Some tests and improvements to the VFISV: Very Fast Inversion of the Stokes Vector for the Helioseismic and Magnetic Imager
文献类型：期刊论文
| 作者 | Teng, Fei ; Deng, Yuan-Yong; Deng Yuanyong; Teng Fei
|
| 刊名 | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
 |
| 出版日期 | 2014-11-01 |
| 卷号 | 14期号:11页码:1469-1480 |
| 关键词 | Sun: magnetic fields methods: numerical techniques: polarimetric |
| 英文摘要 | Some experimental tests and improvements to the Very Fast Inversion of the Stokes Vector program, which is designed for the inversion calculation used by the Helioseismic and Magnetic Imager instrument on the Solar Dynamics Observatory, are given. On one hand, the interpolation for calculating the Voigt function is not smooth, which may occasionally cause the iteration process to converge to different minima although they are very close to initial values. This problem can be solved by a smoother interpolation. On the other hand, in order to improve the performance of this program, we have tried to abandon the randomly-jump-out strategy and set the initial value properly to avoid non-global minima. The resulting method costs only 1 / 4 of the computational time, and will be very competitive when the users are only interested in the vectorial magnetic fields and the velocities along the line of sight. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000344601200010 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/6618]  |
| 专题 | 国家天文台_太阳物理研究部 |
| 作者单位 | Chinese Acad Sci, Natl Astron Observ, Key Lab Solar Act, Beijing 100012, Peoples R China |
| 推荐引用方式 GB/T 7714 | Teng, Fei,Deng, Yuan-Yong,Deng Yuanyong,et al. Some tests and improvements to the VFISV: Very Fast Inversion of the Stokes Vector for the Helioseismic and Magnetic Imager[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2014,14(11):1469-1480. |
| APA | Teng, Fei,Deng, Yuan-Yong,Deng Yuanyong,&Teng Fei.(2014).Some tests and improvements to the VFISV: Very Fast Inversion of the Stokes Vector for the Helioseismic and Magnetic Imager.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,14(11),1469-1480. |
| MLA | Teng, Fei,et al."Some tests and improvements to the VFISV: Very Fast Inversion of the Stokes Vector for the Helioseismic and Magnetic Imager".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 14.11(2014):1469-1480. |
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来源：国家天文台
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