Magnetometer and Gyroscope Calibration Method with Level Rotation
AbstractMicro electro mechanical system (MEMS) gyroscopes and magnetometers are usually integrated into a sensor module or chip and widely used in a variety of applications. In existing integrated gyroscope and magnetometer calibration methods, rotation in all possible orientations is a necessary condition for a good calibration result. However, rotation around two or more axes is difficult to attain, as it is limited by the range of movement of vehicles such as cars, ships, or planes. To solve this problem, this paper proposes an integrated magnetometer and gyroscope calibration method with level rotation. The proposed method presents a redefined magnetometer output model using level attitude. New gyroscope and magnetometer calibration models are then deduced. In addition, a simplified cubature Kalman filter (CKF) is established to estimate calibration parameters. This method possesses important value for application in actual systems, as it only needs level rotation for real-time calibration of gyroscopes and magnetometers. Theoretical analysis and test results verify the validity and feasibility of this method. View Full-Text
Share & Cite This Article
Wu, Z.; Wang, W. Magnetometer and Gyroscope Calibration Method with Level Rotation. Sensors 2018, 18, 748.
Wu Z, Wang W. Magnetometer and Gyroscope Calibration Method with Level Rotation. Sensors. 2018; 18(3):748.Chicago/Turabian Style
Wu, Zongkai; Wang, Wei. 2018. "Magnetometer and Gyroscope Calibration Method with Level Rotation." Sensors 18, no. 3: 748.
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.