The instantaneous linear motion information measurement method based on inertial sensors for ships

作     者：Xu Yang Jing Huang Chen Gao Wei Quan Ming Li Yanshun Zhang 

作者机构：1School of Instrumentation Science & Optoelectronics Beihang University Beijing 100191 China 2Tianjin Zhong Wei Aerospace Data System Technology Co. Ltd Tianjin 300301 China 3Tianjin Key Laboratory of Intelligent Information Processing in Remote Sensing Tianjin 300100 China 4Military Representative Office Positioned in 699 Factory of PLA Beijing 100039 and China 

出 版 物：《AIP Conference Proceedings》 

年 卷 期：2018年第1967卷第1期

学科分类：07[理学] 0702[理学-物理学] 

摘      要：Ship instantaneous line motion information is the important foundation for ship control, which needs to be measured accurately. For this purpose, an instantaneous line motion measurement method based on inertial sensors is put forward for ships. By introducing a half-fixed coordinate system to realize the separation between instantaneous line motion and ship master movement, the instantaneous line motion acceleration of ships can be obtained with higher accuracy. Then, the digital high-pass filter is applied to suppress the velocity error caused by the low frequency signal such as schuler period. Finally, the instantaneous linear motion displacement of ships can be measured accurately. Simulation experimental results show that the method is reliable and effective, and can realize the precise measurement of velocity and displacement of instantaneous line motion for ships.