11 September 2014 Time-varying gyrocompass alignment for fiber-optic-gyro inertial navigation system with large misalignment angle
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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.
© 2014 Society of Photo-Optical Instrumentation Engineers (SPIE)
Yueyang Ben, Yueyang Ben, Qian Li, Qian Li, Yi Zhang, Yi Zhang, Liang Huo, 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 . Submission:
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