A Rapid Field Calibrating Method for MIMU

Abstract:

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When the Micro Inertial Measurement Unit is been placed randomly in the case of stationary, the sum vectors that measured by the inertial devices configured orthogonally along three axis, are constant vectors. In view of the above objective facts, a field calibration method of micro inertial measurement unit was proposed. On the base of the establishment and optimization of calibration model, all parameters to be calibrated can be obtained through the least square by the ellipsoid fitting, with the result of high-precision field calibration for micro inertial measurement unit. Finally, a filed calibration program for micro inertial measurement unit is scheduled reasonably. The experiment results show that the method has such characteristics such as easily-operation, time-saving, higher calibration accuracy, and not depending on the baseline direction and datum offered by precision instruments. Especially, it fits for inertial measurement systems which work short time and ask for high accuracy. In addition, it can also significantly increase the measurement accuracy of micro inertial measurement system in practical application.

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Periodical:

Edited by:

Linli Xu, Wenya Tian and Elwin Mao

Pages:

1140-1144

DOI:

10.4028/www.scientific.net/AMM.80-81.1140

Citation:

Y. B. Fan et al., "A Rapid Field Calibrating Method for MIMU", Applied Mechanics and Materials, Vols. 80-81, pp. 1140-1144, 2011

Online since:

July 2011

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Price:

$38.00

[1] J. Li,Y. Shi,J. Li. Micro Inertial Technology, Beijing: Electronic Industry Press, 2005: 296-300.

[2] D. Ren, Q. Gu, G. Mao, Y. Zheng, X. Liu. Micro Inertial Measurement Unit Calibration Technique [J], Journal of QingHua University, 2001, 41 (8) : 21-28.

[3] Z. Feng, Y. Zou. FCL is not out of the box before the launch of inertial navigation system, a gesture Calibration Method [J]. Chinese Inertial Technology, 2009, 17 (1) : 33-37.

[4] B. Feng, H. Gu, B. Li. Inertial measurement unit quick test method[J]. Missile Technology, 2007, 27 (1) : 30-34.

[5] Theresia C, Becker. Approches to Optimal Inertial Instrument Calibration Using Slewing[D]. Boston: Boston University, (2003).

[6] Z. Zhao. A new method of Accelerometer zero bias measurement[J]. Piezoelectric and acousto-optic. 2000, 22 (6) : 420-422.

[7] J. Li, H. Hong, W. Zhang. Micro Inertial Measurement Unit Calibration Technique [J]. Sensor Technology, 2008, 21 (7) : 1170-1173.

[8] X. Zhang, J. Zhao. A new carrier based on the elliptic constraint magnetic field calibration and compensation techniques [J], Journal of Scientific Instrument, 2009, 30 (11) : 2439-2443.

[9] X. Zhang. Geomagnetic navigation error compensation in the magnetic measurement [D]. Beijing: Beijing University of Aeronautics and Astronautics, 2009: 112-117.

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