Elaboration of some signal processing algorithms in ultrasonic techniques: application to materials NDT

被引：44

作者：

Drai, R ^{[1
]}

Sellidj, F ^{[1
]}

Khelil, M ^{[1
]}

Benchaala, A ^{[1
]}

机构：

[1] Ctr Rech Sci & Technique Soudage & Controle, Lab Traitement Signal & Image, Cheraga, Alger, Algeria

来源：

ULTRASONICS | 2000年 / 38卷 / 1-8期

关键词：

cross-correlation function; Hilbert transform; NDT; split spectrum techniques; ultrasonics;

D O I：

10.1016/S0041-624X(99)00082-7

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

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. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：503 / 507

页数：5