Semi-Physical Simulation of RR/S Attitude Algorithm Based on Non-Holonomic IMU
Автор: Zhong Su,Guodong Fu,Qing Li
Журнал: International Journal of Computer Network and Information Security(IJCNIS) @ijcnis
Статья в выпуске: 1 vol.1, 2009 года.
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Rolling Rocket/Shell (RR/S) can effectively overcome the impact point error caused by the asymmetry of aerodynamic appearance and mass eccentricity .etc. The spatial attitude of RR/S in the process of flight must be studied for that RR/S realizes the guidance control and improves the falling point precision. This paper introduces a semi physical simulation of RR/S attitude algorithm based on non-holonomic Inertial Measurement Unit (IMU) which is composed of 3 orthogonal import rate gyroscopes. It adopts the 902E-1 two-axis turntable to simulate the spatial attitude of RR/S, and uses the non-holonomic IMU, which is fixed on the turntable by ensuring the axes of them to be aimed, to measure the 3-axis angular rate motion of the turntable. By setting the motion condition of the turntable, we can get the 3-axis angular rate data of the IMU and the 3-axis angular position data of the turntable. The attitude algorithm simulation of IMU adopts the four-sample rotation vector algorithm based on MTLAB/Simulink. The simulation results show that the semi-physical simulation method can model the spatial attitude of RR/S truly and provide exact and real-time attitude information of RR/S which is rolling in the two-axis complex movement condition.
Rolling Rocket/Shell (RR/S), non-holonomic IMU, 902E-1 two-axis turntable, first term, four-sample rotation vector algorithm, second term, third term, fourth term, fifth term, semi-physical simulation
Короткий адрес: https://sciup.org/15010975
IDR: 15010975
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