天文导航在导航星座自主完好性检测中的应用

The Application of Celestial Navigation in Nvigational Constellation Autonomous Integrity Monitor

本文介绍了导航系统完好性的定义．论述了天文导航的技术方案。提出把天文导航应用于星间链路定位的解算和导航星座自主完好性检测的技术方案中，讨论了合理的完好性检测门限。研究了反馈模型中卡尔曼滤波的使用，得出了结论。

In this paper, the definition of navigation system integrity is introduced. The methods of celestial navigation are described. It is proposed that the celestial constellation could be applied in the satellite to satellite link positioning and autonomous integrity monitor for navigational constellation. The reasonable integrity check threshold is discussed. Moreover, the application of Kalman filter in feedback model is studied. Some meaningful conclusions are obtained from the study.