基于STK的空间目标可见光散射特性建模与仿真

李艳杰; 金光; 钟兴

doi:10.11728/cjss2013.02.188

基于STK的空间目标可见光散射特性建模与仿真

doi: 10.11728/cjss2013.02.188

李艳杰^1,2,
金光¹,
钟兴¹

1.
中国科学院长春光学精密机械与物理研究所长春 130033
2.
中国科学院大学北京 100049

基金项目: 国家高技术研究发展计划项目资助(2011AA7020103)

详细信息

中图分类号: P3
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出版历程
- 收稿日期: 2011-12-22
- 修回日期: 2012-10-09
- 刊出日期: 2013-03-15

Modeling and simulation of visible light scattering properties of spatial object using STK

1.
Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033
2.
University of Chinese Academy of Sciences, Beijing 100049

摘要

摘要: 为给天基光学观测系统的设计和性能研究提供数据支持, 建立了基于STK的天基探测空间目标等效星等计算模型. 选用双向反射分布函数(BRDF)五参量计算模型, 分析了空间目标面元的可见光散射特性; 根据目标几何结构尺寸和物性参量等建立目标几何模型, 对该模型进行面元划分, 推导了空间目标在天基观测系统入瞳处的等效星等计算公式; 结合卫星工具包(STK)提供的太阳、目标卫星、观测卫星三者的关系数据, 建立了基于STK的易于求解的目标星等计算模型, 对此模型进行实例仿真和分析, 并与漫反射计算模型进行比较. 结果表明BRDF模型得到的辐照度曲线比漫反射模型更曲折且存在峰值现象, 更符合目标表面材料的实际特性, 此外, 与STK的结合运用, 使其可更加方便快捷地获得目标最佳观测时段及相应的等效星等.
- 空间目标 /
- 天基观测 /
- 双向反射分布函数 /
- 等效星等 /
- Satellite Tool Kit (STK)
Abstract: For supplying the space-based optical observation system designer with referenced data, equivalent magnitude model of spatial object is established using STK. First, the visible light scatting characteristics of spatial object surface cell is analyzed by using BRDF five-parameter model. Second, combined with the characteristics of object shape and material property, the configuration model of space target is built, and formulation of equivalent magnitude computing model of space object is carried out by analyzing every single surface cell. Last, Satellite Tool Kit (STK) was used to provide relationship among sun, space object and observation satellite to simplify the solving of the formulation, and then, a new magnitude computing model based on STK is established. It was verified with one example and some analyses. The result displays that the new model is much more precise than the diffuse one. Besides, the results show that the best observing time and the corresponding magnitude can be easily solved with STK.
- Space target /
- Space-based observation /
- BRDF /
- Equivalent magnitude /
- STK

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参考文献(9)

[1]	Zhou Yiyu, Li Jun, An Wei. Information processing technology in optical space-based space surveillance[J]. Opto-Elec. Eng., 2008, 35(4):43-48. In Chinese (周一宇, 李骏, 安玮. 天基光学空间目标监视信息处理技术分析[J]. 光电工程, 2008, 35(4):43-48)
[2]	Harvey J B, Vemold C L. Transfer function characterization of scattering surfaces revisited[J]. Proc. SPIE, 2004, 3141:113-128
[3]	Zeng Dexian, Du Xiaoping. Analysis and simulation of characteristics of space objects for space-borne optical sensor[J]. Chin. J. Space Sci., 2008, 28(6):560-566. In Chinese (曾德贤, 杜小平, 空间目标在天基光学探测中的特性分析与仿真[J]. 空间科学学报, 2008, 28(6):560-566)
[4]	Liu Jianbin, Wu Jian. Light scattering of spatial target[J]. J. Astron., 2006, 27(4):802-805. In Chinese (刘建斌, 吴健. 空间目标的光散射研究[J]. 宇航学报, 2006, 27(4):802-805)
[5]	Wu Zhensen, Dou Yuhong. Visible light scattering and infrared radiation of spatial object[J]. Acta Opt. Sin., 2003, 23(10):1250-254. In Chinese (吴振森, 窦玉红. 空间目标的可见光散射与红外辐射[J]. 光学学报, 2003, 23(10):1250-254)
[6]	Cao Yunhua, Wu Zhensen, Zhang Hanlu, et al. Research on light scatting of spatial targets based on spectral BRDF of target samples[J]. Acta Phot. Sin., 2008, 37(11):2264-2268. In Chinese (曹运华, 吴振森, 张涵璐, 等. 基于粗糙样片光谱BRDF的空间目标可见光散射研究[J]. 光子学报, 2008, 37(11):2264-2268)
[7]	Wu Ying, Yang Ling. A method of modeling spatial objects visible light scattering characteristic[J]. J. Harbin Univ. Sci. Tech., 2009, 14(2):82-85. In Chinese (吴英, 杨玲. 空间目标的可见光散射特性建模与仿真研究[J]. 哈尔滨理工大学学报, 2009, 14(2):82-85)
[8]	Zhang Wei, Wang Hongyuan, Wang Zhile, Sun Chengming. Modeling method for visible scattering properties of space target[J]. Acta Phot. Sin.. 2008, 37(12):2462-2467. In Chinese (张伟, 汪洪源, 王治乐, 孙成明. 空间目标可见光散射特性建模方法研究[J]. 光子学报, 2008, 37(12):2462-2467)
[9]	Wu Zhensen, Xie Donghui, Xie Pinhua. Modeling reflectance function from rough surface and algorithms[J]. Acta Opt. Sin., 2002, 22(8):897-901. In Chinese (吴振森, 谢东辉, 谢品华. 粗糙表面激光散射统计建模及其算法[J]. 光学学报, 2002, 22(8):897-901)