Time-varying gyrocompass alignment for fiber-optic-gyro inertial navigation system with large misalignment angle

Yueyang Ben; Qian Li; Yi Zhang; Liang Huo

doi:10.1117/1.OE.53.9.095103

11 September 2014 Time-varying gyrocompass alignment for fiber-optic-gyro inertial navigation system with large misalignment angle

Yueyang Ben, Qian Li, Yi Zhang, Liang Huo

Author Affiliations +

Optical Engineering, Vol. 53, Issue 9, 095103 (September 2014). https://doi.org/10.1117/1.OE.53.9.095103

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.

Citation Download Citation

Yueyang Ben, Qian Li, Yi Zhang, and Liang Huo "Time-varying gyrocompass alignment for fiber-optic-gyro inertial navigation system with large misalignment angle," Optical Engineering 53(9), 095103 (11 September 2014). https://doi.org/10.1117/1.OE.53.9.095103

Published: 11 September 2014

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