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Front. Inform. Technol. Electron. Eng.  2011, Vol. 12 Issue (11): 942-950    DOI: 10.1631/jzus.C1000441
    
Optimization of the resonant frequency servo loop technique in the resonator micro optic gyro
Yang Ren, Zhong-he Jin*, Yan Chen, Hui-lian Ma
Department of Information Science & Electronic Engineering, Zhejiang University, Hangzhou 310027, China
Optimization of the resonant frequency servo loop technique in the resonator micro optic gyro
Yang Ren, Zhong-he Jin*, Yan Chen, Hui-lian Ma
Department of Information Science & Electronic Engineering, Zhejiang University, Hangzhou 310027, China
 全文: PDF(634 KB)  
摘要： Proportional integrator (PI) is always adopted in the resonant frequency servo loop in a resonator micro optic gyro (RMOG). The oscillation phenomenon is observed when adjusting the loop gain surpassing a threshold. This phenomenon limits system performance on step response speed and residual error. Based on the experiment system, a simulation model was set up. Further analysis shows that the threshold gain is related to the system loop filter setting and the loop delay. The traditional PI frequency servo loop technique in the RMOG system cannot keep up with the environment’s disturbance quickly enough, which leads to a large residual error. A compensating method is proposed to optimize the tracking performance, solve the oscillation problem, and speed up the system response. Simulation and experiment results show that the compensated system is superior in performance. It has less residual error in the stable state and is 10 times quicker than the uncompensated system on the step response.
关键词： Resonator micro optic gyro (RMOG);  Resonance frequency servo loop;  10.1631/jzus.C10e0441')" href="#">Phase compensating method

An erratum to this article can be found at doi:10.1631/jzus.C10e0441    
Abstract: Proportional integrator (PI) is always adopted in the resonant frequency servo loop in a resonator micro optic gyro (RMOG). The oscillation phenomenon is observed when adjusting the loop gain surpassing a threshold. This phenomenon limits system performance on step response speed and residual error. Based on the experiment system, a simulation model was set up. Further analysis shows that the threshold gain is related to the system loop filter setting and the loop delay. The traditional PI frequency servo loop technique in the RMOG system cannot keep up with the environment’s disturbance quickly enough, which leads to a large residual error. A compensating method is proposed to optimize the tracking performance, solve the oscillation problem, and speed up the system response. Simulation and experiment results show that the compensated system is superior in performance. It has less residual error in the stable state and is 10 times quicker than the uncompensated system on the step response.
Key words: Resonator micro optic gyro (RMOG)    Resonance frequency servo loop    10.1631/jzus.C10e0441')" href="#">Phase compensating method

An erratum to this article can be found at doi:10.1631/jzus.C10e0441
收稿日期: 2010-12-26 出版日期: 2011-11-04
CLC:  TN24  
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Yang Ren
Zhong-he Jin
Yan Chen
Hui-lian Ma

引用本文:

Yang Ren, Zhong-he Jin, Yan Chen, Hui-lian Ma. Optimization of the resonant frequency servo loop technique in the resonator micro optic gyro. Front. Inform. Technol. Electron. Eng., 2011, 12(11): 942-950.

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http://www.zjujournals.com/xueshu/fitee/CN/10.1631/jzus.C1000441    或    http://www.zjujournals.com/xueshu/fitee/CN/Y2011/V12/I11/942

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