Elaboration of some signal processing algorithms in ultrasonic techniques: application to materials NDT
In ultrasonic techniques, information on defect characterization possibilities has required more evolved technique development than classical methods. To obtain a high probability of defect detection, these methods use signal-processing algorithms in order to enhance the signal-to-noise ratio. These methods are also used to discriminate between planar and volumetric defects. In this paper, some signal-processing algorithms are developed and implemented on a computer to allow their utilization in real-time processing of ultrasonics NDT results.
Drai
R
Centre de Recherche Scientifique et Technique en Soudage et Controle (CSC), Laboratoire de Traitement du Signal et de l'Image, Cheraga, Alger, Algeria. redouane_drai@hotmail.com
Sellidj
F
Khelil
M
Benchaala
A