The invention relates to an in-orbit sun angle calculation and correction method and satellite-borne software, and relates to the technical field of in-orbit sun capture and two-dimensional rotation mechanism control, and the method mainly comprises the following steps: receiving a satellite attitude sent by a satellite in real time and a sun vector under an orbital coordinate system, and judging the correctness of data; then, according to the correctness of the data, the solar azimuth angle and the pitch angle can be calculated in an on-orbit mode by adopting a mode of correcting the solar vector or not correcting the solar vector according to a data injection command, and the sign of the calculated solar azimuth angle and pitch angle can be corrected in an on-orbit mode according to data injection symbol parameters; and the two-dimensional rotating mechanism rotates according to the calculated azimuth angle and pitch angle of the sun in the guide mirror coordinate system so as to realize sun capture. Calculation and correction of the in-orbit sun angle are achieved, it is guaranteed that a two-dimensional rotating mechanism of the solar remote sensing instrument can achieve in-orbit sun capturing, and the situation that the whole task fails due to the fact that the solar remote sensing instrument cannot capture the sun in an in-orbit mode is avoided.

    本发明涉及一种在轨太阳角度计算与修正方法及星载软件,涉及在轨太阳捕获、二维转动机构控制技术领域,其中方法主要包括以下步骤:接收卫星实时发送的卫星姿态和轨道坐标系下太阳矢量并判断数据的正确性,然后根据数据的正确性,可在轨根据数据注入命令采用矫正太阳矢量或者不矫正太阳矢量的方式来计算太阳方位角和俯仰角度,并且可在轨根据数据注入符号参数修正计算的太阳方位角和俯仰角度的正负号,使二维转动机构根据计算的太阳在导行镜坐标系下方位角、俯仰角度转动以实现对日捕获。本发明实现了在轨太阳角度的计算以及修正,保证太阳遥感仪器二维转动机构能够实现在轨对日捕获,避免太阳遥感仪器在轨无法捕获太阳导致整个任务失败。


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    Title :

    On-orbit sun angle calculation and correction method and satellite-borne software


    Additional title:

    一种在轨太阳角度计算与修正方法及星载软件


    Contributors:
    SHAO YINGQIU (author) / LI ZHANFENG (author) / HUANG YU (author) / LI BO (author) / LIN GUANYU (author)

    Publication date :

    2023-04-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64G Raumfahrt , COSMONAUTICS




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