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Updated: Sep 1, 2025

Method to Measure Tone of Axial and Proximal Muscle
Published on: December 14, 2011
System identification and mechanical resonance frequency suppression for servo control used in single gimbal control
Yue Yu1,2,3, Lu Dai1, Maosheng Chen1
1Chang Guang Satellite Technology Co., LTD, Changchun, China.
Abstract:
Effective identification of the control model is one of the key aspects in improving the performance of the single gimbal control moment gyroscope (SGCMG) servo system. The accuracy and stability of the servo system can be improved by studying system identification and mechanical resonance frequency. In this study, firstly, the SGCMG gimbal servo system was simplified to a two-mass block model. The theoretical mathematical model of the system's transfer function and mechanical resonance frequency was derived. Secondly, this paper studied the effective suppression method for mechanical resonance. Thirdly, the mathematical model of the orthogonal correlation analysis method was deduced for system identification. Then, an experimental platform was investigated to obtain the frequency characteristic curve and the transfer function. Finally, the frequency characteristic curve obtained using the transfer function model was plotted and compared with the frequency characteristic curve obtained experimentally. Our results indicate that the orthogonal correlation analysis has a high identification accuracy.
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