Details
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the 23rd International Congress on Acoustics |
| Subtitle of host publication | Integrating 4th EAA Euroregio 2019 |
| Editors | Martin Ochmann, Vorlander Michael, Janina Fels |
| Place of Publication | Berlin |
| Pages | 8156-8163 |
| Number of pages | 8 |
| ISBN (electronic) | 9783939296157 |
| Publication status | Published - 2019 |
| Event | 23rd International Congress on Acoustics: Integrating 4th EAA Euroregio, ICA 2019 - Aachen, Germany Duration: 9 Sept 2019 → 13 Sept 2019 |
Publication series
| Name | Proceedings of the International Congress on Acoustics |
|---|---|
| Volume | 2019-September |
| ISSN (Print) | 2226-7808 |
| ISSN (electronic) | 2415-1599 |
Abstract
To identify objects in a 2D space the feasibility of a novel attempt is investigated in this study. The acoustic fields are simulated utilizing the 2D finite difference K-Wave toolbox in MATLAB. The generated acoustic field is recorded at defined positions that can be understood as receiver positions. From these data, the acoustic field is recalculated using the 2D-re-radiation-method. An object-free acoustic field serves as reference. The acoustic field (at the receiver) considering the object is determined. The full acoustic field is recalculated from the secondly recorded data. Using a difference-image-method, the calculated acoustic fields are processed and the position, size and geometric shape is identified from the remaining diffraction pattern. Different objects and object positions are studied. Furthermore, the influence of different excitation signals of the transducer for the identification are investigated.
Keywords
- Air coupled ultrasound, Object identification, Re-radiation
ASJC Scopus subject areas
- Engineering(all)
- Mechanical Engineering
- Physics and Astronomy(all)
- Acoustics and Ultrasonics
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Proceedings of the 23rd International Congress on Acoustics: Integrating 4th EAA Euroregio 2019. ed. / Martin Ochmann; Vorlander Michael; Janina Fels. Berlin, 2019. p. 8156-8163 (Proceedings of the International Congress on Acoustics; Vol. 2019-September).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Identifying objects in a 2D-space utilizing a novel combination of a re-radiation based method and of a difference-image-method
AU - Schmelt, Andreas Sebastian
AU - Marhenke, Torben
AU - Twiefel, Jens
PY - 2019
Y1 - 2019
N2 - To identify objects in a 2D space the feasibility of a novel attempt is investigated in this study. The acoustic fields are simulated utilizing the 2D finite difference K-Wave toolbox in MATLAB. The generated acoustic field is recorded at defined positions that can be understood as receiver positions. From these data, the acoustic field is recalculated using the 2D-re-radiation-method. An object-free acoustic field serves as reference. The acoustic field (at the receiver) considering the object is determined. The full acoustic field is recalculated from the secondly recorded data. Using a difference-image-method, the calculated acoustic fields are processed and the position, size and geometric shape is identified from the remaining diffraction pattern. Different objects and object positions are studied. Furthermore, the influence of different excitation signals of the transducer for the identification are investigated.
AB - To identify objects in a 2D space the feasibility of a novel attempt is investigated in this study. The acoustic fields are simulated utilizing the 2D finite difference K-Wave toolbox in MATLAB. The generated acoustic field is recorded at defined positions that can be understood as receiver positions. From these data, the acoustic field is recalculated using the 2D-re-radiation-method. An object-free acoustic field serves as reference. The acoustic field (at the receiver) considering the object is determined. The full acoustic field is recalculated from the secondly recorded data. Using a difference-image-method, the calculated acoustic fields are processed and the position, size and geometric shape is identified from the remaining diffraction pattern. Different objects and object positions are studied. Furthermore, the influence of different excitation signals of the transducer for the identification are investigated.
KW - Air coupled ultrasound
KW - Object identification
KW - Re-radiation
UR - http://www.scopus.com/inward/record.url?scp=85081569639&partnerID=8YFLogxK
U2 - 10.18154/RWTH-CONV-239280
DO - 10.18154/RWTH-CONV-239280
M3 - Conference contribution
AN - SCOPUS:85081569639
T3 - Proceedings of the International Congress on Acoustics
SP - 8156
EP - 8163
BT - Proceedings of the 23rd International Congress on Acoustics
A2 - Ochmann, Martin
A2 - Michael, Vorlander
A2 - Fels, Janina
CY - Berlin
T2 - 23rd International Congress on Acoustics: Integrating 4th EAA Euroregio, ICA 2019
Y2 - 9 September 2019 through 13 September 2019
ER -