High-Precision Calibration for MEMS Gyroscopes Based on Persistent Excitation Signal Criterion

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• 作者：Zhigang Shang ; Xiaochuan Ma ; Mo Li ; Yu Liu
• 关键词：Calibration ; MEMS gyros ; PE Criterion ; Constant angular acceleration ; Cross ; correlation
• 刊名：Mapan
• 出版年：2015
• 出版时间：September 2015
• 年：2015
• 卷：30
• 期：3
• 页码：161-168
• 全文大小：1,162 KB
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• 作者单位：Zhigang Shang (1)
  Xiaochuan Ma (1)
  Mo Li (2)
  Yu Liu (1)
  
  1. Key Laboratory of Information Technology for Autonomous Underwater Vehicles, Chinese Academy of Sciences, Beijing, 100190, China
  2. China Academy of Aerospace Systems Science and Engineering, No. 14, Fucheng Road, Beijing, 100048, China
  
• 刊物类别：Physics and Astronomy
• 刊物主题：Physics
  Mathematical and Computational Physics
  Mathematical Methods in Physics
  Measurement Science and Instrumentation
  Numerical and Computational Methods
  
• 出版者：Springer India
• ISSN：0974-9853

文摘

The micro inertial gyroscopes based on the electro-mechanical system (MEMS gyros) are widely used in many applications. The calibration parameters include zero drifts, scale factors and installation errors, which are determined by calibration. Measurements often show large errors because of being not precisely calibrated and effectively compensated. This paper selects the constant angular acceleration signal as the excitation signal based on Persistent Excitation Signal Criterion (PE Criterion) in the modern control theory. The calibration scheme and data acquisition program are proposed. Calibration parameters are obtained using superposition, cross-correlation data processing methods. The effectiveness and reliability of the proposed calibration procedures are proven by simulations. Experimental results show that the proposed method is an efficient and simple high-precision calibration method. Keywords Calibration MEMS gyros PE Criterion Constant angular acceleration Cross-correlation