Two-dimensional eddy current signal enhancement via multifrequency data fusion

被引：15

作者：

Liu, Z ^{[1
]}

Tsukada, K ^{[1
]}

Hanasaki, K ^{[1
]}

Kurisu, M ^{[1
]}

机构：

[1] Kyoto Univ, Grad Sch Engn, Dept Earth Resources, NDT & E Lab,Sakyo Ku, Kyoto 6068501, Japan

来源：

RESEARCH IN NONDESTRUCTIVE EVALUATION | 1999年 / 11卷 / 03期

关键词：

D O I：

10.1007/PL00003919

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Eddy current testing is one of the most popular nondestructive testing methods; a multifrequency testing is often applied to cancel the unwanted signals to improve the signal-to-noise ratio. This is usually accomplished by combining the results obtained at different frequencies in the spatial domain. In this paper a fusion strategy to integrate two-dimensional, multifrequency signals is introduced, which is based on the multiresolution analysis method. A signal-to-noise ratio criteria is adopted to evaluate the fusion results. Finally, the effectiveness of the pyramid method is discussed.

引用

页码：165 / 177

页数：13

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