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Multidimensional Array Interpolation Applied to Direction of Arrival Estimation

Marinho, Marco A. M. and C. L. da Costa, Joao Paulo and Antreich, Felix and A. L. Almeida, Andre (2015) Multidimensional Array Interpolation Applied to Direction of Arrival Estimation. In: 19th International ITG Workshop on Smart Antennas (WSA) 2015. WSA 2015, 2015-03-03 - 2015-03-05, Ilmenau, Deutschland.

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In MIMO communications systems, the data has a natural multidimensional structure composed of time, frequency and space dimensions. Recently, multidimensional techniques that take into account the data multidimensional structure have been proposed for model order selection, parameter estimation and prewhitening. These multidimensional techniques require an array with a PARAFAC structure. However, in practice, building antenna arrays with precise geometries is not feasible. In this paper, we propose a multidimensional array interpolation scheme that forces a real imperfect array to become a PARAFAC array. Once the multidimensional interpolation is successfully performed, advantages such as increased identifiability, separation without imposing additional constraints and improved accuracy can be exploited. Numerical simulations show that the proposed method provides improved DOA estimation accuracy when a PARAFAC technique is applied to an originally non- PARAFAC array.

Item URL in elib:https://elib.dlr.de/101911/
Document Type:Conference or Workshop Item (Poster)
Title:Multidimensional Array Interpolation Applied to Direction of Arrival Estimation
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Marinho, Marco A. M.University of Brasilia/DLRUNSPECIFIEDUNSPECIFIED
C. L. da Costa, Joao PauloUniversity of BrasiliaUNSPECIFIEDUNSPECIFIED
A. L. Almeida, AndreFederal University of Ceará (UFC)UNSPECIFIEDUNSPECIFIED
Date:1 March 2015
Journal or Publication Title:19th International ITG Workshop on Smart Antennas (WSA) 2015
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:array interpolation, array mapping, multidimensional arrays, alternating least squares
Event Title:WSA 2015
Event Location:Ilmenau, Deutschland
Event Type:international Conference
Event Start Date:3 March 2015
Event End Date:5 March 2015
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Communication and Navigation
DLR - Research area:Raumfahrt
DLR - Program:R KN - Kommunikation und Navigation
DLR - Research theme (Project):R - Vorhaben GNSS2/Neue Dienste und Produkte (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Communication and Navigation > Navigation
Deposited By: Antreich, Felix
Deposited On:12 Jan 2016 11:34
Last Modified:24 Apr 2024 20:07

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