TRANSVERSE METACENTER HEIGHT ESTIMATION DEVICE AND TRANSVERSE METACENTER HEIGHT ESTIMATION METHOD
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May 20, 2015
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May 20, 2014
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Provided is a transverse metacenter height estimation device that includes: a history storage means for storing time sequence data of the roll angle of a hull; and a transverse metacenter height estimation means that estimates the transverse metacenter height of the hull on the basis of the time sequence data of the roll angle of the hull, such data stored by the history storing means. The transverse metacenter height estimation device is characterized in that the transverse metacenter height estimation means first calculates a roll natural frequency on the basis of the time sequence data of the roll angle of the hull, sets the calculated roll natural frequency as an observation model, carries out state estimation on the basis of a normal state spatial model in which the transverse metacenter height and the gyration radius of the hull are used as state variables, and thereby estimates the transverse metacenter height.
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