Small-size floating platform complex sea condition multi-mode fusion transfer alignment method and system

• Main Authors: CHEN WEI, JIANG SHAN, QIAN MENGHAO, SUN RUISHENG, MA XIAOYU, CAO JIARONG
• Format: Patent
• Language: Chinese; English
• Published: 02.04.2024
• Subjects: GYROSCOPIC INSTRUMENTS; MEASURING; MEASURING DISTANCES, LEVELS OR BEARINGS; NAVIGATION; PHOTOGRAMMETRY OR VIDEOGRAMMETRY; PHYSICS; SURVEYING; TESTING

The invention discloses a small-size floating platform complex sea condition multi-mode fusion transfer alignment method and system, and the method comprises the steps: firstly carrying out the statistics of large-amplitude low-frequency attitude information occupying a dominant position in sea wave attitude motion under different sea condition levels in an area where a floating platform is located, and taking the information as corresponding sea condition information; secondly, under different sea condition information, performing numerical analysis according to the prior information to obtain an optimal measurement parameter corresponding to the sea condition grade, and obtaining an optimal measurement noise covariance matrix corresponding to the measurement parameter; and then, in order to cope with an actual sea condition complex excitation scene, carrying out multimode fusion conversion on a time sequence by utilizing the optimal measurement noise covariance matrix, the initial measurement noise covarian