Detail publikačního výsledku

Visualization of sound fields using Near-field acoustical holography

GRATZ, P.

Originální název

Visualization of sound fields using Near-field acoustical holography

Anglický název

Visualization of sound fields using Near-field acoustical holography

Druh

Článek recenzovaný mimo WoS a Scopus

Originální abstrakt

The goal of this text is to present results of simulation, comparison and optimization of various methods of visualizing sound fields on the basis of measurements with microphone arrays. The purpose of the work is to determine how a realistic microphone array disturbs the sound field and affects its performance in visualizing methods. The methods for visualizing of the sound fields are based on the principles of near field acoustical holography (NAH). A realistic model of a vibrating surface has been developed to test capabilities of NAH algorithms. The main interest is focused on the performance of the different NAH methods with respect to the precision of the estimated sound pressure fields and the sensitivity to errors and imperfections such as amplitude and phase mismatch and the position error of transducers.

Anglický abstrakt

The goal of this text is to present results of simulation, comparison and optimization of various methods of visualizing sound fields on the basis of measurements with microphone arrays. The purpose of the work is to determine how a realistic microphone array disturbs the sound field and affects its performance in visualizing methods. The methods for visualizing of the sound fields are based on the principles of near field acoustical holography (NAH). A realistic model of a vibrating surface has been developed to test capabilities of NAH algorithms. The main interest is focused on the performance of the different NAH methods with respect to the precision of the estimated sound pressure fields and the sensitivity to errors and imperfections such as amplitude and phase mismatch and the position error of transducers.

Klíčová slova v angličtině

near field acoustical holography, visualization of sound fields, microphone arrays

Autoři

GRATZ, P.

Rok RIV

2011

Vydáno

18.04.2003

ISSN

1213-161X

Periodikum

ElectronicsLetters.com - http://www.electronicsletters.com

Svazek

2003

Číslo

3/4

Stát

Česká republika

Strany od

12

Strany počet

4

BibTex

@article{BUT41016,
  author="Petr {Grätz}",
  title="Visualization of sound fields using Near-field acoustical holography",
  journal="ElectronicsLetters.com - http://www.electronicsletters.com",
  year="2003",
  volume="2003",
  number="3/4",
  pages="4",
  issn="1213-161X"
}