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Volume 29 Issue 3
 
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Article Navigation >  Journal of Unmanned Undersea Systems  > 2021  >  29(3): 363-367
RUAN Wei, HAO Zhe, SONG Xi-fa, ZHANG Qin-nan, WANG Li-wen, GUO Lin-na. Method of Field Calibration for Torpedo Accelerometer Zero Bias[J]. Journal of Unmanned Undersea Systems, 2021, 29(3): 363-367. doi: 10.11993/j.issn.2096-3920.2021.03.018
Citation: RUAN Wei, HAO Zhe, SONG Xi-fa, ZHANG Qin-nan, WANG Li-wen, GUO Lin-na. Method of Field Calibration for Torpedo Accelerometer Zero Bias[J]. Journal of Unmanned Undersea Systems, 2021, 29(3): 363-367. doi: 10.11993/j.issn.2096-3920.2021.03.018
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Method of Field Calibration for Torpedo Accelerometer Zero Bias

doi: 10.11993/j.issn.2096-3920.2021.03.018

  • The 705 Research Institute, China State Shipbuilding Corporation Limited, Xi’an 710077, China

  • Received Date: 2020-06-30
  • Rev Recd Date: 2020-09-27
  • Publish Date: 2021-06-30
    Abstract
  • To solve the problem in which a torpedo inertial measurement unit is required to disassemble for calibration regularly. In this study, a disassembly free calibration method for a torpedo inertial measurement unit is proposed. By using velocity errors as observations to establish the Kalman filtering model on a stationary base, first, the misalignment angle is estimated; second, vertical accelerometer zero bias is estimated, and the attitude matrix of three positions and upward accelerometer zero bias are used to solve the accelerometer bias of the inertial measurement unit. Simulation results show that this method is effective and feasible for torpedo-field disassembly free calibration.

     

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