摘要
用四元数和旋转矢量在捷联惯导系统中表示姿态矩阵,在圆锥运动的条件下,对旋转矢量算法进行了优化。对四元数、旋转矢量优化算法进行了仿真比较。仿真结果表明:等效旋转矢量算法明显优于四元数算法。
Attitude matrix is represented by quaternion and rotation vector in strapdown inertial navigation system.The quaternion algorithm and the improved rotation vector algorithm are discussed under the condition of conical motion.Simulation results show that when the sample frequency is higher,the accuracy of the rotation vector algorithm is better than that of quaternion algorithm.
出处
《航天控制》
CSCD
北大核心
2010年第1期37-39,共3页
Aerospace Control
基金
国家"863"资助项目
关键词
捷联式惯导系统
四元数
旋转矢量
三子样
Strapdown inertial navigation System
Quaternion
Rotation vector
Three-sample
