单/双轴旋转惯导融合技术在航天测量船的应用  

Application of single/double axis inertial navigation fusion technology in space survey ship

作　　者：周海渊[1] 房新兵[1] 舒东亮[2] 李仁龙[1] 刘建春 ZHOU Haiyuan;FANG Xinbing;SHU Dongliang;LI Renlong;LIU Jianchun(China Satellite Maritime Tracking&Controlling Department,Jiangyin 214431,China;Tainjin Navigation Instrument Research Insititute,Tianjin 300131,China)

机构地区：[1]中国卫星海上测控部,江阴214431 [2]天津航海仪器研究所,天津300131

出　　处：《中国惯性技术学报》2023年第11期1061-1066,共6页Journal of Chinese Inertial Technology

基　　金：装备预先研究项目(50917030101)。

摘　　要：惯性导航系统(INS)可以为航天测量船建立高精度的坐标系基准,同时连续提供高精度的姿态、速度和位置等导航系统信息,是航天测量船核心设备之一。针对INS旋转调制引起的姿态、速度稳定性降低问题,提出一种单/双轴旋转惯导融合方法。从单轴和双轴惯导的工作原理出发,对两者的误差特性进行了综合比对分析,得到两种调制形式惯导设备导航信息特点,设计融合滤波器将两者信息优势结合,以在卫导拒止条件下,获得更高精度的自主导航信息。最后进行了实验验证,实验结果表明,工作在自主导航模式下的双轴惯导系统,经过与单轴系统信息融合后速度和姿态稳定性精度提高50%以上,保障了航天测量船的测控性能。Inertial navigation system(INS)can establish a high-precision coordinate system reference for the space survey ship,and provide high-precision attitude,speed and position navigation system information continuously.INS is one of the core equipment of the space survey ship.In order to solve the problem of decreasing attitude and velocity stability caused by rotational modulation,a method of single/dual axis rotational inertial navigation fusion is proposed.Based on the working principle of single/dual axis rotational INS,the error characteristics of the two modulation forms of INS are analyzed,and the characteristics of the navigation information of the two INS are obtained.A fusion filter is designed to combine the advantages of the two INS in order to obtain the autonomous navigation information with higher accuracy under the condition of GNSS rejection.Finally,the verification tests of fusion filter are carried out.The test results show the speed and attitude stability accuracy of the dual-axis inertial navigation system after information fusion working in the autonomous navigation mode are improved by more than 50%compared with that of the double-axis system,which guarantees the measurement and control performance of the space survey ship.

关 键 词：惯性导航系统 旋转调制 融合滤波 航天测量船 

分 类 号：U666.1[交通运输工程—船舶及航道工程]