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HRTF aided broadband doa estimation using two microphones

Talagala, Dumidu; Abhayapala, Thushara

Description

Two sensor broadband direction of arrival (DOA) estimation suffers from an inherent lack of dimensionality due to having just two sensors, yet humans and other animals are able to overcome this limitation using subtle variations introduced by the ears. Application of existing DOA estimation techniques to such systems becomes complicated due to the ill-behaved nature of the Head Related Transfer Function (HRTF). In this paper we present a subband signal extraction and focussing technique which...[Show more]

dc.contributor.authorTalagala, Dumidu
dc.contributor.authorAbhayapala, Thushara
dc.coverage.spatialGold Coast Australia
dc.date.accessioned2015-12-10T23:17:50Z
dc.date.createdOctober 2-5 2012
dc.identifier.isbn9781467311571
dc.identifier.urihttp://hdl.handle.net/1885/65369
dc.description.abstractTwo sensor broadband direction of arrival (DOA) estimation suffers from an inherent lack of dimensionality due to having just two sensors, yet humans and other animals are able to overcome this limitation using subtle variations introduced by the ears. Application of existing DOA estimation techniques to such systems becomes complicated due to the ill-behaved nature of the Head Related Transfer Function (HRTF). In this paper we present a subband signal extraction and focussing technique which retains the diversity information of the HRTF. We then develop a framework for combining these signals for subspace DOA estimation and investigate the constraints imposed on the single and multi-source DOA estimation problems. Finally, estimation performance is compared with existing techniques and we find performance has improved to be comparable to human localisation abilities.
dc.publisherIEEE Communications Society
dc.relation.ispartofseriesInternational Symposium on Communications and Information Technologies (ISCIT 2012)
dc.source.urihttp://www.iscit2012.org/
dc.subjectKeywords: Direction-of-arrival estimation; DOA estimation; Estimation performance; Head related transfer function; Localisation; Multisources; MUSIC; Source localisation; Subband signals; Two microphones; Information technology; Sensors; Direction of arrival Direction of arrival (DOA); head related transfer function (HRTF); MUSIC; source localisation
dc.titleHRTF aided broadband doa estimation using two microphones
dc.typeConference paper
local.description.notesImported from ARIES
local.description.refereedYes
dc.date.issued2012
local.identifier.absfor090609 - Signal Processing
local.identifier.ariespublicationu4334215xPUB1095
local.type.statusPublished Version
local.contributor.affiliationTalagala, Dumidu, College of Engineering and Computer Science, ANU
local.contributor.affiliationAbhayapala, Thushara, College of Engineering and Computer Science, ANU
local.description.embargo2037-12-31
local.bibliographicCitation.startpage1133
local.bibliographicCitation.lastpage1138
local.identifier.doi10.1109/ISCIT.2012.6380863
local.identifier.absseo970109 - Expanding Knowledge in Engineering
dc.date.updated2016-02-24T10:57:26Z
local.identifier.scopusID2-s2.0-84872158757
CollectionsANU Research Publications

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