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利用EUV模拟观测和CT方法重建均匀等离子体层全球密度分布三维ART重建和地球遮挡效应研究
Alternative TitleDeduction of the global density of plasmasphere reconstructed from the EUV images using CT method 2.Three dimensional parallel-beam ART reconstruction
金鑫; 李亮; 陈志强; 徐荣栏; 黄娅; 张丽; czq@tsinghua.edu.cn
Department空间科学部
Source Publication地球物理学报
2011
Volume54Issue:7Pages:1691-1700
ISSN0001-5733
Language中文
Keyword三维平行束重建 Art迭代 地球遮挡问题
Abstract本文对地球等离子体层和电离层进行了三维建模,并模拟卫星对30.4 nm极紫外线的探测过程,取得圆轨道平行束情况下的投影数据.采用改进的ART算法对所得数据进行三维重建,获得等离子体层的空间密度分布.结果表明,在投影角度覆盖180~。的情况下,重建结果很好地再现了模型中空间各点的数值.文章对实验结果从 CT重建方法的角度进行了讨论及分析.
Other AbstractIn this paper we built up a three dimensional model for the density distribution of earth plasmasphere.According to the physical procedure of 30.4 nm EUV detection,a numerical method was proposed which simulates the satellite imaging the plasmasphere along a circular orbit.To reconstruct the density distribution in such occasion a modified ART reconstruction method was worked out.Results showed that our method reconstructs the model very well.
Indexed BySCI ; EI ; CSCD
Funding Project中国科学院空间科学与应用研究中心
Citation statistics
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/3055
Collection空间科学部
Corresponding Authorczq@tsinghua.edu.cn
Recommended Citation
GB/T 7714
金鑫,李亮,陈志强,等. 利用EUV模拟观测和CT方法重建均匀等离子体层全球密度分布三维ART重建和地球遮挡效应研究[J]. 地球物理学报,2011,54(7):1691-1700.
APA 金鑫.,李亮.,陈志强.,徐荣栏.,黄娅.,...&czq@tsinghua.edu.cn.(2011).利用EUV模拟观测和CT方法重建均匀等离子体层全球密度分布三维ART重建和地球遮挡效应研究.地球物理学报,54(7),1691-1700.
MLA 金鑫,et al."利用EUV模拟观测和CT方法重建均匀等离子体层全球密度分布三维ART重建和地球遮挡效应研究".地球物理学报 54.7(2011):1691-1700.
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