UNDERWATER ACOUSTIC-SIGNAL ANALYSIS WITH WAVELET PROCESS

被引：6

作者：

DAVID, PM ^{[1
]}

CHAPRON, B ^{[1
]}

机构：

[1] LUMINY UNIV SCI,INST MECH STAT & TURBULENCE,F-13009 MARSEILLE,FRANCE

来源：

JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA | 1990年 / 87卷 / 05期

关键词：

D O I：

10.1121/1.399179

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

A recently developed mathematical method (wavelet transform) of signal processing has provided potential new options for underwater signal study. It is a time-frequency mathematical process that analyzes high-frequency signals. Signal frequency instabilities are identified, calculated, and compared with the chosen wavelet. The mathematical process is applied to underwater acoustic signals received by sonar. It is shown how this mathematical process analyzes: (1) a pulse emitted by a source with part of the return signal; (2) a sonar signal that travels through important subsurface biological sea realms; and (3) an echo coming from a target [a CTD (conductivity, temperature, depth) Guildline] located at a depth of 800 m. © 1990, Acoustical Society of America. All rights reserved.

引用

页码：2118 / 2121

页数：4

共 8 条

[1]

[Anonymous], 1977, ACOUSTICAL OCEANOGRA

[2]

CHAPRON B, 1986, THESIS U LUMINY MARS

[3]

DAUBECHIES I, 1987, 8TH P INT C MATH PHY

[4] DECOMPOSITION OF HARDY FUNCTIONS INTO SQUARE INTEGRABLE WAVELETS OF CONSTANT SHAPE [J].

GROSSMANN, A ;

MORLET, J .

SIAM JOURNAL ON MATHEMATICAL ANALYSIS, 1984, 15 (04) :723-736

[5]

Meyer Y., 1986, ONDELETTES FONCTIONS

[6]

Meyer Y., 1985, OPERATEURS SEMINAIRE, V662, P1985

[7]

Papoulis A., 1986, SIGNAL ANAL

[8]

Urick R., 1983, PRINCIPLES UNDERWATE

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