Influence of earth's reflective radiation on space target for space based imaging | |
其他题名 | 地表反照光对天基空间目标的成像影响 |
Yan, PP(闫佩佩); Ma, CW(马彩文); She, WJ(折文集) | |
作者部门 | 光电测量技术实验室 |
2015-08-20 | |
发表期刊 | ACTA PHYSICA SINICA
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ISSN | * |
卷号 | 64期号:16 |
产权排序 | 1 |
摘要 | The space-based surveillance, which would mainly use the space-based visible, has great value for civil and military applications currently and for a fairly long future period. In space-based surveillance, the visible and near-infrared radiation characteristics of the space target are influenced by its attitude variation. This influence is especially prominent in space-based imaging. In some ways, solar radiation cannot arrive at the surface of the space target, or the arriving radiation is not uniformly distributed because of the space target's strong reflection at a particular position. In order to solve these problems, the visible and near-infrared illumination characteristics of the space target surface are analyzed. Moreover, a notion that earth's reflective radiation can be used as illumination for space target imaging is given, and an accurate modeling method is proposed. Firstly, based on diffuse reflectance model, a method of mathematically calculating the illumination at space target's position from earth's reflective radiation is established. And a formula for calculating illumination is derived. Secondly, the coordinates of sun and space target at any time can be obtained by the Satellite tool kit software, in which the complicated multiplying matrix and coordinate transformation algorithm introduced in some references are avoided. Thirdly, the method of estimating earth's reflective radiation region at arbitrary moment is introduced. The grid division method is generated and the uniform sampling is used in each small area. Fourthly, the position of a surface cell is transformed from the sphere reference frame into the J2000.0 inertial frame. The earth's reflective radiation can be calculated through numerical integration. Finally, the illumination from earth's reflective radiation to a sun synchronous orbit satellite in an imaging mission based on space is calculated by the given parameters. The results show that the earth's reflective radiation is luminous enough for space target imaging when the satellite passes through arctic. When the satellite moves on the orbit, we can obtain more detailed information about target satellites' bottom then the ground simulation imaging. The on-orbit imaging results demonstrate the validity of the modeling method, which could support the foundation of our space-based surveillance system theoretically and technically and could be used as a reference of space-based orbit measurement and determination in deep space exploration. |
文章类型 | Article |
关键词 | Space Optics Space-based Imaging Earth's Reflective Radiation Modeling And Simulation |
WOS标题词 | Science & Technology ; Physical Sciences |
DOI | 10.7498/aps.64.169501 |
收录类别 | SCI ; EI |
语种 | 中文 |
WOS研究方向 | Physics |
WOS类目 | Physics, Multidisciplinary |
WOS记录号 | WOS:000362976800056 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.opt.ac.cn/handle/181661/25490 |
专题 | 光电跟踪与测量技术研究室 |
推荐引用方式 GB/T 7714 | Yan, PP,Ma, CW,She, WJ. Influence of earth's reflective radiation on space target for space based imaging[J]. ACTA PHYSICA SINICA,2015,64(16). |
APA | Yan, PP,Ma, CW,&She, WJ.(2015).Influence of earth's reflective radiation on space target for space based imaging.ACTA PHYSICA SINICA,64(16). |
MLA | Yan, PP,et al."Influence of earth's reflective radiation on space target for space based imaging".ACTA PHYSICA SINICA 64.16(2015). |
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地表反照光对天基空间目标的成像影响.pd(718KB) | 期刊论文 | 出版稿 | 限制开放 | CC BY-NC-SA | 请求全文 |
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