Results 51 to 60 of about 9,073,273 (199)

Full Field Inversion in Photoacoustic Tomography with Variable Sound Speed

Applied Sciences, 2019
To accelerate photoacoustic data acquisition, in [R. Nuster, G. Zangerl, M. Haltmeier, G. Paltauf (2010). Full field detection in photoacoustic tomography.
Gerhard Zangerl, Markus Haltmeier, Linh V. Nguyen, Robert Nuster   +3 more
doaj   +1 more source

Optimal sensor placement for the spatial reconstruction of sound fields

EURASIP Journal on Audio, Speech, and Music Processing
Abstract The estimation sound fields over space is of interest in sound field control and analysis, spatial audio, room acoustics and virtual reality. Sound fields can be estimated from a number of measurements distributed over space yet this remains a challenging problem due to the large experimental effort required. In this work we investigate sensor
Verburg, Samuel A., Elvander, Filip, van Waterschoot, Toon, Fernandez-Grande, Efren   +3 more
openaire   +6 more sources

Sound field reconstruction using a spherical microphone array [PDF]

The Journal of the Acoustical Society of America, 2016
A method is presented that makes it possible to reconstruct an arbitrary sound field based on measurements with a spherical microphone array. The proposed method (spherical equivalent source method) makes use of a point source expansion to describe the sound field on the rigid spherical array, from which it is possible to reconstruct the sound field ...
openaire   +2 more sources

Sound Field Measurements Based on Reconstruction from Laser Projections

Proceedings. (ICASSP '05). IEEE International Conference on Acoustics, Speech, and Signal Processing, 2005., 2006
In this paper, we describe some new sound field measurement methods by using a laser Doppler vibrometer (LDV). By irradiating the reflection wall with a laser, we can observe the light velocity change that is caused by the refractive index change from the change in air density.
Yasuhiro Oikawa, Makoto Goto, Yusuke Ikeda, Toshikazu Takizawa, Yoshio Yamasaki   +4 more
openaire   +1 more source

Numerical research on the focusing characteristics of steady state sound field in finite space by combining finite element and phase conjugation methods

Journal of Low Frequency Noise, Vibration and Active Control
The research on sound source identification in an infinite free sound field has been relatively in-depth, but there is relatively little research on sound source identification and localization in limited spaces, especially those with sound absorption ...
Song Liu, Yifan Du, Yanlin Wang, Panpan Liu, Fang Wu, Peng Gao, Hebin Song   +6 more
doaj   +1 more source

Influence of Intense Internal Waves Traveling Along an Acoustic Path on Source Holographic Reconstruction in Shallow Water

Journal of Marine Science and Engineering
This paper studies how intense internal waves (IIWs) affect the holographic reconstruction of the sound field generated by a moving source in a shallow-water environment.
Sergey Pereselkov, Venedikt Kuz’kin, Matthias Ehrhardt, Sergey Tkachenko, Alexey Pereselkov, Nikolay Ladykin   +5 more
doaj   +1 more source

Sound field measurements based on reconstruction from laser projections

, 2020
In this paper, we describe some new sound field measurement methods by using laser Doppler vibrometer (LDV). By Irradiating the reflection wall with a laser, we can observe the light velocity change that is caused by the refractive index change from the ...
Yasuhiro Oikawa, Yusuke Ikeda, Yoshio Yamasaki, Makoto Goto, Toshikazu Takizawa   +4 more
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Associated Students of the University of Puget Sound (ASUPS) Senate Minutes 2020-2021 [PDF]

, 2020
Meeting minutes of the Associated Students of the University of Puget Sound from 09/2020 - 05/2021.
Associated Students of the University of Puget Sound (ASUPS)
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The Inverse Scattering of Three-Dimensional Inhomogeneous Steady-State Sound Field Models

Mathematics
We propose a U-Net regression network model for sliced data to reconstruct a three-dimensional irregular steady-state sound field filling inhomogeneous anisotropic media.
Zhaoxi Sun, Wenbin Zhang, Meiling Zhao
doaj   +1 more source

Associated Students of the University of Puget Sound Senate Minutes 1991-1992 [PDF]

, 1991
Meeting minutes of the Associated Students of the University of Puget Sound from 09/1991 - 04/1992.
Associated Students of the University of Puget Sound,
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