Výsledky vyhledávání - "Le Touzé Grégoire"

Akademický článek

Underwater Broadband Source Localization Based on Modal Filtering and Features Extraction

Autor: Cristol Xavier, Fattaccioli Dominique, Lopatka Maciej, Le Touzé Grégoire, Nicolas Barbara, Mars JérômeI

Publikováno v: EURASIP Journal on Advances in Signal Processing, Vol 2010, Iss 1, p 304103 (2010)

Passive source localization is a crucial issue in underwater acoustics. In this paper, we focus on shallow water environment (0 to 400 m) and broadband Ultra-Low Frequency acoustic sources (1 to 100 Hz). In this configuration and at a long range, the

Externí odkaz: https://doaj.org/article/1f0ca3323bf242afb573f8fc5047ab62

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MATCHED TIME-FREQUENCY REPRESENTATIONS AND WARPING OPERATOR FOR MODAL FILTERING

Autor: Le Touzé, Grégoire, Mars, Jerome, Lacoume, Jean-Louis

Publikováno v: Eusipco2006 Proceedings
EUSIPCO
EUSIPCO, 2006, Florence, Italy. pp.0

International audience; In waveguide, pressure signals break up into modes. This paper exposes two signal processing tools to realise a mode filtering adapted to guided waves. The first one is a timefrequency representation invertible on which filter

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1a967ec2c00f2e726f563485d51cbd1b
https://hal.archives-ouvertes.fr/hal-00275437

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Représentations Temps-Fréquence de la classe de puissance basées sur l'invariant océanique

Autor: Bonnel, Julien, Le Touzé, Grégoire, Nicolas, Barbara, Mars, Jerome

Publikováno v: 2013-GRETSI-Actes de Colloque
GRETSI 2013-XXIVème Colloque francophone de traitement du signal et des images
GRETSI 2013-XXIVème Colloque francophone de traitement du signal et des images, Sep 2013, Brest, France. pp.ID226

National audience; En acoustique sous marine Ultra Basse Fréquence (UBF < 200 Hz), un environnement océanique petit fond (D < 200 m) se comporte comme un guide d'onde dispersif, dans lequel de nombreuses applications (inversion géoacoustique, loca

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::c80a06b4fc685b769cd0ebe2baa17e00
https://hal.archives-ouvertes.fr/hal-00877121/document

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Waveguide invariant-based spectrogram for modal dispersion analysis with perspective for low-frequency geoacoustic inversion at short-range

Autor: Bonnel, Julien, Nicolas, Barbara, Le Touzé, Grégoire, Mars, Jerome

Publikováno v: UA 3013-1st International Conference and Exhibition on Underwater Acoustics
UA 3013-1st International Conference and Exhibition on Underwater Acoustics, Jun 2013, Corfou, Greece

International audience

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::3d3ecafbaccb07dc69dd2e176e67c786
https://hal.archives-ouvertes.fr/hal-00935400

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Observable variation estimation with 3d high-resolution methods on tank experiment for acoustic tomography

Autor: Le Touzé, Grégoire, Nicolas, Barbara, Mars, Jerome, Roux, Philippe

Publikováno v: Proceedings of ECUA 2013
ECUA 2012-11th European Conference on Underwater Acoustics
ECUA 2012-11th European Conference on Underwater Acoustics, Jul 2012, Édimbourg, United Kingdom. pp.n/c

International audience

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::28ea4e8bd246896debc80fcab3200fe4
https://hal.archives-ouvertes.fr/hal-00935409

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Double-Capon and Double-MUSICAL for arrival separation in an acoustic waveguide

Autor: Le Touzé, Grégoire, Nicolas, Barbara, Mars, Jerome, Roux, Philippe, Oudompheng, Benoit

Publikováno v: EURASIP Journal on Advances in Signal Processing
EURASIP Journal on Advances in Signal Processing, SpringerOpen, 2012, 2012, pp.187. ⟨10.1186/1687-6180-2012-187⟩
EURASIP Journal on Advances in Signal Processing, 2012, 2012, pp.187. ⟨10.1186/1687-6180-2012-187⟩

International audience; Recent developments in shallow water Ocean Acoustic Tomography (OAT) propose the use of an original configuration composed of two source-receive vertical arrays and wideband sources. The recording space has thus 3 dimensions (

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::9139c1c7f7b932d81aac124a5e19fab5
https://hal.archives-ouvertes.fr/hal-00797704/file/LE_TOUZE_EURASIP_2012.pdf

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Double multiple signal characterization active large band (D-MUSICAL) for extrac- tion of observable in acoustic tomography

Autor: Le Touzé, Grégoire, Nicolas, Barbara, Roux, Philippe, Mars, Jerome

Publikováno v: Acoustics 2011-162nd Meeting of The Acoustical Society of America
Acoustics 2011-162nd Meeting of The Acoustical Society of America, Oct 2011, San Diego, California, United States

International audience

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::b89b00248eddf9e87b11717204b93775
https://hal.archives-ouvertes.fr/hal-00679858

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Double multiple signal characterization active large band (d-musical) for extraction of observable in acoustic tomography

Autor: Mars Jérôme, Roux Philippe, Le Touzé Grégoire, Nicolas Barbara

Publikováno v: Acoustics 2011-162nd Meeting of The Acoustical Society of America
Acoustics 2011-162nd Meeting of The Acoustical Society of America, Oct 2011, San Diego, Californie, United States

In the ocean, the acoustic propagation is characterized by different arrivals. Each arrival is characterized by its observables: amplitude, arrival time, emission, and reception angles. To achieve ocean acoustic tomography, a method to separate arriv

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::07b070d29db9c4d2b585b7648e859219
https://hal.archives-ouvertes.fr/hal-00935415

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Double MUSIC Actif Large bande pour la tomographie sous-marine

Autor: Le Touzé, Grégoire, Nicolas, Barbara, Mars, Jerome

Publikováno v: 2011-GRETSI-Actes de Colloque
GRETSI 2011-XXIIIème Colloque francophone de traitement du signal et des images
GRETSI 2011-XXIIIème Colloque francophone de traitement du signal et des images, Sep 2011, Bordeaux, France. pp.ID215

National audience; Nous proposons une méthode de traitement d'antenne haute résolution de type MUSIC à trois dimensions appelée Double MUSICAL. Cette méthode permet l'estimation des paramètres des ondes propagées dans un milieu océanique : te

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::ca73d9fb4b0e98dcc38ab223eb5a6617
https://hal.archives-ouvertes.fr/hal-00625550/file/Le_Touze_GRETSI.pdf

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