Digital beamforming techniques and VLSI circuits for medical ultrasound imaging

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buir.advisorKöymen, Hayrettin
dc.contributor.authorKaraman, Mustafa
dc.date.accessioned2016-01-08T20:19:30Z
dc.date.available2016-01-08T20:19:30Z
dc.date.issued1992
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.descriptionAnkara : Department of Electrical and Electronics Engineering and Institute of Engineering and Science, Bilkent Univ., 1992.en_US
dc.descriptionThesis (Ph. D.) -- Bilkent University, 1992.en_US
dc.descriptionIncludes bibliographical references.en_US
dc.description.abstractFor phased array medical ultrasound imaging, digital beamforming techniques and VLSI circuits are studied to form a fully digital receive front-end hardware. To increase the timing accuracy in beamforming, a computationally efficient upsampling schme is examined. A digital beamforming method based on receive focusing at the raster focal points is proposed. The sector images of the resolution phantom, reconstructed from the phased array experimental data by beamforming at the radial and raster focal points, are presented for comparison of the image resolution performance of the two beamforming schemes. For adaptive beamforming, a phase aberration correction technique with very low computational complexity is described. Image quality performance of the technique is examined by digitally processing the non-aberrated and aberrated phased array experimental data sets of an ultrasound resolution phantom. VLSI circuits and their implementations for the proposed techniques are presented.en_US
dc.description.degreePh.D.en_US
dc.description.statementofresponsibilityKaraman, Mustafaen_US
dc.format.extentx, 90 leavesen_US
dc.identifier.urihttp://hdl.handle.net/11693/18456
dc.language.isoEnglishen_US
dc.publisherBilkent Universityen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectMedical ultrasound imagingen_US
dc.subjectDigital beamformingen_US
dc.subjectPhased array beamformingen_US
dc.subjectPhase aberration correctionen_US
dc.subjectVLSI circuiten_US
dc.subject.lccQT34 .K37 1992en_US
dc.subject.lcshUltrasonic imaging.en_US
dc.subject.lcshUltrasonics--Diagnostic use.en_US
dc.subject.lcshIntegrated circuits.en_US
dc.subject.lcshElectron beams.en_US
dc.titleDigital beamforming techniques and VLSI circuits for medical ultrasound imagingen_US
dc.typeThesisen_US

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