Attitude Estimation of a Projectile using Magnetometers and Accelerometers: Experimental Validation

S. Changey, E. Pecheur, T. Brunner

Abstract: A priori information given by the complete modeling of the ballistic behavior (trajectory, attitude) of a projectile is simplified to give a pertinent reduced evolution model. An Extended Kalman Filter (EKF) is designed to estimate three attitude angles from measurements of the magnetic field of the earth given by a three axis magnetometer sensor embedded on the projectile, completed with a three axis accelerometer. The algorithm has been tested on real data recorded during a free flight test over a distance of 400 meters. The results show that we can estimate milliradians with non-linear equations and approximations, with good accuracy.
Published in: Proceedings of IEEE/ION PLANS 2014
May 5 - 8, 2014
Hyatt Regency Hotel
Monterey, CA
Pages: 1168 - 1173
Cite this article: Changey, S., Pecheur, E., Brunner, T., "Attitude Estimation of a Projectile using Magnetometers and Accelerometers: Experimental Validation," Proceedings of IEEE/ION PLANS 2014, Monterey, CA, May 2014, pp. 1168-1173.
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