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Ultrasonic imaging using spatio-temporal matched field (STMF) processing-applications to liquid and solid waveguides

机译:使用时空匹配场(STMF)处理的超声成像-在液体和固体波导中的应用

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摘要

This paper is devoted to imaging defects in liquid and solid ultrasonic waveguides. A new ultrasonic imaging technique, based on the spatio-temporal Green functions computation and cross-correlation, is presented. This technique extends the concept of matched field processing (MFP) used in ocean acoustics. Results of experiments conducted in water and in a solid Duralumin bar show that a strong improvement of the spatial resolution is observed with this MFP.
机译:本文致力于成像液体和固体超声波导中的缺陷。提出了一种基于时空格林函数计算和互相关的超声成像新技术。该技术扩展了海洋声学中使用的匹配场处理(MFP)的概念。在水中和硬金属硬铝条中进行的实验结果表明,使用该MFP可以观察到空间分辨率的极大提高。

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