空间目标表面包覆材料褶皱对光散射特性的影响

李鹏; 李智; 徐灿

doi:10.11728/cjss2018.06.934

空间目标表面包覆材料褶皱对光散射特性的影响

doi: 10.11728/cjss2018.06.934

李鹏¹,
李智²,
徐灿²

1. 航天工程大学研究生院北京 101416;
2. 航天工程大学北京 101416

基金项目:

国家高技术研究发展计划项目资助（2015AA7046104）

详细信息

作者简介:
李鹏,E-mail:693078757@qq.com

中图分类号: O432.1;V45
计量
- 文章访问数: 772
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- 被引次数: 0
出版历程
- 收稿日期: 2017-06-29
- 修回日期: 2017-11-08
- 刊出日期: 2018-11-15

Influence of Covering Material Wrinkles on Space Object's Optical Scattering Characteristics

1. Graduate School, Space Engineering University, Beijing 101416;
2. Space Engineering University, Beijing 101416

摘要

摘要: 空间目标表面包覆材料的不规则褶皱对其光散射特性具有显著影响.对空间目标表面褶皱进行分类并分析不规则褶皱形成的主要原因.以金聚酰亚胺薄膜样片为研究对象，搭建样片辐射亮度测量系统，获取不同褶皱程度样片的辐射亮度数据.将辐射亮度转换为星等进行分析发现，理论计算与实验测量得到的星等曲线趋势存在较大差异，主要表现为：平面材料的单一镜面反射现象消失；样片在多个角度上出现分散的较强散射点；褶皱程度越高，分散的强散射点越多.结果表明，在对空间目标的光散射特性进行数值计算时，必须充分考虑表面包覆材料褶皱的影响，根据褶皱情况修正数值计算模型，这对空间目标的探测和识别具有重要意义.
- 空间目标 /
- 不规则褶皱 /
- 光散射特性 /
- 镜反射 /
- 实验测量
Abstract: The irregular wrinkles of coating materials on space object's surface have a significant influence on its optical scattering characteristics. The wrinkles of space object's surface are classified and the main causes of these wrinkles are analyzed. By taking the gold polyimide film samples as the research object, a radiance measurement system is set up to obtain the radiance data of different wrinkled samples. The experimental radiance is converted into magnitude. There are great differences in the magnitude curves by comparing the theoretical calculations and experimental measurements. The single specular reflection phenomenon disappears and the reflection energy is scattered at multiple angles. Moreover, the higher degree of winkles is, the more strong scattering points are. The results show that the influence of the coating wrinkles must be taken into account when calculating the space object's optical scattering characteristics. The numerical calculation model can be revised according to the wrinkles conditions, which have great significance on the detection and identification of space objects.
- Space object /
- Irregular wrinkle /
- Optical scattering characteristics /
- Specular reflection /
- Experimental measurement

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