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http://dx.doi.org/10.5370/KIEE.2016.65.6.1038

Design of SDINS Rapid Initial Alignment Technique Robust to the Pyro-shock in Multi-Launch Rocket System  

Lee, Hyung-Sub (Agency for Defence Development)
Han, Kyung-Jun (Agency for Defence Development)
Lee, Sang-Woo (Agency for Defence Development)
Yu, Myeong-Jong (Agency for Defence Development)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.65, no.6, 2016 , pp. 1038-1044 More about this Journal
Abstract
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.
Keywords
Initial alignment; Transfer alignment; Horizontal alignment; SDINS;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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