Publisher : The Korean Institute of Electrical Engineers
DOI : 10.5370/KIEE.2016.65.6.1038
Title & Authors
Design of SDINS Rapid Initial Alignment Technique Robust to the Pyro-shock in Multi-Launch Rocket System Lee, Hyung-Sub; Han, Kyung-Jun; Lee, Sang-Woo; Yu, Myeong-Jong;
In this paper, a SDINS(Strapdown Inertial Navigation System) rapid initial alignment technique robust to the pyro-shock in multi-launch rocket system is proposed. The proposed method consists of three steps. Firth, transfer alignment is performed to estimate misalignment between MINS(Master INS) and SINS(Slave INS), and the estimated misalignment is written in the memory when transfer alignment is completed. Next, the pre-filtering process is performed to get rid of the acceleration error induced by launcher vibration. Finally, the horizontal alignment is performed to compensate misalignment variation caused by pyro-shock. We verified the performance of the proposed alignment method comparing with the conventional transfer alignment method. The simulation shows that the proposed initial alignment technique improves alignment performance.
D. Jone, C. Roberts, D. tarrant, C. Tang, C. F. Lin, "Transfer Alignment Design and Evaluation Environment", Aerospace Control Systems 1993. Proceeding. The First IEEE Regional Conference, 1993.5, pp. 753-757.
Y. Lim and J. Lyou, "An Error Compensation Method for Transfer Alignment", IEEE Conference, 2001.
K. W. Song, S. J. Lee, "The Kalman Filter Design for the Transfer Alignment by Euler Angle Matching", Journal of Control, Automation and Systems Engineering, vol.7, no.12, 2001.12, pp. 1044-1050.
M. J. Yu, C. J. Park, "Rapid Alignment for SDINS Using Equivalent Linear Transformation", Journal of The Korean Society for Aeronautical and space sciences, vol.35, no.5, 2007.5, pp.419-425
D. H. Titterton and J. L. Weston, Strapdown Inertial Navigation Technology, Peter Peregrinus Ltd., 1997.
K. W. Song, C. B. Jeon, J. Lyou, "A Transfer Alignment Algorithm Using Velocity and Quaternion Partial Matching Methods", Journal of control, automation and systems engineering, vol. 3, no. 3, 1997.6, pp. 238-243