the rotor position and velocity, on the basis of noisy measurements of the stator currents.

在Matlab/Simulink中搭建的步进电机、单相异步电机、直流无刷电机三种驱动系统的仿真模型，来对比仿真其速度响应动态性能-In Matlab/Simulink to build the step into the motor, single-phase asynchronous motor, DC brushless motor drive system simulation model, and compared the simulation speed of dynamic resp