Distributed lcmv beamforming: Considerations of spatial topology and local preprocessing

Dovid Y. Levin; Shmulik Markovich-Golan; Sharon Gannot

doi:10.1109/waspaa.2017.8170032

Distributed lcmv beamforming: Considerations of spatial topology and local preprocessing

Dovid Y. Levin, Shmulik Markovich-Golan, Sharon Gannot

Bar-Ilan University - The Alexander Kofkin Faculty of Engineering

Intel

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

2 Scopus citations

Abstract

A linearly constrained minimum variance (LCMV) beamformer aims to completely remove interference and optimize the signal-to-noise ratio (SNR). We examine an array geometry consisting of multiple sub-arrays. Our analysis shows that the increased intersensor distance typical of such setups is beneficial for the task of signal separation. Another unique feature of distributed arrays is the necessity of sharing information from different locations, which may pose a burden in terms of power and bandwidth resources. We discuss a scheme with minimalistic transmission requirements involving a preprocessing operation at each sub-array node. Expressions for the penalties due to preprocessing with local parameters are derived and corroborated with computer simulations.

Original language	English
Title of host publication	2017 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics, WASPAA 2017
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	244-248
Number of pages	5
ISBN (Electronic)	9781538616321
DOIs	https://doi.org/10.1109/waspaa.2017.8170032
State	Published - 7 Dec 2017
Event	2017 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics, WASPAA 2017 - New Paltz, United States Duration: 15 Oct 2017 → 18 Oct 2017

Publication series

Name	IEEE Workshop on Applications of Signal Processing to Audio and Acoustics
Volume	2017-October

Conference

Conference	2017 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics, WASPAA 2017
Country/Territory	United States
City	New Paltz
Period	15/10/17 → 18/10/17

Bibliographical note

Publisher Copyright:
© 2017 IEEE.

Keywords

LCMV beamforming
distributed arrays

Access to Document

10.1109/waspaa.2017.8170032

Cite this

Levin, D. Y., Markovich-Golan, S., & Gannot, S. (2017). Distributed lcmv beamforming: Considerations of spatial topology and local preprocessing. In 2017 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics, WASPAA 2017 (pp. 244-248). (IEEE Workshop on Applications of Signal Processing to Audio and Acoustics; Vol. 2017-October). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/waspaa.2017.8170032

Levin, Dovid Y. ; Markovich-Golan, Shmulik ; Gannot, Sharon. / Distributed lcmv beamforming : Considerations of spatial topology and local preprocessing. 2017 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics, WASPAA 2017. Institute of Electrical and Electronics Engineers Inc., 2017. pp. 244-248 (IEEE Workshop on Applications of Signal Processing to Audio and Acoustics).

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abstract = "A linearly constrained minimum variance (LCMV) beamformer aims to completely remove interference and optimize the signal-to-noise ratio (SNR). We examine an array geometry consisting of multiple sub-arrays. Our analysis shows that the increased intersensor distance typical of such setups is beneficial for the task of signal separation. Another unique feature of distributed arrays is the necessity of sharing information from different locations, which may pose a burden in terms of power and bandwidth resources. We discuss a scheme with minimalistic transmission requirements involving a preprocessing operation at each sub-array node. Expressions for the penalties due to preprocessing with local parameters are derived and corroborated with computer simulations.",

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Levin, DY, Markovich-Golan, S & Gannot, S 2017, Distributed lcmv beamforming: Considerations of spatial topology and local preprocessing. in 2017 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics, WASPAA 2017. IEEE Workshop on Applications of Signal Processing to Audio and Acoustics, vol. 2017-October, Institute of Electrical and Electronics Engineers Inc., pp. 244-248, 2017 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics, WASPAA 2017, New Paltz, United States, 15/10/17. https://doi.org/10.1109/waspaa.2017.8170032

Distributed lcmv beamforming: Considerations of spatial topology and local preprocessing. / Levin, Dovid Y.; Markovich-Golan, Shmulik; Gannot, Sharon.
2017 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics, WASPAA 2017. Institute of Electrical and Electronics Engineers Inc., 2017. p. 244-248 (IEEE Workshop on Applications of Signal Processing to Audio and Acoustics; Vol. 2017-October).

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

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Levin DY, Markovich-Golan S, Gannot S. Distributed lcmv beamforming: Considerations of spatial topology and local preprocessing. In 2017 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics, WASPAA 2017. Institute of Electrical and Electronics Engineers Inc. 2017. p. 244-248. (IEEE Workshop on Applications of Signal Processing to Audio and Acoustics). doi: 10.1109/waspaa.2017.8170032

Distributed lcmv beamforming: Considerations of spatial topology and local preprocessing

Abstract

Publication series

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Bibliographical note

Keywords

Access to Document

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