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Conference Paper: A subspace-based method for DOA estimation of uniform linear array in the presence of mutual coupling

TitleA subspace-based method for DOA estimation of uniform linear array in the presence of mutual coupling
Authors
KeywordsDirection-of-arrival estimation
Doa estimation
Joint estimation
Matrix
Mutual coupling
Issue Date2010
PublisherIEEE.
Citation
The IEEE International Symposium on Circuits and Systems (ISCAS) 2010, Paris, France, 30 May-2 June 2010. In Proceedings of ISCAS, 2010, p. 1879-1882 How to Cite?
AbstractThis paper develops a subspace-based method for direction-of-arrival (DOA) estimation of uniform linear array (ULA) in the presence of mutual coupling. As the mutual coupling coefficient between two sensor elements is inversely related to their separation and is negligible when they are separated by a few wavelengths, the mutual coupling matrix (MCM) of a ULA can be well approximated as a banded symmetric Toeplitz matrix, which greatly reduces the number of unknown parameters to be estimated. Using the subspace principle, we propose a new method for joint estimation of the DOAs of incoming signals and banded symmetric Toeplitz MCM by reconstructing the steering vector to a specific matrix form. The proposed method achieves a better performance especially for weak signals than the method in [8], since the whole array, instead of the middle subarray in [8], is used for DOA estimation. Simulation results illustrate that both DOAs and mutual coupling coefficients can be estimated efficiently with the proposed method. ©2010 IEEE.
Persistent Identifierhttp://hdl.handle.net/10722/126157
ISSN
References

 

DC FieldValueLanguage
dc.contributor.authorLiao, Ben_HK
dc.contributor.authorZhang, ZGen_HK
dc.contributor.authorChan, SCen_HK
dc.date.accessioned2010-10-31T12:12:53Z-
dc.date.available2010-10-31T12:12:53Z-
dc.date.issued2010en_HK
dc.identifier.citationThe IEEE International Symposium on Circuits and Systems (ISCAS) 2010, Paris, France, 30 May-2 June 2010. In Proceedings of ISCAS, 2010, p. 1879-1882en_HK
dc.identifier.issn0271-4302-
dc.identifier.urihttp://hdl.handle.net/10722/126157-
dc.description.abstractThis paper develops a subspace-based method for direction-of-arrival (DOA) estimation of uniform linear array (ULA) in the presence of mutual coupling. As the mutual coupling coefficient between two sensor elements is inversely related to their separation and is negligible when they are separated by a few wavelengths, the mutual coupling matrix (MCM) of a ULA can be well approximated as a banded symmetric Toeplitz matrix, which greatly reduces the number of unknown parameters to be estimated. Using the subspace principle, we propose a new method for joint estimation of the DOAs of incoming signals and banded symmetric Toeplitz MCM by reconstructing the steering vector to a specific matrix form. The proposed method achieves a better performance especially for weak signals than the method in [8], since the whole array, instead of the middle subarray in [8], is used for DOA estimation. Simulation results illustrate that both DOAs and mutual coupling coefficients can be estimated efficiently with the proposed method. ©2010 IEEE.en_HK
dc.languageengen_HK
dc.publisherIEEE.-
dc.relation.ispartofProceedings of the IEEE International Symposium on Circuits and Systems, ISCAS 2010en_HK
dc.rightsIEEE International Symposium on Circuits and Systems Proceedings. Copyright © IEEE.-
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.rights©2010 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.-
dc.subjectDirection-of-arrival estimation-
dc.subjectDoa estimation-
dc.subjectJoint estimation-
dc.subjectMatrix-
dc.subjectMutual coupling-
dc.titleA subspace-based method for DOA estimation of uniform linear array in the presence of mutual couplingen_HK
dc.typeConference_Paperen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0271-4302&volume=&spage=1879&epage=1882&date=2010&atitle=A+subspace-based+method+for+DOA+estimation+of+uniform+linear+array+in+the+presence+of+mutual+coupling-
dc.identifier.emailChan, SC:scchan@eee.hku.hken_HK
dc.identifier.authorityChan, SC=rp00094en_HK
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1109/ISCAS.2010.5537889en_HK
dc.identifier.scopuseid_2-s2.0-77956004154en_HK
dc.identifier.hkuros174344en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-77956004154&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.spage1879en_HK
dc.identifier.epage1882en_HK
dc.description.otherThe IEEE International Symposium on Circuits and Systems (ISCAS) 2010, Paris, France, 30 May-2 June 2010. In Proceedings of ISCAS, 2010, p. 1879-1882-
dc.identifier.scopusauthoridLiao, B=44661377800en_HK
dc.identifier.scopusauthoridZhang, ZG=15039888400en_HK
dc.identifier.scopusauthoridChan, SC=13310287100en_HK

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