INFORMATION CHANGE THE WORLD

International Journal of Computer Network and Information Security(IJCNIS)

ISSN: 2074-9090 (Print), ISSN: 2074-9104 (Online)

Published By: MECS Press

IJCNIS Vol.1, No.1, Oct. 2009

Semi-Physical Simulation of RR/S Attitude Algorithm Based on Non-Holonomic IMU

Full Text (PDF, 837KB), PP.41-48


Views:134   Downloads:4

Author(s)

Zhong Su,Guodong Fu,Qing Li

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", IJCNIS, vol.1, no.1, pp.41-48, 2009.

Reference

[1]Zhen-yu Du, Geng-chen Shi, “Study on the measurement method of projectile attitude,” Journal of Detection & Control, pp.53-56, 2002, (1).

[2]Cheng Zhang, Shu-xing Yang, “A method to get the attitude of a rolling airframe missile,” Transactions of Beijing Institute of Technology, pp. 481-485, 2004, 24(6).

[3]Dong-cai Qu, Development of “Strap-down Inertial Navigation System and Its Military Application,” Subject Development, pp. 27-30, 2004.

[4]Yong-yuan Qin, “Inertial Navigation,” Beijing: Science Press, pp.305-317, 2006.

[5] Dohyoung Chung, Jang Gyu Lee, and Chan Gook Park, “Strap-down INS error model for multi-position alignment,” Aerospace and Electronic Systems, pp. 1362- 1366, IEEE Transactions on Vol32, Oct. 1996.

[6]Yan-bo Li, Ming Zeng, “Influence of Three-axis Turntable Error Source on Pendulous Integrating Gyro Accelerometer Testing,” Aviation Precision Manufacturing Technology, pp. 28-31, Vol.44, No.2, Apr. 2008.

[7]Dong Li, Jin-jiang Liu, “Simulation and Realization of m Sequence Based on MATLAB,” Journal of Chongqing Institute of Technology (Natural Science), pp. 139-141, Vol.22, No.4, Apr. 2008.