Deduction of the global density of the plasmasphere reconstructed from the observation images using computed tomography technique-the earth's shelter
文献类型：期刊论文
| 作者 | Huang Ya1,2; Xu Rong-Lan1; Li Liang3,4; Jin Xin3 |
| 刊名 | Chinese journal of geophysics-chinese edition
 |
| 出版日期 | 2009-11-01 |
| 卷号 | 52期号:11页码:2683-2688 |
| 关键词 | Density of the plasmasphere Ct Earth's shelter Fbp Art Correlation coefficient |
| ISSN号 | 0001-5733 |
| DOI | 10.3969/j.issn.0001-5733.2009.11.001 |
| 通讯作者 | Huang ya(huang_ya2006@yahoo.com.cn) |
| 英文摘要 | The deduction of the global density of earth plasmasphere from the column density of the plasmasphere is studied by using computed tomography (ct) technique, which has been achieved by the well-known filtered back projection (fbp). due to the earth's shelter, using this method, there will be a gradual deviation from the original phantom diagram especially in the dayside area near the earth, and this deviation can be acknowledged through further quantitative analysis. an improved accuracy of reconstruction is achieved by using the algebraic reconstruction technique (art). their reconstruction quality has been analyzed through the correlation coefficient: between the phantom diagram and the reconstruction results, the value of art approach is 0. 98 while fbp approach is only 0. 86. the result has established that the art is more efficient than the fbp when the phantom diagram includes earth's shelter. |
| WOS关键词 | ART |
| WOS研究方向 | Geochemistry & Geophysics |
| WOS类目 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000272324900001 |
| 出版者 | SCIENCE PRESS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2404082 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Huang Ya |
| 作者单位 | 1.Chinese Acad Sci, Ctr Space Sci & Appl Res, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 3.Tsinghua Univ, Dept Engn Phys, Beijing 100084, Peoples R China 4.Minist Educ, Key Lab Particle & Radiat Imaging, Beijing 100084, Peoples R China |
| 推荐引用方式 GB/T 7714 | Huang Ya,Xu Rong-Lan,Li Liang,et al. Deduction of the global density of the plasmasphere reconstructed from the observation images using computed tomography technique-the earth's shelter[J]. Chinese journal of geophysics-chinese edition,2009,52(11):2683-2688. |
| APA | Huang Ya,Xu Rong-Lan,Li Liang,&Jin Xin.(2009).Deduction of the global density of the plasmasphere reconstructed from the observation images using computed tomography technique-the earth's shelter.Chinese journal of geophysics-chinese edition,52(11),2683-2688. |
| MLA | Huang Ya,et al."Deduction of the global density of the plasmasphere reconstructed from the observation images using computed tomography technique-the earth's shelter".Chinese journal of geophysics-chinese edition 52.11(2009):2683-2688. |
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来源：中国科学院大学
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