空间碎片光谱特性获取与分析方法研究

空间碎片的反射光谱是碎片表面材料与太阳光谱共同作用的结果，能够反映碎片的材料性质，为空间碎片的光学特性研究提供依据. 将观测获得的空间碎片反射光谱进行预处理后，与已知空间材料样本的光谱进行比对，比较两者间光学特性差异，包括连续反射光谱曲线中的峰值、斜率、形态、特征窄波段、吸收谱线和多波段反射光谱间的成像差异、色指数、特征温度等，分辨碎片表面可能的材料，最终实现对空间碎片光学特性的研究.

A Review on the Acquisition and Analysis Methods of Spectral Characteristics of Space Debris

The reflectance spectrum of space debris is the interactive result of the space debris material and the solar spectrum, which can reflect the material nature of space debris and provide the basis for studying the optical properties of space debris. In this paper, we preprocess the observed space debris images, extract debris spectral curves, correct spectral data of atmospheric turbulence and then compare the actually observed reflectance spectra of space debris with the known space material reflectance spectra. The optical properties differences between them, such as peak, slope, shape, narrow band characteristics, absorption lines in the continuous reflectance spectrum curve and imaging differences, color indices, characteristic temperature in multiband can be analyzed. Then the space debris can be distinguished from others by its surface materials finally.