Usefulness of Time-frequency Treatment to an Acoustic Signal

被引：0

作者：

Elhanaoui, Abdelkader ^{[1
]}

Aassif, El Houcein ^{[2
]}

Maze, Gerard ^{[3
]}

Decultot, Dominique ^{[3
]}

机构：

[1] Mly Ismail Univ, Sci & Tech Fac, ESIM, Errachidia 52000, Morocco

[2] Ibn Zohr Univ, Fac Sci, LMTI, BP 8106, Agadir 80000, Morocco

[3] Le Havre Univ, Normandie Univ, LOMC, UMR CNRS 6294, 75 Rue Bellot, Le Havre, France

来源：

2017 3RD INTERNATIONAL CONFERENCE ON ADVANCED TECHNOLOGIES FOR SIGNAL AND IMAGE PROCESSING (ATSIP) | 2017年

关键词：

time-frequency; signal processing; acoustics;

D O I：

暂无

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

In this document, smoothed pseudo Wigner-Ville (SPWD) and reassigned spectrogram (RSPD) time-frequency distributions were developed and used to analyze an acoustic signal scattered from an thin cylindrical metallic tube immersed in water. In the work, the studied tube is made of two parts. The obtained results suggest that the time-frequency methods are suitable to find various resonances of circumferential waves that are propagated around the shell, and give better concordance with the theoretical results.

引用

页码：82 / 86

页数：5

共 8 条

[1] TIME FREQUENCY-DISTRIBUTIONS - A REVIEW [J].

COHEN, L .

PROCEEDINGS OF THE IEEE, 1989, 77 (07) :941-981

[2] Acoustic characterization and prediction of the cut-off dimensionless frequency of an elastic tube by neural networks [J].

Dariouchy, Abdelilah ;

Aassif, El Houcein ;

Decultot, Dominique ;

Maze, Gerard .

IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL, 2007, 54 (05) :1055-1064

[3] Acoustic scattering by a two-layer cylindrical tube immersed in a fluid medium: Existence of a pseudo wave [J].

Elhanaoui, Abdelkader ;

Aassif, Elhoucein ;

Maze, Gerard ;

Decultot, Dominique .

ULTRASONICS, 2016, 65 :131-136

[4]

Flandrin P., 1998, TEMPS FREQUENCE

[5]

Flandrin R, 2003, EL EN AP SI, P179

[6] Study of circumferential waves and their interaction with defects on cylindrical shells using line-source laser ultrasonics [J].

Gao, WM ;

Glorieux, C ;

Thoen, J .

JOURNAL OF APPLIED PHYSICS, 2002, 91 (09) :6114-6119

[7] Linear and quadratic time-frequency signal representations [J].

Hlawatsch, F. ;

Boudreaux-Bartels, G. F. .

IEEE SIGNAL PROCESSING MAGAZINE, 1992, 9 (02) :21-67

[8] ACOUSTIC SCATTERING FROM SUBMERGED CYLINDERS - MIIR IM/RE - EXPERIMENTAL AND THEORETICAL-STUDY [J].

MAZE, G .

JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, 1991, 89 (06) :2559-2566

← 1 →