Detail publikace

THE INFLUENCE OF A REALISTIC MICROPHONE ARRAY ON NEAR FIELD ACOUSTIC HOLOGRAPHY

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

GRATZ, P.

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"
}