| 空间目标红外特征仿真模型 |
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| 引用本文： | 厉夫兵,许小剑.空间目标红外特征仿真模型[J].北京航空航天大学学报,2009,35(11):1330-1334. |
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| 作者姓名： | 厉夫兵 许小剑 |
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| 作者单位： | 北京航空航天大学 电子信息工程学院, 北京 100191 |
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| 摘 要： | 建立了一种基于三维场景的空间目标红外辐射特征计算模型.模型对多层介质目标进行几何建模与三维剖分,考虑目标微动时太阳和地球对目标加热的影响,计算了目标外表面的辐射散热及内腔壁面元间的辐射换热,在此基础上完成目标的三维导热计算,利用Gauss-Seidel迭代法求解微元体的温度,进而计算了中长波和长波红外波段目标自身的辐射、对外热源的反射以及总的辐射亮度图像和辐射强度曲线.研究表明,无自旋的目标在圆周方向受太阳加热不均,温差显著;自旋使目标圆周方向温差减小,温度分布趋于均匀.
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| 关 键 词： | 热传导 红外辐射 仿真 |
| 收稿时间： | 2008-10-30 |
Infrared signature simulation model for space objects |
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| Li Fubing,Xu Xiaojian.Infrared signature simulation model for space objects[J].Journal of Beijing University of Aeronautics and Astronautics,2009,35(11):1330-1334. |
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| Authors: | Li Fubing Xu Xiaojian |
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| Institution: | School of Electronics and Information Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China |
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| Abstract: | Based on specified three-dimensional scene,an infrared signature simulation model for space objects was developed.Firstly,an object was geometrically modeled and decomposed into micro-elements in three-dimensions.Formulation for surface heating of the object with micro-motion dynamics from the sun and earth was derived.Energy dissipated into space from outer surface as well as the thermal exchange between facets of inner surface was calculated.In this way,three-dimensional thermal conduction of a ballistic ... |
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| Keywords: | heat conduction infrared radiation simulation |
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