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本文阐述了利用X射线脉冲星实现航天器姿态确定的成像仪定姿、探测器扫描定姿和垂直双矢量相对定位姿态的3种方法,介绍了其基本原理;分析了3类方法与现有姿态确定方法相比存在的优势;并利用仿真数据分析了垂直双矢量相对定位姿态确定方法;研究了时延测定误差、可观测脉冲星数、脉冲星历表误差等对姿态确定精度的影响,得出了有益的结论。
In this paper, we describe three methods of determining the orientation of the spacecraft using X-ray pulsar, such as the attitude of the imager, the scanning attitude of the detector and the relative positioning orientation of the vertical double vector. The basic principles are introduced. The method of attitude determination is compared with the existing advantages; the method of determining the relative orientation of vertical double vectors is analyzed by simulation data; the influence of delay measurement error, observable pulsar number and pulsar ephemeris error on pose determination accuracy is studied, Draw useful conclusions.