Beamforming with a volumetric array of massless laser spark sources—Application in reflection tracking

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Beamforming with a volumetric array of massless laser spark sources—Application in reflection tracking. / Eskelinen, Joona; Delikaris-Manias, Symeon; Gómez Bolaños, Javier; Hæggström, Edward; Pulkki, Ville.

In: Journal of the Acoustical Society of America, Vol. 137, No. 6, 2015, p. EL389-EL395.

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Eskelinen, Joona ; Delikaris-Manias, Symeon ; Gómez Bolaños, Javier ; Hæggström, Edward ; Pulkki, Ville. / Beamforming with a volumetric array of massless laser spark sources—Application in reflection tracking. In: Journal of the Acoustical Society of America. 2015 ; Vol. 137, No. 6. pp. EL389-EL395.

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@article{f8bdd89fb3714d59aed1ee5f52ca650e,
title = "Beamforming with a volumetric array of massless laser spark sources—Application in reflection tracking",
abstract = "A volumetric array of laser-induced air breakdown sparks is used to produce a directional and steerable acoustic source. The laser breakdown array element is broadband, point-like, and massless. It produces an impulse-like waveform in midair, thus generating accurate spatio-temporal information for acoustic beamforming. A laser-spark scanning setup and the concept of a massless steerable source are presented and evaluated with a cubic array by using an off-line far field delay-and-sum beamforming method. This virtual acoustic array with minimal source influence can, for instance, produce narrow transmission beams to obtain localized and directional impulse response information by reflection tracking.",
author = "Joona Eskelinen and Symeon Delikaris-Manias and {G{\'o}mez Bola{\~n}os}, Javier and Edward H{\ae}ggstr{\"o}m and Ville Pulkki",
year = "2015",
doi = "10.1121/1.4920970",
language = "English",
volume = "137",
pages = "EL389--EL395",
journal = "Journal of the Acoustical Society of America",
issn = "0001-4966",
publisher = "ASA/CSSA/SSSA",
number = "6",

}

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TY - JOUR

T1 - Beamforming with a volumetric array of massless laser spark sources—Application in reflection tracking

AU - Eskelinen, Joona

AU - Delikaris-Manias, Symeon

AU - Gómez Bolaños, Javier

AU - Hæggström, Edward

AU - Pulkki, Ville

PY - 2015

Y1 - 2015

N2 - A volumetric array of laser-induced air breakdown sparks is used to produce a directional and steerable acoustic source. The laser breakdown array element is broadband, point-like, and massless. It produces an impulse-like waveform in midair, thus generating accurate spatio-temporal information for acoustic beamforming. A laser-spark scanning setup and the concept of a massless steerable source are presented and evaluated with a cubic array by using an off-line far field delay-and-sum beamforming method. This virtual acoustic array with minimal source influence can, for instance, produce narrow transmission beams to obtain localized and directional impulse response information by reflection tracking.

AB - A volumetric array of laser-induced air breakdown sparks is used to produce a directional and steerable acoustic source. The laser breakdown array element is broadband, point-like, and massless. It produces an impulse-like waveform in midair, thus generating accurate spatio-temporal information for acoustic beamforming. A laser-spark scanning setup and the concept of a massless steerable source are presented and evaluated with a cubic array by using an off-line far field delay-and-sum beamforming method. This virtual acoustic array with minimal source influence can, for instance, produce narrow transmission beams to obtain localized and directional impulse response information by reflection tracking.

U2 - 10.1121/1.4920970

DO - 10.1121/1.4920970

M3 - Article

VL - 137

SP - EL389-EL395

JO - Journal of the Acoustical Society of America

JF - Journal of the Acoustical Society of America

SN - 0001-4966

IS - 6

ER -

ID: 2008798