Exploiting microphone array symmetry for robust two-dimensional polynomial beamforming

Conference contribution
(Conference Contribution)


Publication Details

Author(s): Barfuß H, Bachmann M, Hümmer C, Kellermann W
Publication year: 2018
Pages range: 486-490
Language: English


Abstract

Polynomial beamforming is an effective approach for flexible beam steering of a data-independent beamformer. To this end, the beamformer is designed for a finite set of predefined Prototype Look Directions (PLDs) and its main beam is steered by polynomial interpolation between those PLDs. In this work, the complexity of a recently proposed two-dimensional robust polynomial beamformer is significantly decreased by exploiting symmetry planes of the microphone array to reduce the number of PLDs used for the beamformer design. This concept is experimentally verified for a planar uniform circular microphone array by means of signal-independent measures.


FAU Authors / FAU Editors

Bachmann, Markus
Barfuß, Hendrik
Lehrstuhl für Multimediakommunikation und Signalverarbeitung
Professur für Nachrichtentechnik
Hümmer, Christian
Professur für Nachrichtentechnik
Kellermann, Walter Prof. Dr.-Ing.
Professur für Nachrichtentechnik


How to cite

APA:
Barfuß, H., Bachmann, M., Hümmer, C., & Kellermann, W. (2018). Exploiting microphone array symmetry for robust two-dimensional polynomial beamforming. In Proceedings of the International Workshop on Acoustic Signal Enhancement (IWAENC) (pp. 486-490). Tokyo, JP.

MLA:
Barfuß, Hendrik, et al. "Exploiting microphone array symmetry for robust two-dimensional polynomial beamforming." Proceedings of the International Workshop on Acoustic Signal Enhancement (IWAENC), Tokyo 2018. 486-490.

BibTeX: 

Last updated on 2019-03-06 at 07:10