Accurate DOA Estimation for Large-Scale Uniform Circular Array Using a Single Snapshot

Li, Q; Su, T; Wu, K

Accurate DOA Estimation for Large-Scale Uniform Circular Array Using a Single Snapshot

Li, Q Su, T Wu, K

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Publication Type:: Journal Article
Citation:: IEEE Communications Letters, 2019, 23 (2), pp. 302 - 305
Issue Date:: 2019-02-01

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Field	Value	Language
dc.contributor.author	Li, Q	en_US
dc.contributor.author	Su, T	en_US
dc.contributor.author	Wu, K	en_US
dc.date.available	2021-02-01T18:04:22Z
dc.date.issued	2019-02-01	en_US
dc.identifier.citation	IEEE Communications Letters, 2019, 23 (2), pp. 302 - 305	en_US
dc.identifier.issn	1089-7798	en_US
dc.identifier.uri	http://hdl.handle.net/10453/138973
dc.description.abstract	© 1997-2012 IEEE. A large-scale antenna array is an enabling technique for millimeter-wave communications. Uniform circular arrays (UCAs) have the spatial invariance property, ensuring the same beamforming performance in the whole angular region. However, the direction-of-arrival (DOA) estimation in UCAs is challenging since the array response of a UCA does not conform to a Vandermonde structure as that of a uniform linear array. This letter proposes an accurate and low-complexity DOA estimation approach by exploiting the good correlation property of the array response of the UCA. The DOA estimates are first obtained from a circular convolution between a single snapshot and the designed coefficient vector. Then, by searching for the best initial phase of the coefficient vector, the DOA estimates can be refined to a configurable accuracy. The simulation results demonstrate that the proposed approach outperforms the state of the art by orders of magnitude in estimation accuracy.	en_US
dc.relation.ispartof	IEEE Communications Letters	en_US
dc.relation.isbasedon	10.1109/LCOMM.2018.2889855	en_US
dc.rights	info:eu-repo/semantics/openAccess
dc.subject.classification	Networking & Telecommunications	en_US
dc.title	Accurate DOA Estimation for Large-Scale Uniform Circular Array Using a Single Snapshot	en_US
dc.type	Journal Article
utslib.citation.volume	2	en_US
utslib.citation.volume	23	en_US
utslib.for	0906 Electrical and Electronic Engineering	en_US
utslib.for	1005 Communications Technologies	en_US
utslib.for	0805 Distributed Computing	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Electrical and Data Engineering
utslib.copyright.status	open_access	*
pubs.issue	2	en_US
pubs.publication-status	Published	en_US
pubs.volume	23	en_US

Abstract:

© 1997-2012 IEEE. A large-scale antenna array is an enabling technique for millimeter-wave communications. Uniform circular arrays (UCAs) have the spatial invariance property, ensuring the same beamforming performance in the whole angular region. However, the direction-of-arrival (DOA) estimation in UCAs is challenging since the array response of a UCA does not conform to a Vandermonde structure as that of a uniform linear array. This letter proposes an accurate and low-complexity DOA estimation approach by exploiting the good correlation property of the array response of the UCA. The DOA estimates are first obtained from a circular convolution between a single snapshot and the designed coefficient vector. Then, by searching for the best initial phase of the coefficient vector, the DOA estimates can be refined to a configurable accuracy. The simulation results demonstrate that the proposed approach outperforms the state of the art by orders of magnitude in estimation accuracy.

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http://hdl.handle.net/10453/138973