Volume 35 Issue 3
Mar.  2009
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Lu Jiazhen, Zhang Chunxi, Zhu Lufenget al. Technique of continuous auto-calibration of redundant strapdown inertial system[J]. Journal of Beijing University of Aeronautics and Astronautics, 2009, 35(3): 366-370. (in Chinese)
Citation: Lu Jiazhen, Zhang Chunxi, Zhu Lufenget al. Technique of continuous auto-calibration of redundant strapdown inertial system[J]. Journal of Beijing University of Aeronautics and Astronautics, 2009, 35(3): 366-370. (in Chinese)

Technique of continuous auto-calibration of redundant strapdown inertial system

  • Received Date: 26 Mar 2008
  • Publish Date: 31 Mar 2009
  • A novel continuous auto-calibration technique was presented for redundant strapdown inertial navigation systems. Principles of the proposed technique were based on strapdown system error models, which indicated that velocity errors from the system could contain information related to inertial sensor errors when rotated along a predefined trajectory. A novel calibration trajectory was designed. All deterministic errors could be accurately estimated through Kalman filtering techniques. Simulation platform for redundant strapdown system was designed to validate efficiency of this technique. Results show that the novel calibration technique outperforms conventional multi-position technique considering its simplicity and precision, which is of great importance for practical applications.

     

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