Tomographic mapping of airborne sound fields by TV-holography
| Autor: | Klaus D. Hinsch, Holger Joost, Gerd Gülker |
|---|---|
| Rok vydání: | 2006 |
| Předmět: |
3D optical data storage
geography geography.geographical_feature_category Computer science Acoustics ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION Phase (waves) Measure (physics) Holography Parametric array law.invention Nonlinear system Computer Science::Sound law Sound pressure Sound (geography) |
| Zdroj: | Fringe 2005 ISBN: 3540260374 |
| DOI: | 10.1007/3-540-29303-5_87 |
| Popis: | Tomographic ESPI is a powerful technique for the non-intrusive mapping of a 3D sound field. It has been shown that sophisticated processing of the measurement data from a state-of-the-art ESPI instrument in time-average mode allows to measure the spatial distribution of sound pressure and phase in airborne ultrasound fields. The optical data have been used as input for an acoustic optimization of a parametric array for the nonlinear generation of audio sound that could not have been achieved otherwise. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|