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Passive stochastic matched filter for Antarctic blue whale call detection

hal.structure.identifierInstitut de Recherche de l'Ecole Navale [IRENAV]
dc.contributor.authorBOUFFAUT, Léa
hal.structure.identifierInstitut de Recherche de l'Ecole Navale [IRENAV]
dc.contributor.authorDRÉO, Richard
hal.structure.identifierInstitut de Recherche de l'Ecole Navale [IRENAV]
dc.contributor.authorLABAT, Valerie
hal.structure.identifierInstitut de Recherche de l'Ecole Navale [IRENAV]
dc.contributor.authorBOUDRAA, Abdel-O.
hal.structure.identifierInstitut de Physique du Globe de Paris [IPGP]
dc.contributor.authorBARRUOL, Guilhem
dc.date.accessioned2021-05-14T09:46:26Z
dc.date.available2021-05-14T09:46:26Z
dc.date.created2018
dc.date.issued2018-08
dc.identifier.issn0001-4966
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/77006
dc.description.abstractEnAs a first step to Antarctic blue whale (ABW) monitoring using passive acoustics, a method based on the stochastic matched filter (SMF) is proposed. Derived from the matched filter (MF), this filter-based denoising method enhances stochastic signals embedded in an additive colored noise by maximizing its output signal to noise ratio (SNR). These assumptions are well adapted to the passive detection of ABW calls where emitted signals are modified by the unknown impulse response of the propagation channel. A filter bank is computed and stored offline based on a priori knowledge of the signal second order statistics and simulated colored sea-noise. Then, the detection relies on online background noise and SNR estimation, realized using time-frequency analysis. The SMF output is cross-correlated with the signal's reference (SMF þ MF). Its performances are assessed on an ccean bottom seismometer-recorded ground truth dataset of 845 ABW calls, where the location of the whale is known. This dataset provides great SNR variations in diverse soundscapes. The SMF þ MF performances are compared to the commonly used MF and to the Z-detector (a sub-space detector for ABW calls). Mostly, the benefits of the use of the SMF þ MF are revealed on low signal to noise observations: in comparison to the MF with identical detection threshold, the false alarm rate drastically decreases while the detection rate stays high. Compared to the Z-detector, it allows the extension of the detection range of ' 30 km in presence of ship noise with equivalent false discovery rate.
dc.description.sponsorshipImagerie mantellique du point chaud de La Réunion - ANR-11-BS56-0013
dc.language.isoen
dc.publisherAcoustical Society of America
dc.title.enPassive stochastic matched filter for Antarctic blue whale call detection
dc.typeArticle de revue
dc.identifier.doi10.1121/1.5050520
dc.subject.halPlanète et Univers [physics]/Sciences de la Terre/Géophysique [physics.geo-ph]
bordeaux.journalJournal of the Acoustical Society of America
bordeaux.page955 - 965
bordeaux.volume144
bordeaux.hal.laboratoriesInstitut de Mécanique et d’Ingénierie de Bordeaux (I2M) - UMR 5295*
bordeaux.issue2
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionBordeaux INP
bordeaux.institutionCNRS
bordeaux.institutionINRAE
bordeaux.institutionArts et Métiers
bordeaux.peerReviewedoui
hal.identifierhal-01867897
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01867897v1
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