基于卫星实测数据的X射线脉冲星导航体制验证  

X-ray pulsar-based navigation verification based on satellite measured data

作　　者：张大鹏 呼延宗泊 李恒年 ZHANG Dapeng;HUYAN Zongbo;LI Hengnian(State Key Laboratory of Astronautic Dynamics,Xi’an 710043,China)

机构地区：[1]宇航动力学国家重点实验室,西安710043

出　　处：《航空学报》2023年第3期109-116,共8页Acta Aeronautica et Astronautica Sinica

摘　　要：介绍了X射线脉冲星序贯观测导航体制和脉冲星导航基本原理。提出了基于卫星实测数据的脉冲星导航基本观测量处理方法。针对中国首颗大型天文卫星“慧眼”(Insight-HXMT)的能粒子探测器载荷观测的原始观测数据,给出了导航观测量处理精度结果。同时将卫星精密定轨星历作为标称轨道,与X射线脉冲星导航定位结果进行对比,得出了Insight-HXMT卫星数据的X射线脉冲星导航精度约为10 km的结论。最后,针对实测数据导航结果讨论了本次试验的不足并给出了未来脉冲星导航试验的建议。The basic principles of X-ray pulsar-based navigation and X-ray pulsar sequential observation are introduced.An observation value processing method is proposed based on measured satellite data.Based on the original observation data received by the high energy X-ray detector in China’s first large-scale astronomical satellite"InsightHXMT",the processing accuracy results of the navigation observation value are given.At the same time,the precise orbit determination ephemeris is used as the standard orbit,and is compared with the X-ray pulsar navigation results.It is concluded that the accuracy of X-ray pulsar-based navigation of the Insight-HXMT satellite data is about 10 km.Finally,according to the navigation results of the measured data,the insufficient aspects of this experiment are discussed and future suggestions are given.

关 键 词：X射线脉冲星导航 实测数据 Insight-HXMT卫星 自主导航 光子 

分 类 号：V419[航空宇航科学与技术—航空宇航推进理论与工程]