Výsledky vyhledávání - "Maciej Lopatka"

Akademický článek

Underwater Broadband Source Localization Based on Modal Filtering and Features Extraction

Autor: Dominique Fattaccioli, Jérôme I. Mars, Xavier Cristol, Barbara Nicolas, Grégoire Le Touzé, Maciej Lopatka

Publikováno v: EURASIP Journal on Advances in Signal Processing, Vol 2010 (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/7863525a5d274105ae5d1dc75ae29be3

Zobrazit plný text záznamu

Consistent retrieval of land surface radiation products from EO, including traceable uncertainty estimates

Autor: Bernard Pinty, Nadine Gobron, Maciej Lopatka, Michael Voßbeck, Monica Robustelli, Thomas Kaminski

Publikováno v: Biogeosciences, Vol 14, Iss 9, Pp 2527-2541 (2017)

Earth observation (EO) land surface products have been demonstrated to provide a constraint on the terrestrial carbon cycle that is complementary to the record of atmospheric carbon dioxide. We present the Joint Research Centre Two-stream Inversion P

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7366372c5b219608d496edc8963472bd
http://www.biogeosciences.net/14/2527/2017/bg-14-2527-2017.pdf

Zobrazit plný text záznamu

Consistent EO Land Surface Products including Uncertainty Estimates

Autor: Bernard Pinty, Monica Robustelli, Maciej Lopatka, Nadine Gobron, Michael Voßbeck, Thomas Kaminski

Earth Observation (EO) land products have been demonstrated to provide a constraint on the terrestrial carbon cycle that is complementary to the record of atmospheric carbon dioxide. We present the Joint Research Centre Two-stream Inversion Package (

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a651f5a02d48a3ee2477f0eb661f489d
https://doi.org/10.5194/bg-2016-310

Zobrazit plný text záznamu

Sperm whale click analysis using a recursive time-variant lattice filter

Autor: Maciej Lopatka, Christophe Laplanche, Jan Zarzycki, Olivier Adam, Jean-François Motsch

Publikováno v: Applied Acoustics. 67:1118-1133

Sperm whale clicks, which are nonstationary broadband transients, are analyzed using the normalized recursive exact least-square time-variant lattice filter. The results are compared with those obtained using the classical techniques of energy detect

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2b8dd802cdfdf6f937485e40745e96e0
https://doi.org/10.1016/j.apacoust.2006.05.011

Zobrazit plný text záznamu

Underwater Broadband Source Localization Based on Modal Filtering and Features Extraction

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

Publikováno v: EURASIP Journal on Advances in Signal Processing
EURASIP Journal on Advances in Signal Processing, SpringerOpen, 2010, 2010, pp.article ID 304103. ⟨10.1155/2010/304103⟩
EURASIP Journal on Advances in Signal Processing, Vol 2010, Iss 1, p 304103 (2010)
EURASIP Journal on Advances in Signal Processing, Vol 2010 (2010)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3ed48e5621282918479b25a0f8c1f9c0
https://hal.archives-ouvertes.fr/hal-00557090

Zobrazit plný text záznamu

Sperm Whale Signal Analysis: Comparison Using The Auto Regressive Model And The Daubechies 15 Wavelets Transform

Autor: Olivier Adam, Maciej Lopatka, Christophe Laplanche, Jean-François Motsch

This article presents the results using a parametric approach and a Wavelet Transform in analysing signals emitting from the sperm whale. The extraction of intrinsic characteristics of these unique signals emitted by marine mammals is still at presen

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::71fffd9c2b7e0cb818a4186571b5c5ed

Zobrazit plný text záznamu

Measuring the off-axis angle and the rotational movements of phonating sperm whales using a single hydrophone

Autor: Maciej Lopatka, Olivier Adam, Jean-François Motsch, Christophe Laplanche

Publikováno v: Journal of the Acoustical Society of America
Journal of the Acoustical Society of America, Acoustical Society of America, 2006, Vol. 119, pp. 4074-4082. ⟨10.1121/1.2184987⟩
Journal of the Acoustical Society of America, Acoustical Society of America, 2006, 119, pp.4074-4082

International audience; The common use of the bent-horn model of the sperm whale sound generator describes sperm whale clicks as the pulse series {p0, p1, p2, p3, . . . }. Clicks, however, deviate from this standard when recorded using off-axis hydro

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5a7f98f5d5c9b882083129c863d4bfae
https://hal.archives-ouvertes.fr/hal-00797701/file/Laplanche_5606.pdf

Zobrazit plný text záznamu

Male sperm whale acoustic behavior observed from multipaths at a single hydrophone

Autor: Maciej Lopatka, Christophe Laplanche, Jean-François Motsch, Olivier Adam

Publikováno v: Journal of the Acoustical Society of America
Journal of the Acoustical Society of America, Acoustical Society of America, 2005, Vol. 118, pp. 2677-2687. ⟨10.1121/1.2033567⟩

International audience; Sperm whales generate transient sounds (clicks) when foraging. These clicks have been described as echolocation sounds, a result of having measured the source level and the directionality of these signals and having extrapolat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b1b4bf1fa91f080be9af4da5e9b2e61d
https://oatao.univ-toulouse.fr/5605/

Zobrazit plný text záznamu

New effective analytic representation based on the time-varying Schur coefficients for underwater signals analysis

Autor: Christophe Laplanche, Olivier Adam, Maciej Lopatka, Jean-François Motsch, J. Zarzycki

Publikováno v: Europe Oceans 2005.

The paper proposes a new effective analytic signal representation dedicated to underwater signal analysis. The proposed approach is based on the recursive normalized exact least-square ladder estimation algorithm because of its excellent convergence

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6be5785356c37063aa69deb4819fca1d
https://doi.org/10.1109/oceanse.2005.1511702

Zobrazit plný text záznamu

Non-Stationary Time-Series Segmentation Based on the Schur Prediction Error Analysis

Autor: Jean-François Motsch, J. Zarzycki, Christophe Laplanche, Maciej Lopatka, Olivier Adam

Publikováno v: IEEE/SP 13th Workshop on Statistical Signal Processing, 2005.

This paper proposes a non-stationary time-series segmentation method based on the analysis of the forward prediction error issued from the adaptive Schur orthogonal signal parameterisation. There is no a priori information about the analysed signal t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4ed4bf742047434e3470be24d07c393f
https://doi.org/10.1109/ssp.2005.1628601

Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání