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Journal of Projectiles, Rockets, Missiles and Guidance >

2010 , Vol. 30 >Issue 1: 37 - 39,46

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2010.01.006

MISSILES AND GUIDANCE TECHNOLOGY

A Reduced Calibration Method for Inertial Measurement Units at Different Temperatures

  • ZHANG Hongliang ,
  • WU Yuanxin ,
  • WU Wenqi ,
  • ZHA Yabing
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  • College of Mechatronic and Automation, National University of Defense Technology,Changsha 410073,China

Received date: 2009-04-21

  Online published: 2025-05-28

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Abstract

In order to make calibration of inertial measurement units (IMU) at different environmental temperatures more easily, this paper proposes a reduced calibration method based on the fact that the norm of outputs is equal to the magnitude of inputs for an IMU. We also derived the best calibration scheme for IMUs whose gyroscope triad and accelerometer triad are both almost or-thogonal. Calibration tests at different environmental temperatures for a laser gyroscope strapdown inertial navigation system were performed. Compared with the calibration results using a high precision turntable, parameters got from the reduced calibration method are precise enough to be used in a navigation grade inertial navigation system. The tests show that the proposed method is effective.

Key words： inertial measurement unit; calibration; different environmental temperatures

Cite this article

ZHANG Hongliang , WU Yuanxin , WU Wenqi , ZHA Yabing . A Reduced Calibration Method for Inertial Measurement Units at Different Temperatures[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2010 , 30(1) : 37 -39,46 . DOI: 10.15892/j.cnki.djzdxb.2010.01.006

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