The invention provides an interference star sensor and a spacecraft. The interference star sensor comprises a light splitting element; the vertical transmission assembly detects that light in the vertical direction passes through the vertical transmission assembly to form vertical moire fringes; the horizontal transmission assembly detects that light in the horizontal direction passes through the horizontal transmission assembly to form horizontal moire fringes; and the energy processing assembly is arranged at the output ends of the vertical transmission assembly and the horizontal transmission assembly, and the vertical moire fringes and the horizontal moire fringes are superposed and orthogonal through the energy processing assembly so as to generate coordinate energy points. According to the invention, the restrictive relationship between the single-star measurement precision and the field of view of the traditional star sensor based on the centroid positioning technology is broken, the energy loss is reduced, the energy utilization rate is improved, the detection difficulty is reduced, and high-precision detection in the two-dimensional direction can be realized without coupling two single-axis star sensors. Compared with conventional interference with air as a medium, the optical path can be greatly increased under the same distance, so that the measurement precision is remarkably improved.

    本发明提供一种干涉星敏感器及航天器,其包括:分光元件;垂直透射组件,探测竖直方向的光经过其形成竖直莫尔条纹;水平透射组件,探测水平方向的光经过其形成水平莫尔条纹;能量处理组件,能量处理组件设置于垂直透射组件及水平透射组件的输出端,竖直莫尔条纹及水平莫尔条纹通过能量处理组件叠加正交,以产生坐标能量点。本发明打破了基于质心定位技术的传统星敏感器的单星测量精度与视场之间的制约关系,减少了能量损失,提高了能量利用率,降低了探测难度,无需耦合两个单轴星敏感器即可实现二维方向上的高精度探测。相比于常规以空气为介质的干涉,在同样的距离下能够大幅增加光程,由此使得测量精度得以显著提升。


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    Title :

    Interference star sensor and spacecraft


    Additional title:

    一种干涉星敏感器及航天器


    Contributors:
    MA TAO (author) / ZHANG YULIANG (author)

    Publication date :

    2024-11-08


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    G01C Messen von Entfernungen, Höhen, Neigungen oder Richtungen , MEASURING DISTANCES, LEVELS OR BEARINGS / B64G Raumfahrt , COSMONAUTICS / G02B Optische Elemente, Systeme oder Geräte , OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS




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