Angle-of-Arrival Estimation Using Difference Beams in Localized Hybrid Arrays.

Li, H; Cheng, Z

Angle-of-Arrival Estimation Using Difference Beams in Localized Hybrid Arrays.

Li, H

Cheng, Z

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Publisher:: MDPI
Publication Type:: Journal Article
Citation:: Sensors (Basel), 2021, 21, (5), pp. 1-11
Issue Date:: 2021-03-09

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Field	Value	Language
dc.contributor.author	Li, H https://orcid.org/0000-0001-9996-9695
dc.contributor.author	Cheng, Z
dc.date.accessioned	2022-03-12T22:10:44Z
dc.date.available	2021-02-22
dc.date.available	2022-03-12T22:10:44Z
dc.date.issued	2021-03-09
dc.identifier.citation	Sensors (Basel), 2021, 21, (5), pp. 1-11
dc.identifier.issn	1424-8220
dc.identifier.issn	1424-8220
dc.identifier.uri	http://hdl.handle.net/10453/155175
dc.description.abstract	Angle-of-arrival (AoA) estimation in localized hybrid arrays suffers from phase ambiguity owing to its localized structure and vulnerability to noise. In this letter, we propose a novel phase shift design, allowing each subarray to exploit difference beam steering in two potential AoA directions. This enables the calibration of cross-correlations and an enhanced phase offset estimation between adjacent subarrays. We propose two unambiguous AoA estimation schemes based on the even and odd ratios of the number of antennas per subarray N to the number of different phase shifts per symbol K (i.e., N/K), respectively. The simulation results show that the proposed approach greatly improves the estimation accuracy as compared to the state of the art when the ratio N/K is even.
dc.format	Electronic
dc.language	eng
dc.publisher	MDPI
dc.relation.ispartof	Sensors (Basel)
dc.relation.isbasedon	10.3390/s21051901
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	0301 Analytical Chemistry, 0502 Environmental Science and Management, 0602 Ecology, 0805 Distributed Computing, 0906 Electrical and Electronic Engineering
dc.subject.classification	Analytical Chemistry
dc.title	Angle-of-Arrival Estimation Using Difference Beams in Localized Hybrid Arrays.
dc.type	Journal Article
utslib.citation.volume	21
utslib.location.activity	Switzerland
utslib.for	0301 Analytical Chemistry
utslib.for	0502 Environmental Science and Management
utslib.for	0602 Ecology
utslib.for	0805 Distributed Computing
utslib.for	0906 Electrical and Electronic Engineering
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	*
dc.date.updated	2022-03-12T22:10:41Z
pubs.issue	5
pubs.publication-status	Published online
pubs.volume	21
utslib.citation.issue	5

Abstract:

Angle-of-arrival (AoA) estimation in localized hybrid arrays suffers from phase ambiguity owing to its localized structure and vulnerability to noise. In this letter, we propose a novel phase shift design, allowing each subarray to exploit difference beam steering in two potential AoA directions. This enables the calibration of cross-correlations and an enhanced phase offset estimation between adjacent subarrays. We propose two unambiguous AoA estimation schemes based on the even and odd ratios of the number of antennas per subarray N to the number of different phase shifts per symbol K (i.e., N/K), respectively. The simulation results show that the proposed approach greatly improves the estimation accuracy as compared to the state of the art when the ratio N/K is even.

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http://hdl.handle.net/10453/155175