On 2D localization of reflectors using robust beamforming techniques

Conference contribution
(Conference Contribution)


Publication Details

Author(s): Mabande E, Sun H, Kowalczyk K, Kellermann W
Publication year: 2011
Pages range: 153-156
ISBN: 9781457705397
ISSN: 2379-190X
Language: English


Abstract


This paper presents a method for the localization of reflectors in an acoustic environment, using robust beamforming techniques and a cylindrical microphone array, for which an intuitive and highly efficient three-step procedure is proposed. First, the directions of arrival (DOAs) corresponding to the sound source and reflectors are estimated by a robust Minimum Variance Distortionless Response (MVDR) beamformer. Next, signals originating from the estimated DOAs are extracted by a robust superdirective beamformer, from which time differences of arrival (TDOAs) of major reflections are estimated by crosscorrelation analysis. Finally, by using additional information about the position of the direct sound source relative to the array, the positions of the reflective boundaries of the room can be inferred. Experiments based on real measurements carried out in a moderately reverberant room show the effectiveness of this method. © 2011 IEEE.


FAU Authors / FAU Editors

Kellermann, Walter Prof. Dr.-Ing.
Professur für Nachrichtentechnik
Kowalczyk, Konrad Dr.
Professur für Nachrichtentechnik
Mabande, Edwin
Professur für Nachrichtentechnik


How to cite

APA:
Mabande, E., Sun, H., Kowalczyk, K., & Kellermann, W. (2011). On 2D localization of reflectors using robust beamforming techniques. In Proceedings of the 36th IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2011 (pp. 153-156). Prague, CZ.

MLA:
Mabande, Edwin, et al. "On 2D localization of reflectors using robust beamforming techniques." Proceedings of the 36th IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2011, Prague 2011. 153-156.

BibTeX: 

Last updated on 2019-28-04 at 17:38