MEMS Gyro Aided Calibration of Electronic Compass

Abstract:

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In this paper, an MEMS gyro aided on line calibration algorithm for electronic compass is presented. This electronic compass module consists of a three-axis AMR sensor, a two-axis MEMS tilt sensor and a one-axis MEMS gyro. The automatic calibration method requires to rotate the electronic compass two full 360-degree revolution. In this rotation procedure, magnetic field data, attitude data and angular rate data are recorded. Based on recorded magnetic field data and attitude data, raw heading data is calculated. This raw heading data is verified by angular rate output of MEMS gyro. Results of experiment show that the accuracy of calibrated compass is better than 0.5 deg and MEMS gyro aided on line calibration algorithm is effective for electronic compass.

Info:

Periodical:

Advanced Materials Research (Volumes 443-444)

Edited by:

Li Jian

Pages:

144-149

DOI:

10.4028/www.scientific.net/AMR.443-444.144

Citation:

X. S. Li et al., "MEMS Gyro Aided Calibration of Electronic Compass", Advanced Materials Research, Vols. 443-444, pp. 144-149, 2012

Online since:

January 2012

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Price:

$35.00

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