Exact Robust Solution to TW-ToA-Based Target Localization Problem With Clock Imperfections

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dc.contributor.authorTomic, Slavisa
dc.contributor.authorBeko, Marko
dc.contributor.institutionEscola de Comunicação, Arquitetura, Artes e Tecnologias da Informação
dc.date.issued2018
dc.descriptionIEEE Signal Processing Letters
dc.description.abstractThis letter addresses the problem of target localization based on two-way time of arrival (TW-ToA) measurements with clock imperfections. In addition to the target location, the turn-around times and clock skews are considered unknown. Since an optimal estimator for this problem cannot be tackled directly, we approximate it by a suboptimal, robust one, formulated as a generalized trust region subproblem. Even though nonconvex in general, exact solution of the derived estimator can be obtained by just a bisection procedure. Simulation results validate the effectiveness of the proposed technique, matching the performance of the state of the art with significantly lower computational complexity.en
dc.description.sponsorshipManuscript received October 2, 2017; revised January 22, 2018; accepted February 26, 2018. Date of publication February 28, 2018; date of current version March 14, 2018. This work was supported in part by Fundac¸ão para a Ciência e a Tecnologia under Project PEst-OE/EEI/UI0066/2014 and Project UID/EEA/50009/2013; and in part by the Program Investigador Fundac¸ão para a Ciência e Tecnologia under Grant IF/00325/2015. The associate editor coordinating the review of this manuscript and approving it for publication was Prof. Parv Venkitasubramaniam. (Corresponding author: Slavisa Tomic.) S. Tomic is with the COPELABS, Universidade Lusófona de Humanidades e Tecnologias, Lisboa 1749-024, Portugal, and also with the Institute for Systems and Robotics/Instituto Superior Tecnico, Laboratory for Robotics and Engineering Systems, Universidade de Lisboa, Lisbon 1049-001, Portugal (e-mail: slavisa.tomic@ulusofona.pt).
dc.description.statusNon peer reviewed
dc.formatapplication/pdf
dc.identifier.citationTomic , S & Beko , M 2018 , ' Exact Robust Solution to TW-ToA-Based Target Localization Problem With Clock Imperfections ' , IEEE Signal Processing Letters , vol. 25 , no. 4 , pp. 531 - 535 . https://doi.org/10.1109/LSP.2018.2810829
dc.identifier.doihttps://doi.org/10.1109/LSP.2018.2810829
dc.identifier.issn1558-2361
dc.identifier.urlhttps://www.scopus.com/record/display.uri?eid=2-s2.0-85042854949&origin=resultslist&sort=plf-f&src=s&sid=0799014e1ee5c6346b34da51fcac1995&sot=b&sdt=b&s=TITLE-ABS-KEY%28Exact+Robust+Solution+to+TW-ToA-Based+Target+Localization+Problem+With+Clock+Imperfections%29&sl=105&sessionSearchId=0799014e1ee5c6346b34da51fcac1995&relpos=0
dc.language.isoeng
dc.publisherInstitute of Electrical and Electronics Engineers Inc.
dc.relation.ispartofseriesvol.25, no.4, 531 - 535
dc.rightsopenAccess
dc.subjectENGENHARIA ELETROTÉCNICA
dc.subjectTIME OF ARRIVAL
dc.subjectTIME OF ARRIVAL
dc.subjectELECTROTECHNICAL ENGINEERING
dc.titleExact Robust Solution to TW-ToA-Based Target Localization Problem With Clock Imperfectionsen
dc.typearticle

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