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GRATZ, P.
Originální název
THE INFLUENCE OF A REALISTIC MICROPHONE ARRAY ON NEAR FIELD ACOUSTIC HOLOGRAPHY
Typ
článek ve sborníku ve WoS nebo Scopus
Jazyk
angličtina
Originální abstrakt
Various methods of visualising sound fields on the basis of measurements with microphone arrays have been examined. The methods are based on the principles of near field acoustic holography (NAH) and include STSF (Spatial Transform of Sound Fields), STSF NAH with Wiener filter, Iterative STSF NAH, and SONAH (Statistically Optimal NAH). A realistic model of a vibrating surface has been developed in order to examine the performance of the different NAH methods with respect to the precision of the estimated sound pressure fields, the calculation time, and the sensitivity to microphone errors and imperfections such as amplitude and phase mismatch. The influence of a realistic microphone array that disturbs the sound field is also investigated using a three-dimensional boundary element model of the array.
Klíčová slova v angličtině
sound field, microphone arrays
Autoři
Vydáno
8. 7. 2002
Nakladatel
NASA
Místo
Orlando, Florida, USA
Strany od
20
Strany do
25
Strany počet
6
BibTex
@inproceedings{BUT5477, author="Petr {Grätz}", title="THE INFLUENCE OF A REALISTIC MICROPHONE ARRAY ON NEAR FIELD ACOUSTIC HOLOGRAPHY", booktitle="Ninth International Congress on Sound anv Vibration", year="2002", pages="6", publisher="NASA", address="Orlando, Florida, USA" }