On 2D localization of reflectors using robust beamforming techniques

Mabande E, Sun H, Kowalczyk K, Kellermann W (2011)

Publication Language: English

Publication Status: Published

Publication Type: Conference contribution, Conference Contribution

Publication year: 2011

Pages Range: 153-156

Article Number: 5946363

Event location: Prague CZ

ISBN: 9781457705397

DOI: 10.1109/ICASSP.2011.5946363

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.

Authors with CRIS profile

Edwin Mabande Professur für Signalverarbeitung Konrad Kowalczyk Professur für Signalverarbeitung Walter Kellermann Professur für Signalverarbeitung

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.

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