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Methods and bounds for antenna array coupling matrix estimation
KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre. KTH, School of Electrical Engineering (EES), Signal Processing.
KTH, School of Electrical Engineering (EES), Signal Processing. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.
KTH, School of Electrical Engineering (EES), Signal Processing. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.
KTH, School of Electrical Engineering (EES), Signal Processing. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.ORCID iD: 0000-0003-2298-6774
2007 (English)In: 2007 IEEE International Conference on Acoustics, Speech, and Signal Processing, IEEE , 2007, 881-884 p.Conference paper, Published paper (Refereed)
Abstract [en]

A novel method is proposed for estimation of the mutual coupling matrix of an antenna array. The method extends previous work by incorporating an unknown phase center and the element factor (antenna radiation pattern) in the model, and treating these as nuisance parameters during the estimation of coupling. To facilitate this, a parametrization of the element factor based on a truncated Fourier series is proposed. The Cramer-Rao bound (CRB) for the estimation problem is derived and used to analyze how the required amount of measurement data increases when introducing a more and more flexible model for the element factor. Finally, the performance of the proposed estimator is illustrated using data from measurements on an 8-element antenna array.

Place, publisher, year, edition, pages
IEEE , 2007. 881-884 p.
Series
International Conference on Acoustics Speech and Signal Processing (ICASSP), ISSN 1520-6149
Keyword [en]
antenna array mutual coupling, estimation, Fourier series, Cramer-Rao lower bound
National Category
Signal Processing Communication Systems
Identifiers
URN: urn:nbn:se:kth:diva-34950DOI: 10.1109/ICASSP.2007.366377ISI: 000248908100221Scopus ID: 2-s2.0-34547543925OAI: oai:DiVA.org:kth-34950DiVA: diva2:427419
Conference
32nd IEEE International Conference on Acoustics, Speech and Signal Processing Honolulu, HI, APR 15-20, 2007
Note
QC 20110628Available from: 2011-06-28 Created: 2011-06-17 Last updated: 2012-01-23Bibliographically approved

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Ottersten, Björn

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