Publication result detail

HOLOGRAPHY METHODS FOR NEAR FIELD VISUALISATION OF SOUND FIELDS

GRATZ, P.

Original Title

HOLOGRAPHY METHODS FOR NEAR FIELD VISUALISATION OF SOUND FIELDS

English Title

HOLOGRAPHY METHODS FOR NEAR FIELD VISUALISATION OF SOUND FIELDS

Type

Paper in proceedings (conference paper)

Original Abstract

This text deals with simulation, comparison and optimisation of different methods for near field array visualisation of the sound fields. These methods are based on principles of the Near Field Acoustical Holography (NAH). All simulations are realised in MATLAB environment. For the good comparison and optimisation of the methods, a realistic model of vibrating surface has been developed. The main interest is focused on the precision of the sound pressure field estimation, calculating time and sensitivity to the measurement errors for different NAH methods and algorithms. Realistic conditions are used for the simulations. The vibrating surface and its radiation is described at the first. The detailed description of different methods and their optimisation follows, and after this all presented methods are compared.

English abstract

This text deals with simulation, comparison and optimisation of different methods for near field array visualisation of the sound fields. These methods are based on principles of the Near Field Acoustical Holography (NAH). All simulations are realised in MATLAB environment. For the good comparison and optimisation of the methods, a realistic model of vibrating surface has been developed. The main interest is focused on the precision of the sound pressure field estimation, calculating time and sensitivity to the measurement errors for different NAH methods and algorithms. Realistic conditions are used for the simulations. The vibrating surface and its radiation is described at the first. The detailed description of different methods and their optimisation follows, and after this all presented methods are compared.

Key words in English

acoustical holography, microphone arrays

Authors

GRATZ, P.

Released

01.01.2002

Publisher

Univerzita Pardubice

Location

Pardubice

ISBN

80-7149-452-1

Book

Process Control 2002

Pages from

39

Pages count

1

BibTex

@inproceedings{BUT5473,
  author="Petr {Grätz}",
  title="HOLOGRAPHY METHODS FOR NEAR FIELD VISUALISATION OF SOUND FIELDS",
  booktitle="Process Control 2002",
  year="2002",
  pages="1",
  publisher="Univerzita Pardubice",
  address="Pardubice",
  isbn="80-7149-452-1"
}