摘要
提出陆用捷联惯导系统中里程计刻度因子的在线辨识算法 .该算法利用捷联惯导系统在初始对准结束后 ,刚转入导航工作状态的短时间内 ,惯导解算精度高的特点 ,通过加速度计的测量值 ,采用渐消记忆最小二乘递推算法对里程计的刻度因子进行在线辨识 .仿真试验表明 ,该算法有较强的工程实用性 ,能有效地解决里程计测量路程的误差积累问题 ,从而提高整个陆用捷联惯导系统的定位精度 .
An online identification algorithm of odometer's scale factor in land used strapdown inertial navigation system is put forward. Because of the pinpoint accuracy of strapdown inertial navigation system in the short time after initial alignment and before navigation, the fadeout memory LMS algorithm identifies the odometer's scale factor through the measurement values of accelerometers. Simulation indicates that the algorithm will be valuable in engineering. So the problem of distance error accumulation will be well solved and the position accuracy of the whole land used stapdown inertial navigation system will be well improved.
出处
《北京理工大学学报》
EI
CAS
CSCD
北大核心
2003年第2期198-201,共4页
Transactions of Beijing Institute of Technology
基金
总装备部"十五"预研项目 ( 0 0 13 0 90 40 4)
关键词
陆用捷联惯导系统
里程计
刻度因子
land used strapdown inertial navigation system
odometer
scale factor
