Application of adaptive angle rate estimator to gimbal of MGCMG

To eliminate the noise produced by the different calculations of position signal, an adaptive algorithm for angle rate estimation with low noise and changeable bandwidth was proposed. The stability of estimator was analyzed, then the adaptive algorithm of adjusting proportion gain of forward channel in real time was designed using the least square method. The software of Matlab was used for simulating the experimental data to reduce the fluctuation of stable speed by 88%. Then, the experiments were carried out on Magnetic Suspended Control Moment Gyroscope(MSCMG). While the estimator was added to feedback route of velocity loop, the fluctuation of speed curve was reduced by 71.5% without the influence on bandwidth. The results show that the algorithm can give accurate angle rate estimation with low noise and changeable bandwidth.