BD卫星星间链路定轨结果及分析

发布时间：2018-05-03 01:20

本文选题：北斗导航卫星 + 星间链路　；参考：《测绘学报》2017年05期

【摘要】：我国新一代北斗导航系统试验卫星搭载了高精度星间链路载荷并已经得到了实测数据。本文给出了星间链路数据预处理方法,并介绍了星间链路数据独立定轨和星间Ka测量与L波段数据联合定轨的方法和初步结果。利用3颗试验卫星和1个地面Ka站在轨试验,结果表明:独立采用星间链路定轨,其结果 R方向误差小于0.5m;星间链路数据与L波段数据联合定轨,其对L波段定轨结果有显著改善,轨道R方向误差小于0.3m;星间测量设备时延标校精度优于0.1m。
[Abstract]:A new generation of Beidou navigation system test satellite in China carries high precision intersatellite link load and has obtained measured data. In this paper, the preprocessing method of intersatellite link data is presented, and the method and preliminary results of data independent orbit determination and inter-satellite Ka measurement combined with L band data orbit determination are introduced. Using 3 test satellites and 1 terrestrial Ka station in orbit test, the results show that the error of R direction is less than 0.5 m, and the intersatellite link data and L band data are combined to determine the orbit, the results show that the orbit determination is independent of intersatellite link, and the error of R direction is less than 0.5 m. The result of orbit determination in L band is improved obviously, the error of orbit R direction is less than 0.3 m, and the accuracy of time delay calibration of intersatellite measuring equipment is better than 0.1 m.
【作者单位】：地理信息工程国家重点实验室;西安测绘研究所;
【基金】：国家自然科学基金(41204020)~~
【分类号】：P228.4

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