On the performance of widely linear quaternion based MVDR beamformer for an acoustic vector sensor

Jiuwen Cao; Andy W.H. Khong; Sharon Gannot

doi:10.1109/iwaenc.2014.6954307

On the performance of widely linear quaternion based MVDR beamformer for an acoustic vector sensor

Jiuwen Cao, Andy W.H. Khong, Sharon Gannot

Bar-Ilan University - The Alexander Kofkin Faculty of Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

12 Scopus citations

Abstract

Widely linear model has recently been used for signal processing applications due to its ability to achieve better performance than conventional linear filtering for non-circular complex random variables (CRVs) and improper quaternion random variables (QRVs). In this paper, we study the time-domain widely linear quaternion model based minimum variance distortionless response beamformer (WL-QMVDR) for a single acoustic vector sensor (AVS) and analyze its performance in general through the use of beampatterns. We verify by simulation results that the estimated output of the WL-QMVDR is identical to the conventional linear model based MVDR beamformer when applied to an AVS in the non-reverberant and ideal sensor response scenario.

Original language	English
Title of host publication	2014 14th International Workshop on Acoustic Signal Enhancement, IWAENC 2014
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	303-307
Number of pages	5
ISBN (Electronic)	9781479968084
DOIs	https://doi.org/10.1109/iwaenc.2014.6954307
State	Published - 11 Nov 2014
Event	2014 14th International Workshop on Acoustic Signal Enhancement, IWAENC 2014 - Juan-les-Pins, France Duration: 8 Sep 2014 → 11 Sep 2014

Publication series

Name	2014 14th International Workshop on Acoustic Signal Enhancement, IWAENC 2014

Conference

Conference	2014 14th International Workshop on Acoustic Signal Enhancement, IWAENC 2014
Country/Territory	France
City	Juan-les-Pins
Period	8/09/14 → 11/09/14

Bibliographical note

Publisher Copyright:
© 2014 IEEE.

Keywords

Acoustic vector sensor
Circularity
MVDR
Q-proper
Widely linear quaternion model

Access to Document

10.1109/iwaenc.2014.6954307

Cite this

Cao, J., Khong, A. W. H., & Gannot, S. (2014). On the performance of widely linear quaternion based MVDR beamformer for an acoustic vector sensor. In 2014 14th International Workshop on Acoustic Signal Enhancement, IWAENC 2014 (pp. 303-307). Article 6954307 (2014 14th International Workshop on Acoustic Signal Enhancement, IWAENC 2014). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/iwaenc.2014.6954307

Cao, Jiuwen ; Khong, Andy W.H. ; Gannot, Sharon. / On the performance of widely linear quaternion based MVDR beamformer for an acoustic vector sensor. 2014 14th International Workshop on Acoustic Signal Enhancement, IWAENC 2014. Institute of Electrical and Electronics Engineers Inc., 2014. pp. 303-307 (2014 14th International Workshop on Acoustic Signal Enhancement, IWAENC 2014).

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abstract = "Widely linear model has recently been used for signal processing applications due to its ability to achieve better performance than conventional linear filtering for non-circular complex random variables (CRVs) and improper quaternion random variables (QRVs). In this paper, we study the time-domain widely linear quaternion model based minimum variance distortionless response beamformer (WL-QMVDR) for a single acoustic vector sensor (AVS) and analyze its performance in general through the use of beampatterns. We verify by simulation results that the estimated output of the WL-QMVDR is identical to the conventional linear model based MVDR beamformer when applied to an AVS in the non-reverberant and ideal sensor response scenario.",

keywords = "Acoustic vector sensor, Circularity, MVDR, Q-proper, Widely linear quaternion model",

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Cao, J, Khong, AWH & Gannot, S 2014, On the performance of widely linear quaternion based MVDR beamformer for an acoustic vector sensor. in 2014 14th International Workshop on Acoustic Signal Enhancement, IWAENC 2014., 6954307, 2014 14th International Workshop on Acoustic Signal Enhancement, IWAENC 2014, Institute of Electrical and Electronics Engineers Inc., pp. 303-307, 2014 14th International Workshop on Acoustic Signal Enhancement, IWAENC 2014, Juan-les-Pins, France, 8/09/14. https://doi.org/10.1109/iwaenc.2014.6954307

On the performance of widely linear quaternion based MVDR beamformer for an acoustic vector sensor. / Cao, Jiuwen; Khong, Andy W.H.; Gannot, Sharon.
2014 14th International Workshop on Acoustic Signal Enhancement, IWAENC 2014. Institute of Electrical and Electronics Engineers Inc., 2014. p. 303-307 6954307 (2014 14th International Workshop on Acoustic Signal Enhancement, IWAENC 2014).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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Cao J, Khong AWH, Gannot S. On the performance of widely linear quaternion based MVDR beamformer for an acoustic vector sensor. In 2014 14th International Workshop on Acoustic Signal Enhancement, IWAENC 2014. Institute of Electrical and Electronics Engineers Inc. 2014. p. 303-307. 6954307. (2014 14th International Workshop on Acoustic Signal Enhancement, IWAENC 2014). doi: 10.1109/iwaenc.2014.6954307

On the performance of widely linear quaternion based MVDR beamformer for an acoustic vector sensor

Abstract

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Keywords

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