The invention discloses a fixed star starlight background-based low-orbit satellite orbital transfer detection method and system, and the method comprises the steps: defining coordinate systems which comprise an earth-centered earth-fixed coordinate system, a celestial sphere inertial coordinate system and a star sensor coordinate system; a star point image, a fixed star database and a satellite ephemeris database are obtained through measurement of a starlight sensor, in a coordinate system, the corresponding relation between each star point in the star point image and the fixed star database and the corresponding relation between each star point and the satellite ephemeris database are calculated through a triangular matching algorithm, and fixed star points and satellite star points are recognized; and by taking the identified fixed star point as a reference basis, according to the movement track of the satellite star point in the star point image and the historical ephemeris in the satellite ephemeris database, carrying out inversion calculation on a satellite space movement position, comparing the satellite space movement position with a space movement position predicted based on the historical ephemeris, and judging whether satellite orbital transfer occurs or not. According to the invention, the detection cost is low, the detection task is convenient to execute, and the detection method has strong autonomy and anti-interference performance.

    本发明公开了一种基于恒星星光背景的低轨卫星变轨检测方法及系统,该方法包括:定义坐标系,包括地心地固坐标系、天球惯性坐标系、星敏感器坐标系;通过星光传感器测量获取星点图像,获取恒星数据库、卫星星历数据库,在坐标系中,通过三角匹配算法计算星点图像中各星点与恒星数据库、卫星星历数据库之间的对应关系,识别恒星星点和卫星星点;以识别的恒星星点为参考基础,根据卫星星点在星点图像中的运动轨迹以及卫星星历数据库中的历史星历,反演计算卫星空间运动位置,将其与基于历史星历预报的空间运动位置进行对比,判断是否发生卫星变轨。本发明检测成本低、检测任务执行便利,且检测方法具有较强的自主性和抗干扰性。


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    Low earth orbit satellite orbital transfer detection method and system based on fixed star starlight background


    Weitere Titelangaben:

    一种基于恒星星光背景的低轨卫星变轨检测方法及系统


    Beteiligte:
    YANG LONGHE (Autor:in) / YIN YEHONG (Autor:in) / ZHANG LINYUAN (Autor:in) / PENG JIERU (Autor:in) / PENG YU (Autor:in) / YE CHAO (Autor:in)

    Erscheinungsdatum :

    25.04.2025


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    G06V / B64G Raumfahrt , COSMONAUTICS / G06T Bilddatenverarbeitung oder Bilddatenerzeugung allgemein , IMAGE DATA PROCESSING OR GENERATION, IN GENERAL





    Autonomous fixed star observation method and system for ultra-low orbit satellite

    TANG TAO / WU HUIYING / WANG GUOHUA et al. | Europäisches Patentamt | 2023

    Freier Zugriff

    High-orbit satellite orbital transfer regulation and control method and system

    LIU WENSHAN / XING RUIYANG / ZHAI HUA et al. | Europäisches Patentamt | 2022

    Freier Zugriff