里程仪刻度因子的动态标校  

A Dynamic Calibration of Odometer for Vehicles

作　　者：张金红[1] 李岁劳[1] 杨洪友[2] 瞿贇 

机构地区：[1]西北工业大学自动化学院,西安710072 [2]西安飞行自动控制研究所,西安710065 [3]中国兵器工业第203研究所,西安710065

出　　处：《弹箭与制导学报》2007年第3期56-58,共3页Journal of Projectiles,Rockets,Missiles and Guidance

摘　　要：为进一步提高车载导航系统的定位精度,文中研究了SINS/里程仪组合中的刻度因子动态标校,推导了组合系统卡尔曼滤波方程并进行系统仿真。结果表明,该组合系统经过里程仪刻度系数误差动态标校后,里程仪刻度系数误差可从10-2提高到10-4量级,提高里程仪测量精度的同时,组合系统的定位精度也得到了提高。A dynamic calibration technology is developed in order to improve the positioning precision of vehicles. The observational measures of the SINS/OD are the velocity＇s differences between SINS and OD, and the SINS/OD also adopts a closed loop Kalman filter to estimate and correct the errors. The results of simulation given in this paper indicate that the tightly coupled system can effectively improve on the scale factor of OD and the positioning precision.

关 键 词：捷联惯导 卡尔曼滤波 里程仪 动态标校 

分 类 号：V249.3[航空宇航科学与技术—飞行器设计]