Abstract
Angular matching method was used to measure ship’s deformation, three-axis fiber optic gyroscope units(FGU) are installed on various point of the ship, based on the model advanced by Mochalov, considering the character of ship’s static deforming angle varies, a quasi-static model was established, Kalman filter was introduced to estimate the ship’s quasi-static and dynamic deforming angles. To make the estimation more precise, gyro drifts was taking into account. Besides the theory simulation, practical experiment in sea area is also carried out, which lays the firm foundation for actual application of ship deformation measurement based on three-axis fiber optic gyroscope.
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