A Calibration Method of Three-Axis Magnetometer With Noise Suppression

作者:Song Zhongguo; Zhang Jinsheng; Zhang Xuehui; Xi Xiaoli*
来源:IEEE Transactions on Magnetics, 2014, 50(11): 4007004.
DOI:10.1109/TMAG.2014.2327166

摘要

This paper presents a new algorithm for the onboard calibration of three-axis magnetometers under noisy environment. The ordinary least squares (OLS) estimator is inconsistent for ellipsoid fitting problem. Proper corrections of the OLS estimator are derived, which can provide a consistent solution to the magnetometer's calibration parameters without noise preknown. Simulation and experimental results are presented and discussed, supporting the application of the algorithm in the noisy platform.