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Conference Paper: Theory and design of uniform concentric circular arrays with frequency invariant characteristics

TitleTheory and design of uniform concentric circular arrays with frequency invariant characteristics
Authors
Issue Date2005
PublisherIEEE.
Citation
Icassp, Ieee International Conference On Acoustics, Speech And Signal Processing - Proceedings, 2005, v. IV, p. IV805-IV808 How to Cite?
AbstractThis paper proposes a new digital beamformer for uniform concentric circular array (UCCA) having nearly frequency invariant (FI) characteristics. The basic principle is to transform the received signals to the phase mode and remove the frequency dependency of the individual phase mode through the use of a digital beamforming network. The far field pattern of the array is determined by a set of weights and it is approximately invariant over a wide range of frequencies. Compared with FI uniform circular array (UCA), FI UCCAs are able to achieve a wider bandwidth. Design examples are given to demonstrate the principle of the proposed UCCA-FIB and its application to broadband DOA estimation of coherent sources. © 2005 IEEE.
Persistent Identifierhttp://hdl.handle.net/10722/45779
ISSN
References

 

DC FieldValueLanguage
dc.contributor.authorChan, SCen_HK
dc.contributor.authorChen, HHen_HK
dc.date.accessioned2007-10-30T06:35:17Z-
dc.date.available2007-10-30T06:35:17Z-
dc.date.issued2005en_HK
dc.identifier.citationIcassp, Ieee International Conference On Acoustics, Speech And Signal Processing - Proceedings, 2005, v. IV, p. IV805-IV808en_HK
dc.identifier.issn1520-6149en_HK
dc.identifier.urihttp://hdl.handle.net/10722/45779-
dc.description.abstractThis paper proposes a new digital beamformer for uniform concentric circular array (UCCA) having nearly frequency invariant (FI) characteristics. The basic principle is to transform the received signals to the phase mode and remove the frequency dependency of the individual phase mode through the use of a digital beamforming network. The far field pattern of the array is determined by a set of weights and it is approximately invariant over a wide range of frequencies. Compared with FI uniform circular array (UCA), FI UCCAs are able to achieve a wider bandwidth. Design examples are given to demonstrate the principle of the proposed UCCA-FIB and its application to broadband DOA estimation of coherent sources. © 2005 IEEE.en_HK
dc.format.extent1425133 bytes-
dc.format.extent27162 bytes-
dc.format.mimetypeapplication/pdf-
dc.format.mimetypetext/plain-
dc.languageengen_HK
dc.publisherIEEE.en_HK
dc.relation.ispartofICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedingsen_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.rights©2005 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.en_HK
dc.titleTheory and design of uniform concentric circular arrays with frequency invariant characteristicsen_HK
dc.typeConference_Paperen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1520-6149&volume=4&spage=805&epage=808&date=2005&atitle=Theory+and+design+of+uniform+concentric+circular+arrays+with+frequency+invariant+characteristics+[sensor+arrays]en_HK
dc.identifier.emailChan, SC:scchan@eee.hku.hken_HK
dc.identifier.authorityChan, SC=rp00094en_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.doi10.1109/ICASSP.2005.1416131en_HK
dc.identifier.scopuseid_2-s2.0-33646815355en_HK
dc.identifier.hkuros102944-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-33646815355&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volumeIVen_HK
dc.identifier.spageIV805en_HK
dc.identifier.epageIV808en_HK
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridChan, SC=13310287100en_HK
dc.identifier.scopusauthoridChen, HH=35188516200en_HK

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