pereselkov, sergey kuz’kin, venedikt ehrhardt, matthias matvienko, yurii tkachenko, sergey rybyanets, pavel
The holographic signal-processing method for a single vector scalar receiver (VSR) in the high-frequency band in shallow water is developed in the paper. The aim of this paper is to present the results of the theoretical analysis, numerical modeling, and experimental verification of holographic signal processing for a noise source by the VSR. The d...
Katzberg, Fabrice Maass, Marco Mertins, Alfred
Published in
Frontiers in Signal Processing
Moving microphones allow for the fast acquisition of sound-field data that encode acoustic impulse responses in time-invariant environments. Corresponding decoding algorithms use the knowledge of instantaneous microphone positions for relating the dynamic samples to a positional context and solving the involved spatio-temporal channel estimation pr...
zhuk, oleksandr p. zhuk, yaroslav klimchuk, taras
A system of initially immobile spherical liquid drops placed in another liquid in the field of a propagating acoustic wave is considered. The acoustic radiation force acting on each spherical liquid drop is determined as the function of the incident wave frequency, making use of the solution of a problem of plane harmonic wave scattering on a syste...
Reinhardt, Nina Schmitz, Christoph Milz, Stefan de la Fuente, Matías
Published in
Biomedical Engineering / Biomedizinische Technik
Objectives Focused ultrasound is mainly known for focal ablation and localized hyperthermia of tissue. During the last decade new treatment options were developed for neurological indications based on blood-brain-barrier opening or neuromodulation. Recently, the transcranial application of shock waves has been a subject of research. However, the me...
jia, jianbo shi, yan meng, xianyu zhang, bo dameng, li
This study considers the practical issue of severe noise observed in a multi-stage sleeve control valve within an engineering project. Employing computational fluid dynamics (CFD) methodology, we initially performed numerical simulations to analyze the steady-state flow field within the control valve. Subsequently, we identified the underlying fact...
zhu, hanhao cui, zhiqiang liu, jia jiang, shenghui liu, xu wang, jiahui
In response to the drawbacks of low efficiency, cumbersome calculation, and easy-to-fall local optimal solutions in existing shallow water acoustic parameters inversion research, this paper proposes a shallow water acoustic parameters inversion method based on a feedback (BP) neural network model. Firstly, the theoretically predicted values of the ...
kompis, martin langmair, manfred mantokoudis, georgios weder, stefan gawliczek, tom caversaccio, marco domenico
Background: With the advent of cochlear implants, tactile aids for the profoundly deaf became obsolete decades ago. Nevertheless, they might still be useful in rare cases. We report the case of a 25-year-old woman with Bosley–Salih–Alorainy Syndrome and bilateral cochlear aplasia. Methods: After it was determined that cochlear or brainstem implants...
Deryabin, Igor
Published in
E3S Web of Conferences
The engine of a vehicle, particularly a passenger car, is one of the main sources of noise radiated into the environment and creates a noise load in residential areas, which has a negative impact on people. Experts in the field of acoustics perform computational and experimental acoustic studies both at the design stage, and at the stage of putting...
pereselkov, sergey kuz’kin, venedikt ehrhardt, matthias tkachenko, sergey rybyanets, pavel ladykin, nikolay
The possibility of controlling localized fields in multimode shallow water waveguides based on the principle of interference invariance was studied. Within the framework of the numerical experiments in a wide frequency range of 100–350 Hz and range intervals of 10–100 km, the possibilities of focusing the sound field by wavefront reversal and contr...
Sprunck, Tom Privat, Yannick Foy, Cédric Deleforge, Antoine
Given a sound field generated by a sparse distribution of impulse image sources, can the continuous 3D positions and amplitudes of these sources be recovered from discrete, bandlimited measurements of the field at a finite set of locations, e.g., a multichannel room impulse response? Borrowing from recent advances in super-resolution imaging, it is...
