The invention provides a multi-angle observation method based on satellite attitude adjustment, which aims at the requirements of a commercial aerosol observation small satellite on weight and volume, and realizes multi-angle observation only by relying on the position and attitude control system of the satellite. In the method of the present invention, the attitude of a satellite is controlled by a satellite position and attitude control system during a period in which an observation target is within a predetermined range before and after in a satellite travel direction centered on a sub-satellite point of the satellite, so that the attitude of the satellite is controlled in accordance with the travel of the satellite. The included angle between the optical axis of the optical system of the load and the normal of the sub-satellite point, namely the deflection angle of the satellite, is located at a plurality of different angles. In addition, the load is a split-focal-plane polarization multispectral detection system and comprises a split-focal-plane polarization multispectral detector formed by superposing a polarization strip layer and a filtering strip layer on the photosensitive surface of the area array photoelectric sensor. According to the invention, multi-angle observation can be realized under the conditions that the optical design of the lens is not changed and the number of loads is not increased.

    本发明提供一种基于卫星姿态调整的多角度观测方法,针对商用气溶胶观测小卫星对重量和体积的要求,仅依靠卫星本身的位置与姿态控制系统实现多角度观测。在本发明的方法中,在观测目标处于以卫星的星下点为中心的卫星运行方向上的前后规定范围内的期间,通过卫星的位置与姿态控制系统进行卫星的姿态控制,以随着卫星的运行,使载荷的光学系统的光轴与星下点的法线之间的夹角即卫星的偏摆角处于不同的多个角度。另外,载荷是分焦面偏振多光谱探测系统,包括在面阵光电传感器的光敏面上叠加有偏振条带层和滤光条带层构成的分焦面偏振多光谱探测器。采用本发明,能够在不改变镜头的光学设计和增加载荷数量的情况下实现多角度观测。


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    Title :

    Satellite multi-angle observation method and observation satellite system


    Additional title:

    一种卫星多角度观测方法、观测卫星系统


    Contributors:
    HONG JIN (author) / NIE ANRAN (author) / QIU ZHENWEI (author)

    Publication date :

    2024-11-29


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64G Raumfahrt , COSMONAUTICS / G01N Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften , INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES / H04B TRANSMISSION , Übertragung







    OBSERVATION SATELLITE

    MUKAI HISAYUKI | European Patent Office | 2022

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