Title :
A Calibration Method of Three-Axis Magnetometer With Noise Suppression
Author :
Song Zhongguo ; Zhang Jinsheng ; Zhang Xuehui ; Xi Xiaoli
Author_Institution :
Xi´an Univ. of Technol., Xi´an, China
Abstract :
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.
Keywords :
calibration; estimation theory; least squares approximations; magnetometers; OLS estimator; fitting problem; noise suppression; onboard calibration method; ordinary least square estimator; three-axis magnetometer; Calibration; Ellipsoids; Magnetic sensors; Magnetometers; Noise; Vectors; Calibration; measurement model; three-axis magnetometer;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2014.2327166
