南京航空航天大学学报（英文版）2003，Vol.20Issue(1)：47-52,6.
一种改进的激光捷联旋转矢量姿态算法
AN IMPROVED ROTATION VECTOR ATTITUDE ALGORITHM FOR LASER STRAP-DOWN INERTIAL NAVIGATION SYSTEM
摘要
Abstract
The laser gyro is most suitable for building the strap-down inertial navigation system (SINS), and its accuracy of attitude algorithm can enormously affect that of the laser SINS. This paper develops three improved algorithmal expressions for strap-down attitude utilizing the angular increment output by the laser gyro from the last two and current updating periods according to the number of gyro samples, and analyses the algorithm error in the classical coning motion. Compared with the conventional algorithms, simulational results show that this improved algorithm has higher precision. A new way to improve the rotation vector algorithms is provided.关键词
激光陀螺/捷联惯性/圆锥运动/旋转矢量/误差分析/四元数Key words
laser gyro/strap-down attitude algorithm/coning motion/rotation vector/error analysis/quaternion分类
交通工程引用本文复制引用
林雪原,刘建业,刘红..一种改进的激光捷联旋转矢量姿态算法[J].南京航空航天大学学报（英文版）,2003,20(1):47-52,6.基金项目
Supported by the National Defense Pre-Research Foundation.国防预研基金资助项目. （）
