Application of random sample consensus method for parameter estimation of reflectometry density profile in toroidal plasma
文献类型：期刊论文
| 作者 | Ye, K. X.2,3,4; Zhang, T.2,3 ; Wang, Y. M.2,3; Wen, F.2,3,4; Wu, M. F.2,3,4; Huang, J.2,3,4; Li, G. S.2,3; Geng, K. N.5,6; Zhou, Z.1,7; Zhong, F. B.2,3,4
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| 刊名 | REVIEW OF SCIENTIFIC INSTRUMENTS
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| 出版日期 | 2021-04-01 |
| 卷号 | 92 |
| ISSN号 | 0034-6748 |
| DOI | 10.1063/5.0035962 |
| 通讯作者 | Wen, F.(wenfei@ipp.ac.cn) |
| 英文摘要 | Microwave reflectometry diagnostics have been widely used to measure density profiles in fusion plasma. However, the high sensitivity of the diagnostics to plasma turbulence often results in large radial deviations in the edge density profile and causes difficulty in profile evaluation. To improve the performance of profile evaluation, a modified RANdom SAmple Consensus (RANSAC) method has been applied to fit the density profiles measured by reflectometry on the experimental advanced superconducting tokamak. Compared with the traditional least-squares method, the modified RANSAC method is much more efficient and robust in fitting the experimental profiles. Furthermore, a combination of RANSAC and a genetic algorithm (GA-RANSAC) is used to further optimize the profile evaluation procedure. The results show that this GA-RANSAC method yields better performance and stabler convergence than the modified RANSAC alone. |
| 资助项目 | National Key R&D Program of China[2017YFE0301205] ; National Natural Science Foundation of China[11875289] ; National Natural Science Foundation of China[11675211] ; National Natural Science Foundation of China[11805136] ; National Natural Science Foundation of China[12075284] |
| WOS研究方向 | Instruments & Instrumentation ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000637638700001 |
| 出版者 | AMER INST PHYSICS |
| 资助机构 | National Key R&D Program of China ; National Natural Science Foundation of China |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/121699]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Wen, F. |
| 作者单位 | 1.Nanchang Univ, Jiangxi Prov Key Lab Fus & Informat Control, Nanchang 330031, Jiangxi, Peoples R China 2.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Anhui, Peoples R China 3.Chinese Acad Sci, Hefei Inst Phys Sci, Hefei 230031, Anhui, Peoples R China 4.Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China 5.Shenzhen Univ, Adv Energy Res Ctr, Shenzhen 518060, Peoples R China 6.Shenzhen Univ, Coll Optoelect Engn, Minist Educ & Guangdong Prov, Key Lab Optoelect Devices & Syst, Shenzhen 5180602, Peoples R China 7.Nanchang Univ, Dept Phys, Nanchang 330031, Jiangxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ye, K. X.,Zhang, T.,Wang, Y. M.,et al. Application of random sample consensus method for parameter estimation of reflectometry density profile in toroidal plasma[J]. REVIEW OF SCIENTIFIC INSTRUMENTS,2021,92. |
| APA | Ye, K. X..,Zhang, T..,Wang, Y. M..,Wen, F..,Wu, M. F..,...&Zhang, S. B..(2021).Application of random sample consensus method for parameter estimation of reflectometry density profile in toroidal plasma.REVIEW OF SCIENTIFIC INSTRUMENTS,92. |
| MLA | Ye, K. X.,et al."Application of random sample consensus method for parameter estimation of reflectometry density profile in toroidal plasma".REVIEW OF SCIENTIFIC INSTRUMENTS 92(2021). |
入库方式： OAI收割
来源：合肥物质科学研究院
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