31 January 2013 Research on self-calibration method for tri-axial magnetic compass
Author Affiliations +
Proceedings Volume 8759, Eighth International Symposium on Precision Engineering Measurement and Instrumentation; 875948 (2013) https://doi.org/10.1117/12.2014427
Event: International Symposium on Precision Engineering Measurement and Instrumentation 2012, 2012, Chengdu, China
Abstract
A novel method for the self-calibration of a tri-axial magnetic compass is discussed in this paper. Firstly, the conventional calibration method of tri-axial magnetometer in compass based on ellipsoid fitting is theoretically analyzed, and its weakness is demonstrated. Secondly, an improved calibration scheme for both the magnetometer and accelerometer in a tri-axial magnetic compass is proposed, which utilize the invariance of the dot product of two constant vectors and can overcome the disadvantages of the ellipsoid fitting method. The proposed method is verified by numerical simulation and experiment, and the results prove its superiority over the conventional algorithm of ellipsoid fitting.
© (2013) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Zhi Li, Zhi Li, Xiang Li, Xiang Li, } "Research on self-calibration method for tri-axial magnetic compass", Proc. SPIE 8759, Eighth International Symposium on Precision Engineering Measurement and Instrumentation, 875948 (31 January 2013); doi: 10.1117/12.2014427; https://doi.org/10.1117/12.2014427
PROCEEDINGS
6 PAGES


SHARE
Back to Top