基于散射光谱的空间碎片分类研究

发布时间：2018-05-24 07:15

本文选题：空间碎片 + 散射光谱　；参考：《光谱学与光谱分析》2015年06期

【摘要】：采用地基光谱探测技术,观测到了最低亮度为4.2星等的空间碎片其分辨率为0.5nm的高精度散射光谱。并对卫星残骸和火箭残骸的光谱数据进行了归一化处理和离散率分析,得到了不同类别目标的明显区别。火箭残骸的多帧散射光谱归一化后线型一致,而对于卫星的多帧散射光谱归一化后线型不一致,对归一化的空间碎片的每一帧光谱求离散率,得到的结果为火箭残骸的离散率低,都在0.978%~3.067%之间,且波动差值及平均值较小;而卫星的每帧归一化散射光谱的离散率高,在3.1184%~19.4727%之间。且波动差值及平均值较大。原因是火箭残骸的结构简单,组成材料较单一,卫星的结构复杂,组成材料较多。因此散射光谱分析可以应用于空间碎片分类的研究。
[Abstract]:By using ground-based spectral detection technique, high precision scattering spectra with a resolution of 0.5nm have been observed for space debris with a minimum brightness of 4.2 magnitude. The spectral data of the satellite wreckage and the rocket wreckage are normalized and the dispersion rate is analyzed, and the obvious differences between different kinds of targets are obtained. The multiframe scattering spectrum of the rocket debris is consistent after normalization, while the linear pattern of the satellite multi-frame scattering spectrum is different after normalization, and the dispersion rate of each frame spectrum of the normalized space debris is obtained. The results show that the dispersion rate of the debris is low, ranging from 0.978% to 3.067%, and the fluctuation difference and average value are small, while the dispersion rate of normalized scattering spectrum per frame of the satellite is high, ranging from 3.1184 to 19.4727%. And the fluctuation difference and average value are larger. The reason is that the structure of the rocket wreckage is simple, the composition material is single, the satellite structure is complex, and the composition material is more. Therefore, scattering spectrum analysis can be applied to the classification of space debris.
【作者单位】：长春理工大学理学院;西安卫星测控中心;
【基金】：国家科技攻关课题(2007BA107A00-1)资助
【分类号】：V528

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