Volume 34 Issue 04
Apr.  2008
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Sun Hongwei, Fang Jiancheng, Sheng Weiet al. Calibration-compensation method for micro inertial measurement unit based on MEMS[J]. Journal of Beijing University of Aeronautics and Astronautics, 2008, 34(04): 439-442. (in Chinese)
Citation: Sun Hongwei, Fang Jiancheng, Sheng Weiet al. Calibration-compensation method for micro inertial measurement unit based on MEMS[J]. Journal of Beijing University of Aeronautics and Astronautics, 2008, 34(04): 439-442. (in Chinese)

Calibration-compensation method for micro inertial measurement unit based on MEMS

  • Received Date: 06 Apr 2007
  • Publish Date: 30 Apr 2008
  • According to angular velocity and accelerate error mathematical models of micro inertial measure unit (MIMU), a kind of quick calibration-compensation method called dynamic overturn 6 positions was proposed based on special features of micro electronic mechanical system (MEMS) inertial devices, which only needed one single axis velocity rolling plate (without referring to the north). Comparing with traditional calibration-compensation method, this method was simple, convenient and could identify forty-five error coefficients of MIMU. The precision of error coefficients identified was high, and this method was especially fit for low precision strapdown inertial measure unit. Through theoretical analyses, calculations and experiments, the result shows that this calibration-compensation method could improve the MIMU accuracy by 2~3 magnitudes.

     

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