航天测量船惯导平台航向效应的动态标定与补偿

摘要

The heading effect is the important factor that influences the precision of inertial navigation system. In order to improve the precision of inertial navigation system, this essay explores the heading effect's orderliness of navigation platform in dynamic of TT&C-Shhip, deduces corresponding mathematic model and conducts a method of heading effect data processing. At the same time a heading effect calibrating and compensating technique is introduced. The result shows that this method could eliminate error efficiently and acquire data meeting navagation of high efficiency, therefore, it has some actual application value.%航向效应是影响惯性导航系统精度的重要因素。为了提高惯性导航系统数据输出精度,在分析航向效应产生原因的基础上,探索了航天测量船惯导平台航向效应的变化规律,推导出海上动态情况下的数学模型和数据拟合处理方法,提出了测量船航向效应的海上标定与补偿技术。数据表明:测量船惯导平台航向效应的海上标定与补偿技术的应用能减小系统误差0.5个数量级,极大地提高了测量船惯性导航系统数据精度,具有一定的实际应用价值。