International Journal of Computer Network and Information Security (IJCNIS)
IJCNIS Vol. 1, No. 1, 8 Oct. 2009
Cover page and Table of Contents: PDF (size: 838KB)
Semi-Physical Simulation of RR/S Attitude Algorithm Based on Non-Holonomic IMU
Full Text (PDF, 838KB), PP.41-48
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Author(s)
Zhong. Su
1,*
Guodong. Fu
2
Qing. Li
1
Index Terms
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
Abstract
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.
Cite This Paper
Zhong. Su, Guodong. Fu, Qing. Li, "Semi-Physical Simulation of RR/S Attitude Algorithm Based on Non-Holonomic IMU", International Journal of Computer Network and Information Security(IJCNIS), vol.1, no.1, pp.41-48, 2009. DOI:10.5815/ijcnis.2009.01.06
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