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Direction of arrival estimation using pseudo-intensity vectors with direct-path dominance test

Direction of arrival estimation using pseudo-intensity vectors with direct-path dominance test
Direction of arrival estimation using pseudo-intensity vectors with direct-path dominance test

The accuracy of direction of arrival estimation tends to degrade under reverberant conditions due to the presence of reflected signal components which are correlated with the direct path. The recently proposed direct-path dominance test provides a means of identifying time-frequency regions in which a single signal path is dominant. By analysing only these regions it was shown that the accuracy of the FS-MUSIC algorithm could be significantly improved. However, for real-time implementation a less computationally demanding localisation algorithm would be preferable. In the present contribution we investigate the direct-path dominance test as a preprocessing step to pseudo-intensity vector-based localisation. A novel formulation of the pseudo-intensity vector is proposed which further exploits the direct path dominance test and leads to improved localisation performance.

direction of arrival estimation, pseudo-intensity vectors, spherical harmonic domain
2296-2300
Institute of Electrical and Electronics Engineers Inc.
Moore, Alastairh
58d011fd-6a02-449a-9b77-651e8c86166e
Evers, Christine
93090c84-e984-4cc3-9363-fbf3f3639c4b
Naylor, Patrick A.
13079486-664a-414c-a1a2-01a30bf0997b
Alon, David L.
489d45f7-3ffd-4ca5-9ed1-11bc6b7d7b7f
Rafaely, Boaz
0839a7e8-bdbc-4f46-b57b-a9e5c625e968
Moore, Alastairh
58d011fd-6a02-449a-9b77-651e8c86166e
Evers, Christine
93090c84-e984-4cc3-9363-fbf3f3639c4b
Naylor, Patrick A.
13079486-664a-414c-a1a2-01a30bf0997b
Alon, David L.
489d45f7-3ffd-4ca5-9ed1-11bc6b7d7b7f
Rafaely, Boaz
0839a7e8-bdbc-4f46-b57b-a9e5c625e968

Moore, Alastairh, Evers, Christine, Naylor, Patrick A., Alon, David L. and Rafaely, Boaz (2015) Direction of arrival estimation using pseudo-intensity vectors with direct-path dominance test. In 2015 23rd European Signal Processing Conference, EUSIPCO 2015. Institute of Electrical and Electronics Engineers Inc. pp. 2296-2300 . (doi:10.1109/EUSIPCO.2015.7362794).

Record type: Conference or Workshop Item (Paper)

Abstract

The accuracy of direction of arrival estimation tends to degrade under reverberant conditions due to the presence of reflected signal components which are correlated with the direct path. The recently proposed direct-path dominance test provides a means of identifying time-frequency regions in which a single signal path is dominant. By analysing only these regions it was shown that the accuracy of the FS-MUSIC algorithm could be significantly improved. However, for real-time implementation a less computationally demanding localisation algorithm would be preferable. In the present contribution we investigate the direct-path dominance test as a preprocessing step to pseudo-intensity vector-based localisation. A novel formulation of the pseudo-intensity vector is proposed which further exploits the direct path dominance test and leads to improved localisation performance.

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More information

Published date: 22 December 2015
Venue - Dates: 23rd European Signal Processing Conference, EUSIPCO 2015, , Nice, France, 2015-08-30 - 2015-09-03
Keywords: direction of arrival estimation, pseudo-intensity vectors, spherical harmonic domain

Identifiers

Local EPrints ID: 446091
URI: http://eprints.soton.ac.uk/id/eprint/446091
PURE UUID: 4a97b1d8-a5fe-4ec8-987b-8a4dadde1912
ORCID for Christine Evers: ORCID iD orcid.org/0000-0003-0757-5504

Catalogue record

Date deposited: 20 Jan 2021 17:32
Last modified: 18 Feb 2021 17:41

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