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综合考虑卫星的背景特性、材料特性、结构特性和轨道特性,研究了在轨运行卫星存在的自旋稳定、三轴稳定和“翻滚”三种运动状态对卫星光学特性的影响。基于光辐射理论,结合探测器的性能参数,建立了自旋稳定、三轴稳定和“翻滚”三种运动类型卫星的多谱段光学特性计算的数学模型,并进行了实验验证。以海洋一号卫星和实践二号卫星为例,进行了运动状态对卫星多谱段光学特性影响的仿真分析。仿真结果表明,不同运动状态的卫星多谱段辐射特性存在较大的差异。分析结果可为卫星的探测和辨识提供一定的参考价值。
Considering the satellite’s background, material properties, structural characteristics and orbital characteristics, the effects of three kinds of motion states, ie, spin-stable, tri-axial stability and "roll Based on the theory of light radiation, combined with the performance parameters of the detector, mathematical models for calculating the multi-spectral optical properties of three types of satellites with spin-stable, tri-axial and tumbling motion are established and validated experimentally. Take the Ocean One and Practice II as examples, the simulation analysis of the influence of the motion state on the optical characteristics of multi-band satellite is carried out. The simulation results show that there are big differences in the multi-band radiation characteristics of satellites in different motion states. The results of the analysis can provide certain reference value for satellite detection and identification.