A new effective method for removing measurement noise in eddy current nondestructive inspection

Issue title: Selected Papers from the 14th International Symposium on Applied Electromagnetics and Mechanics (ISEM 2009), Part II

Article type: Research Article

Authors: Sun, Xiao-Yun^{a; *} | Liu, Dong-Hui^a | Sheng, Jian-Ni^b

Affiliations: [a] Hebei University of Science & Technology, Shijiazhuang, China | [b] Xi'an Jiaotong University, Xi'an, China

Correspondence: [*] Corresponding author. Tel.: +86 311 81668725; Fax: +86 311 81668725; E-mail: sunxy@hebust.edu.cn

Abstract: For tube detection, an effective denoise method based on Hilbert-Huang Transform (HHT) is presented. At first, by using an empirical mode decomposition algorithm, a sum of Intrinsic Mode Functions (IMF) are obtained; then, the IMF coefficients in useful signal dominative layer are proceeded using soft threshold method; at last, those IMF coefficients are reconstructed. Compared with the traditional wavelet Transform, the HHT method is better to remove measurement noise.

Keywords: Denoise method, Hilbert-Huang Transform, empirical mode decomposition

DOI: 10.3233/JAE-2010-1235

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 33, no. 3-4, pp. 1173-1177, 2010