Vector modulator based active compensation of direct feedthrough

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buir.contributor.authorTaşdelen, Bilal
buir.contributor.authorYağız, Ecrin
buir.contributor.authorUtkur, Mustafa
buir.contributor.authorÇağıl, Ahmet R.
buir.contributor.authorAtalar, Ergin
buir.contributor.authorSarıtaş, Emine Ülkü
dc.citation.epage3en_US
dc.citation.issueNumber2 Suppl 1en_US
dc.citation.spage1en_US
dc.citation.volumeNumber6en_US
dc.contributor.authorTaşdelen, Bilal
dc.contributor.authorYağız, Ecrin
dc.contributor.authorUtkur, Mustafa
dc.contributor.authorÇağıl, Ahmet R.
dc.contributor.authorTop, C. B.
dc.contributor.authorAtalar, Ergin
dc.contributor.authorSarıtaş, Emine Ülkü
dc.date.accessioned2021-02-12T10:31:41Z
dc.date.available2021-02-12T10:31:41Z
dc.date.issued2020
dc.departmentAysel Sabuncu Brain Research Center (BAM)en_US
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.departmentInterdisciplinary Program in Neuroscience (NEUROSCIENCE)en_US
dc.departmentNational Magnetic Resonance Research Center (UMRAM)en_US
dc.description.abstractIn magnetic particle imaging (MPI), simultaneous excitation and signal acquisition leads to direct feedthrough problems. While this direct-feedthrough can be mitigated up to some extent with passive compensation, this may not be sufficient given the time-variant nature of the system. Active compensation methods are proposed to overcome this challenge. In magnetic resonance imaging (MRI), we have recently proposed a promising active compensation technique that uses a vector modulator-like structure to modify a copy of the transmitted signal and use it for subtracting the direct-feedthrough in analog domain. In this work, this technique is adapted to MPI for active compensation of the direct-feedthrough. We demonstrate a significant increase in detection sensitivity at the fundamental harmonic on an in-house arbitrary waveform relaxometer.en_US
dc.description.provenanceSubmitted by Onur Emek (onur.emek@bilkent.edu.tr) on 2021-02-12T10:31:41Z No. of bitstreams: 1 Vector_Modulator_Based_Active_Compensation_of_Direct_Feedthrough.pdf: 1197633 bytes, checksum: 2ee5f29106a03cb33d30f25b03448606 (MD5)en
dc.description.provenanceMade available in DSpace on 2021-02-12T10:31:41Z (GMT). No. of bitstreams: 1 Vector_Modulator_Based_Active_Compensation_of_Direct_Feedthrough.pdf: 1197633 bytes, checksum: 2ee5f29106a03cb33d30f25b03448606 (MD5) Previous issue date: 2020en
dc.identifier.doi10.18416/IJMPI.2020.2009065en_US
dc.identifier.issn2365-9033
dc.identifier.urihttp://hdl.handle.net/11693/55107
dc.language.isoEnglishen_US
dc.publisherInfinite Science Publishingen_US
dc.relation.isversionofhttps://dx.doi.org/10.18416/IJMPI.2020.2009065en_US
dc.source.titleInternational Journal on Magnetic Particle Imagingen_US
dc.titleVector modulator based active compensation of direct feedthroughen_US
dc.typeArticleen_US

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Department of Electrical and Electronics Engineering
Aysel Sabuncu Brain Research Center (BAM)
National Magnetic Resonance Research Center (UMRAM)