Research on Two-Position North-Seeking Method Based on the Single Axis FOG

Abstract:

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The basic working principle and the two-position north-seeking method based on single-axis FOG(fiber optic gyroscope) is researched in this paper. Improved north-seeking method was proposed to solve the problem in the two-position FOG north-seeking scheme. To Sample in three positions of 0º, 90ºand 180ºseparately and obtain the measurement values of angular rate in these three positions. Then according to the measurement values of angular rate in the first and the third positions to calculate the north-seeking angle, and using the positive and negative pulse outputs of the FOG in the second position to obtain the specific direction information of carrier. So that, accomplish the north-seeking in the range of 0~360° for single-axis FOG. The experiment results showed that the accuracy of the improved two-position north-seeking program based on single-axis FOG is 0.101 (1σ) within 4 minutes.

Info:

Periodical:

Advanced Materials Research (Volumes 301-303)

Edited by:

Riza Esa and Yanwen Wu

Pages:

1489-1494

DOI:

10.4028/www.scientific.net/AMR.301-303.1489

Citation:

D. H. Li et al., "Research on Two-Position North-Seeking Method Based on the Single Axis FOG", Advanced Materials Research, Vols. 301-303, pp. 1489-1494, 2011

Online since:

July 2011

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Price:

$35.00

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