摘要
提出适合于舰船系泊、锚泊状态下的捷联惯性导航系统惯性凝固粗对准方法。在惯性凝固坐标系和惯性坐标系上对重力向量分别进行积分,并利用重力向量随地球旋转在惯性空间的方向变化信息,粗略计算初始捷联姿态矩阵。该方法通过积分抵消掉舰船线性位移引入的干扰加速度,同时,避免了舰船姿态摇摆引入的干扰角速度。仿真分析表明:在舰船系泊、锚泊状态下,惯性凝固粗对准方法比较传统算法优势明显。
The inertial concretionary coarse alignment of strapdown inertial navigation system （SINS） is proposed for the condition that the vessel moor along the dock or on the sea. The gravity vector is integrated on the inertial frame and inertial concretionary frame respectively. And the method utilizes the direction variation of gravity vector for the earth rotation. The strapdown attitude matrix is estimated. The advantage of the proposed method is the disturbed accelerate aroused by liner displacement that are wiped off and rotation velocity by sway are avoided effectively. The simulation and analysis show that the proposed inertial concreted coarse alignment is superior to the conventional one.
出处
《传感器与微系统》
CSCD
北大核心
2009年第5期15-18,共4页
Transducer and Microsystem Technologies
基金
国家自然科学基金资助项目(60674087
60704001)
关键词
捷联惯性导航系统
惯性凝固
粗对准
捷联姿态矩阵
strapdown inertial navigation system（SINS）
inertial concreted
coarse alignment
strapdown attitude matrix
作者简介
于飞（1974-），男，黑龙江哈尔滨人，博士后，研究方向为捷联惯性导航系统初始对准技术。
