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Optical Engineering

Time-varying gyrocompass alignment for fiber-optic-gyro inertial navigation system with large misalignment angle
Author(s): Yueyang Ben; Qian Li; Yi Zhang; Liang Huo
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Paper Abstract

Conventional strapdown gyrocompass alignment methods are based on the assumption that the fiber-optic-gyro inertial navigation system has a small azimuth misalignment angle. A large azimuth misalignment angle would lead to an extension of the alignment duration. A time-varying gyrocompass alignment method to solve this problem is provided. An appropriate parameter setting is given for the gyrocompass alignment with a large misalignment angle. Also, a proper protocol for a parametric switch is derived. Simulation and trail results show that the proposed method has better alignment performance than conventional ones, as the system has large misalignment angles.

Paper Details

Date Published: 11 September 2014
PDF: 7 pages
Opt. Eng. 53(9) 095103 doi: 10.1117/1.OE.53.9.095103
Published in: Optical Engineering Volume 53, Issue 9
Show Author Affiliations
Yueyang Ben, Harbin Engineering Univ. (China)
Qian Li, Harbin Institute of Technology (China)
Yi Zhang, Beijing Aerospace Automatic Control Institute (China)
Liang Huo, Harbin Engineering Univ. (China)

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