RETRACTED: Matching pursuit-based approach for ultrasonic flaw detection

This article has been retracted at the request of the Editor-in-Chief and Publisher. Please see http://www.elsevier.com/locate/withdrawalpolicy.Reason: This article is virtually identical to the previously published article:“New matching pursuit-based algorithm for SNR improvement in ultrasonic NDT”, Independent Nondestructive Testing and Evaluation International, volume 38 (2005) 453–458 authored by N. Ruiz-Reyes, P. Vera-Candeas, J. Curpián-Alonso, R. Mata-Campos and J.C. Cuevas-Martínez.