Roll Angle Estimation for Smart Munitions

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Park, HeeYoung; Kim, KwangJin; Lee, Jang Gyu; Park, Chan Gook
Issue Date
IFAC Symposium on Automatic Control in Aerospace 2007
smart munitioninertial measurement unitroll estimationextended Kalman filter
The roll angle is estimated only using the pitch and yaw rates for a gunlaunched
smart munition with fast rolling of 1~2 Hz. An extended Kalman filter is
designed based on the roll, pitch, and yaw dynamics and two MEMS gyroscopes
measuring pitch and yaw rates. It is simulated under a realistic condition with low-grade
gyroscopes. The simulation results show that the roll angle is estimated with an accuracy
of 1~3 deg. (1-sigma error). The filter also exhibits that it is robust to the scale factor and
bias errors of the MEMS gyroscopes. And the proposed algorithm is experimented using
a two-axis rate table and a low grade MEMS IMU. The results show that the algorithm
can be applied to an actual system.
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College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Mechanical Aerospace Engineering (기계항공공학부)Others_기계항공공학부
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