基于恒星敏感器的组合导航技术在极地飞行保障中应用的仿真分析

在民航极地航线的快速发展背景下,针对民航客机极地飞行时存在的导航保障能力不足问题,提出了将基于恒星敏感器的天文导航系统(celestial navigation system,CNS)引入民航中,与现有机载惯导系统(inertial navigation system,INS)和全球卫星导航系统(global navi...

Simulation Analysis of the Application of Integrated Navigation Technology Based on Star Sensor in Polar Flight Support

Under the background of the rapid development of civil aviation polar routes, this paper analyzes the lack of navigation support capability of civil aircraft in polar flight. Through the comprehensive study of previous scholars in the field of polar navigation, the Celestial Navigation System(CNS) based on star sensor is introduced into civil aviation, and combined with the existing airborne INS/GNSS to form the INS/GNSS/CNS integrated navigation system. The structure and algorithm of the integrated navigation system in grid coordinate system are studied. The simulation verifies the support capability of the integrated navigation system. Simulation results show that: compared with INS/CNS and INS/GNSS integrated navigation system, the INS/GNSS/CNS integrated navigation system proposed in this paper can not only output navigation information with higher accuracy in normal operation, but also ensure higher navigation accuracy in a long time when a subsystem such as GNSS fails, Simulation results show that the integrated navigation system proposed in this paper can significantly improve the navigation support capability of civil aviation polar flight.