Elhalwagy, Y., Arafa, I., Mostafa, K. (2006). COMPUTATIONAL ERRORS OF ANALYTIC COARSE ALIGNMENT FOR STRAP DOWN INERTIAL NAVIGATION SYSTEM (SDINS). test, 5(5th International Conference on Electrical Engineering ICEENG 2006), 1-10. doi: 10.21608/iceeng.2006.33640
Y. Z. Elhalwagy; I. I. Arafa; K. H. Mostafa. "COMPUTATIONAL ERRORS OF ANALYTIC COARSE ALIGNMENT FOR STRAP DOWN INERTIAL NAVIGATION SYSTEM (SDINS)". test, 5, 5th International Conference on Electrical Engineering ICEENG 2006, 2006, 1-10. doi: 10.21608/iceeng.2006.33640
Elhalwagy, Y., Arafa, I., Mostafa, K. (2006). 'COMPUTATIONAL ERRORS OF ANALYTIC COARSE ALIGNMENT FOR STRAP DOWN INERTIAL NAVIGATION SYSTEM (SDINS)', test, 5(5th International Conference on Electrical Engineering ICEENG 2006), pp. 1-10. doi: 10.21608/iceeng.2006.33640
Elhalwagy, Y., Arafa, I., Mostafa, K. COMPUTATIONAL ERRORS OF ANALYTIC COARSE ALIGNMENT FOR STRAP DOWN INERTIAL NAVIGATION SYSTEM (SDINS). test, 2006; 5(5th International Conference on Electrical Engineering ICEENG 2006): 1-10. doi: 10.21608/iceeng.2006.33640

COMPUTATIONAL ERRORS OF ANALYTIC COARSE ALIGNMENT FOR STRAP DOWN INERTIAL NAVIGATION SYSTEM (SDINS)

The International Conference on Electrical Engineering
Article 54, Volume 5, 5th International Conference on Electrical Engineering ICEENG 2006, May 2006, Pages 1-10    PDF (129.61 K)
Document Type: Original Article
DOI: 10.21608/iceeng.2006.33640
Authors
Y. Z. Elhalwagy; I. I. Arafa; K. H. Mostafa
Egyptian Armed Forces.
Abstract
ABSTRACT:
In this paper, two proposed computational methods of coarse alignment for strap
down inertial navigation systems (SDINS) are presented. Their associated drift, skew,
and scale alignment errors are evaluated analytically. Although the computational
formulas for analytic ground alignment are identical in the ideal case, the error
characteristics are dependent upon the employed basis. With properly selecting the
basis to compute the best estimate of transformation matrix, the drift misalignment
angles of analytic alignment can be made to be equivalent to those, which can be found
by physical gyro-compassing.
Keywords
Inertial sensors; Inertial navigation system; strap down systems; alignment and error analysis
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