一种改进的捷联惯导系统优化算法  

Improved Optimization Algorithm for Strapdown Inertial Navigation System

作　　者：张朝飞[1] 杨孟兴[1] 吴明强[2] 

机构地区：[1]中国航天第十六研究所,陕西西安710100 [2]第二炮兵装备研究院,北京100085

出　　处：《现代防御技术》2012年第5期80-85,共6页Modern Defence Technology

摘　　要：在应用旋转矢量的捷联惯导系统姿态解算中,针对圆锥误差提出了一种利用前M个周期输出的N子样通用补偿算法,通过对偶得到相应的划船误差补偿算法,算法的系数可由矩阵的简单计算获得,无需繁琐推导。通过理论分析和仿真验证,这种算法在不提高采样率前提下完成误差补偿,对提高惯性系统精度颇有帮助。In the positioning calculation of rotation vector applied in strapdown inertial navigation system, in order to improve the accuracy of coning error M recurrent updating period provide sculling general a simple matrix computation accuracy without increasing compensation, a general algorithm N sample with is provided. The principle of duality between coning and sculling was used to compensation algorithm. The coefficients of this algorithm can be acquired by rather than deduce work. This algorithm can improve the error compensation the number of sample through theory analysis and simulative results.

关 键 词：旋转矢量 捷联惯导系统 圆锥误差 对偶 划船误差 

分 类 号：TJ765.3[兵器科学与技术—武器系统与运用工程] TP301.6[自动化与计算机技术—计算机系统结构]