Six-position calibration for the fiber optic gyro based on a double calculating program

Qiuying Wang; Zhao Qi; Feng Sun

doi:10.1117/1.OE.52.4.043603

12 April 2013 Six-position calibration for the fiber optic gyro based on a double calculating program

Qiuying Wang, Zhao Qi, Feng Sun

Author Affiliations +

Optical Engineering, Vol. 52, Issue 4, 043603 (April 2013). https://doi.org/10.1117/1.OE.52.4.043603

Abstract

The noncomplete compensated calibration errors of a fiber optic gyro (FOG) can remain in the navigation stage, leading to decreased navigation accuracy. A new approach is presented to calibrate the FOG drift and scale factor error based on a double calculating program. Using an analysis of the relationship between the FOG error and misalignment, a FOG calibration error model is derived, and a three-step six-position calibration path is analyzed. In this method, the FOG drift and scale factor error are calculated from two groups of attitude information, which are resolved, respectively, from calculating programs A and B in the navigation computer. The input signal of these two calculating programs is measured from one FOG. Its effectiveness is demonstrated by simulation and turntable experiments. The results show that this method can further compensate the residual calibration errors with misalignments, thereby improving the FOG calibration accuracy.

Citation Download Citation

Qiuying Wang, Zhao Qi, and Feng Sun "Six-position calibration for the fiber optic gyro based on a double calculating program," Optical Engineering 52(4), 043603 (12 April 2013). https://doi.org/10.1117/1.OE.52.4.043603

Published: 12 April 2013

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

;

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE