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  4. 中科院等离子体物理研究所
Optical plasma boundary reconstruction based on least squares for EAST Tokamak

文献类型：期刊论文

作者Luo, Hao1; Luo, Zheng-ping2; Xu, Chao1; Jiang, Wei1
刊名FRONTIERS OF INFORMATION TECHNOLOGY & ELECTRONIC ENGINEERING
出版日期2018-09-01
卷号19期号:9页码:1124-1134
关键词Optical boundary reconstruction Boundary detection Global contrast Least square EAST Tokamak
ISSN号2095-9184
DOI10.1631/FITEE.1700041
通讯作者Jiang, Wei(jiangwei@iipc.zju.edu.cn)
英文摘要Reconstructing the shape and position of plasma is an important issue in Tokamaks. Equilibrium and fitting (EFIT) code is generally used for plasma boundary reconstruction in some Tokamaks. However, this magnetic method still has some inevitable disadvantages. In this paper, we present an optical plasma boundary reconstruction algorithm. This method uses EFIT reconstruction results as the standard to create the optimally optical reconstruction. Traditional edge detection methods cannot extract a clear plasma boundary for reconstruction. Based on global contrast, we propose an edge detection algorithm to extract the plasma boundary in the image plane. Illumination in this method is robust. The extracted boundary and the boundary reconstructed by EFIT are fitted by same-order polynomials and the transformation matrix exists. To acquire this matrix without camera calibration, the extracted plasma boundary is transformed from the image plane to the Tokamak poloidal plane by a mathematical model, which is optimally resolved by using least squares to minimize the error between the optically reconstructed result and the EFIT result. Once the transform matrix is acquired, we can optically reconstruct the plasma boundary with only an arbitrary image captured. The error between the method and EFIT is presented and the experimental results of different polynomial orders are discussed.
WOS关键词FACING COMPONENTS
资助项目National Natural Science Foundation of China[61375049] ; National Natural Science Foundation of China[61473253]
WOS研究方向Computer Science ; Engineering
语种英语
WOS记录号WOS:000450515200006
出版者ZHEJIANG UNIV
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; 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源URL[http://ir.hfcas.ac.cn:8080/handle/334002/34075]  
专题合肥物质科学研究院_中科院等离子体物理研究所
通讯作者Jiang, Wei
作者单位1.Zhejiang Univ, Inst Cyber Syst & Control, Hangzhou 310027, Zhejiang, Peoples R China
2.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Anhui, Peoples R China
推荐引用方式
GB/T 7714		 Luo, Hao,Luo, Zheng-ping,Xu, Chao,et al. Optical plasma boundary reconstruction based on least squares for EAST Tokamak[J]. FRONTIERS OF INFORMATION TECHNOLOGY & ELECTRONIC ENGINEERING,2018,19(9):1124-1134.
APA Luo, Hao,Luo, Zheng-ping,Xu, Chao,&Jiang, Wei.(2018).Optical plasma boundary reconstruction based on least squares for EAST Tokamak.FRONTIERS OF INFORMATION TECHNOLOGY & ELECTRONIC ENGINEERING,19(9),1124-1134.
MLA Luo, Hao,et al."Optical plasma boundary reconstruction based on least squares for EAST Tokamak".FRONTIERS OF INFORMATION TECHNOLOGY & ELECTRONIC ENGINEERING 19.9(2018):1124-1134.

入库方式： OAI收割

来源：合肥物质科学研究院

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