晃动基座下的SINS初始对准方法研究  

Research on Initial Alignment Algorithm for Swaying Based on SINS

作　　者：颜开思[1] 刘亚龙[1] 

机构地区：[1]中国电子科技集团公司第二十研究所,西安710068

出　　处：《现代导航》2017年第4期249-252,共4页Modern Navigation

摘　　要：晃动基座条件下陀螺和加速度计测量的地球自转角速度和重力加速度受到了摇摆晃动的干扰,无法根据陀螺和加速度计的输出直接获得初始姿态矩阵。针对这一问题,采用一种基于重力加速度的对准方法,通过静基座和晃动基座的对准试验验证了基于重力加速度对准算法的有效性,证明了该方法具有一定的工程应用价值。Because the measurements of gyro and accelerometer are perturbed by swaying under the condition of swaying base, the initial attitude matrix cannot be obtained from the measurements. As to solve this problem, an alignment method based on gravity acceleration was proposed. And the validity of the proposed algorithm was verified by the stationary base experiment and swaying base experiment. The results show that the algorithm is valuable for engineering application.

关 键 词：晃动基座 对准 捷联惯性导航系统 

分 类 号：V249[航空宇航科学与技术—飞行器设计]