Observability Improvement of Transfer Alignment for Ground Launchers with Engine Vibration

Chul Woo Kang and Chan Gook Park

Abstract:	Typical transfer alignment algorithms face limitations when it comes to stationary ground vehicles because the system is unobservable. In this paper, the proposed method estimates attitude error using the regular vibrations caused by the running engines or power generators on-board of a vehicle in a stationary state. The vibration is always occurred by engines or power generators. The amplitude of oscillation is used as measurements for a new algorithm. By using new algorithm, the yaw angle can be observable even in alignment of a stationary vehicle. This work shows the possibility of a new means of taking measurements for alignment.
Published in:	Proceedings of the 27th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2014) September 8 - 12, 2014 Tampa Convention Center Tampa, Florida
Pages:	1802 - 1806
Cite this article:	Kang, Chul Woo, Park, Chan Gook, "Observability Improvement of Transfer Alignment for Ground Launchers with Engine Vibration," Proceedings of the 27th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2014), Tampa, Florida, September 2014, pp. 1802-1806.
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