Using of a diverse field algorithm in ultrasonic signal processing for nondestructive testing

Issue		Eur. Phys. J. Appl. Phys. Volume 15, Number 1, July 2001


Page(s)		3 - 6
Section		Rapid Notes
DOI		10.1051/epjap:2001161

DOI: 10.1051/epjap:2001161

Eur. Phys. J. AP 15, 3-6

Using of a diverse field algorithm in ultrasonic signal processing for nondestructive testing

K.M. Mahmud, N. Baba and R. Ohba

Division of Applied Physics, Graduate School of Engineering, Hokkaido University, Sapporo 060-8628, Japan

mah@eng.hokudai.ac.jp
nbaba@eng.hokudai.ac.jp
rohba@eng.hokudai.ac.jp

(Received: 19 March 2001 / Revised: 4 May 2001 / Accepted: 5 May 2001)

Abstract
Detectability of close reflection peaks in ultrasonic NDT system has been significantly enhanced by using a diverse field algorithm. The CLEAN algorithm, which is popular in image processing of radio astronomy data, has been proposed in the case of ultrasonic testing. The feasibility study of the algorithm has been performed successfully in the application of ultrasonic signal processing and it is conceived that the algorithm might have good potential in ultrasonic NDT for distinguishing between close peaks and removing sidelobes.

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