Wavelet-based multifractal analysis of the radiation field of first return stroke in cloud-to-ground discharge
文献类型：期刊论文
| 作者 | Gou Xue-Qiang; Zhang Yi-Jun; Dong Wan-Sheng; Qie Xiu-Shu |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2007 |
| 卷号 | 50期号:1页码:101-105 |
| 关键词 | radiation field of return stroke wavelet multifractal lightning |
| ISSN号 | 0001-5733 |
| 通讯作者 | Gou Xue-Qiang(gouxueqiang@nwnu.edu.cn) |
| 英文摘要 | By using electric field change data obtained during the summer of 2002 in Qinghai province, we analyze the detection of the radiation field of first return stroke involved in negative cloud-to-ground lightning discharges and its multifractal behavior with the Wavelet Transform Modulus Maxima (WTMM) method. We find that the variation of wavelet coefficients at the lower level of decomposition exhibit a sharp peak just at the position of the main pulse peak of return stroke (return stroke point), thus the return stoke points can be reliably and effectively detected. We also find that the radiation field of first return stroke exhibits strong multifractality, and all scaling behavior can be fitted with a modified version of the binomial multiplicative cascade multifractal model. The two characteristic parameters, the mean width of spectrum and the minimum spectrum exponent, are 1.5 and -0.11 respectively. We suggest that the wavelet and multifractal method is a powerful tool for detection and reorganization of lightning signals. |
| 收录类别 | SCI |
| WOS关键词 | TIME-SERIES ; EARTHQUAKES |
| WOS研究方向 | Geochemistry & Geophysics |
| WOS类目 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000244338300013 |
| 出版者 | SCIENCE CHINA PRESS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2555985 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Gou Xue-Qiang |
| 作者单位 | 1.NW Normal Univ, Coll Phys & Elect Engn, Lanzhou 730070, Peoples R China 2.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Gou Xue-Qiang,Zhang Yi-Jun,Dong Wan-Sheng,et al. Wavelet-based multifractal analysis of the radiation field of first return stroke in cloud-to-ground discharge[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2007,50(1):101-105. |
| APA | Gou Xue-Qiang,Zhang Yi-Jun,Dong Wan-Sheng,&Qie Xiu-Shu.(2007).Wavelet-based multifractal analysis of the radiation field of first return stroke in cloud-to-ground discharge.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,50(1),101-105. |
| MLA | Gou Xue-Qiang,et al."Wavelet-based multifractal analysis of the radiation field of first return stroke in cloud-to-ground discharge".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 50.1(2007):101-105. |
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来源：寒区旱区环境与工程研究所
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