| Identification of highly oscillatory ultrasonic NDE echoes through evolutionary algorithm | |
| Tong, F. ; Tong F(童峰) ; Xu, X. M. ; Xu XM(许肖梅) ; Fang, S. L.（Southeast Univ, Dept Radio Engn, Nanjing 210018, Peoples R China） | |
| 2008-08-15 | |
| 关键词 | ultrasonic NDE characterisation methods sensors |
| 英文摘要 | The performance of ultrasonic non-destructive estimation (NDE) is strongly dependent on the axial resolution of ultrasonic echoes. However, the highly band-pass signals commonly used in ultrasonic NDE systems pose significant limitations upon the time resolution enhancement due to seriously oscillatory cost function under classic estimation methods. In the present paper, a novel approach to improve the fidelity of sinusoidal NDE signals is presented which incorporating the pre-whitening of the non-linear least-squares (LS) cost function with the evolutionary optimization to facilitate the efficient search of global minimum. Simulation results are presented, demonstrating the feasibility of the proposed algorithm. (C) 2008 Elsevier B.V. All rights reserved. |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE BV |
| 内容类型 | 期刊论文 |
| 源URL | [http://dx.doi.org/doi:10.1016/j.matlet.2008.04.050]  |
| 专题 | 海洋环境－已发表论文 |
| 推荐引用方式 GB/T 7714 | Tong, F.,Tong F,Xu, X. M.,et al. Identification of highly oscillatory ultrasonic NDE echoes through evolutionary algorithm[J],2008. |
| APA | Tong, F.,童峰,Xu, X. M.,许肖梅,&Fang, S. L..(2008).Identification of highly oscillatory ultrasonic NDE echoes through evolutionary algorithm.. |
| MLA | Tong, F.,et al."Identification of highly oscillatory ultrasonic NDE echoes through evolutionary algorithm".(2008). |
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