摘要
为提高Doppler/SINS组合导航系统在运动基座下的导航精度,根据Doppler/SINS组合导航系统跑车试验中发现的一些现象,提出了利用载体作匀速圆周运动的初始对准方法.该方法可以快速估计出SINS的平台失准角并能提高对平台失准角的估计精度,跑车试验验证了该方法的可行性和有效性.理论分析表明,该方法可以较大幅度地缩小对平台失准角估计的稳态极限值,具有较好的工程应用前景.
In order to improve the precision of Doppler/SINS integrated navigation system with moving base, an initial alignment method was proposed by making a uniform circular motion of the car according to the phenomena found in the Doppler/SINS navigation system tests. The platform error-angles of the SINS can be estimated quickly, and prediction precise can be improved by this method. Experiment verified the feasibility and validity of this method. Theoretical analysis shows that the steady state limit of the estimation can be highly reduced by proposed method, and the method is valuable for engineering application.
出处
《弹道学报》
EI
CSCD
北大核心
2009年第1期51-54,共4页
Journal of Ballistics
基金
国家部委基金项目(51430601052S53301)
关键词
组合导航
初始对准
多普勒导航系统
卡尔曼滤波
integrated navigation
initial alignment
Doppler navigation system
Kalman filter
