Coherent array imaging using phased subarrays. Part II: Simulations and experimental results

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dc.authorid0000-0001-8616-6877
dc.authorid0000-0002-6193-5761
dc.authorid0000-0003-3940-7898
dc.contributor.authorJohnson, Jeremy A.en_US
dc.contributor.authorOralkan, Ömeren_US
dc.contributor.authorErgün, Arif Sanlıen_US
dc.contributor.authorDemirci, Utkanen_US
dc.contributor.authorKaraman, Mustafaen_US
dc.contributor.authorKhuri-Yakub, Butrus Thomasen_US
dc.date.accessioned2015-01-15T23:00:21Z
dc.date.available2015-01-15T23:00:21Z
dc.date.issued2005-01
dc.departmentIşık Üniversitesi, Mühendislik Fakültesi, Elektrik-Elektronik Mühendisliği Bölümüen_US
dc.departmentIşık University, Faculty of Engineering, Department of Electrical-Electronics Engineeringen_US
dc.description.abstractThe basic principles and theory of phased subarray (PSA) imaging imaging provides the flexibility of reducing I he number of front-end hardware channels between that of classical synthetic aperture (CSA) imaging-which uses only one element per firing event-and full-phased array (FPA,) imaging-which uses all elements for each firing. The performance of PSA generally ranges between that obtained by CSA and FPA using the same array, and depends on the amount of hardware complexity reduction. For the work described in this paper, we performed FPA, CSA, and PSA imaging of a resolution phantom using both simulated and experimental data from a 3-MHz, 3.2-cm, 128-element capacitive micromachined ultrasound transducer (CMUT) array. The simulated system point responses in the spatial and frequency domains are presented as a means of studying the effects of signal bandwidth, reconstruction filter size, and subsampling rate on the PSA system performance. The PSA and FPA sector-scanned images were reconstructed using the wideband experimental data with 80% fractional bandwidth, with seven 32-element subarrays used for PSA imaging. The measurements on the experimental sector images indicate that, at the transmit focal zone, the PSA method provides a 10% improvement in the 6-dB lateral resolution, and the axial point resolution of PSA imaging is identical to that of FPA imaging. The signal-to-noise ratio (SNR) of PSA image was 58.3 dB, 4.9 dB below that of the FPA image, and the contrast-to-noise ratio (CNR) is reduced by 10%. The simulated and experimental test results presented in this paper validate theoretical expectations and illustrate the flexibility of PSA imaging as a way to exchange SNR and frame rate for simplified front-end hardware.en_US
dc.description.versionPublisher's Versionen_US
dc.identifier.citationJohnson, J., Oralkan, O., Ergün, A. S., Demirci, U., Karaman, M. & Khuri-Yakub, B. (2005). Coherent array imaging using phased subarrays. Part II: Simulations and experimental results. IEEE Transactions On Ultrasonics Ferroelectrics And Frequency Control, 52(1), 51-64. doi:10.1109/TUFFC.2005.1397350en_US
dc.identifier.doi10.1109/TUFFC.2005.1397350
dc.identifier.endpage64
dc.identifier.issn0885-3010
dc.identifier.issn1525-8955
dc.identifier.issue1
dc.identifier.pmid15742562
dc.identifier.scopus2-s2.0-13844253849
dc.identifier.scopusqualityQ1
dc.identifier.startpage51
dc.identifier.urihttps://hdl.handle.net/11729/192
dc.identifier.urihttp://dx.doi.org/10.1109/TUFFC.2005.1397350
dc.identifier.volume52
dc.identifier.wosWOS:000226812800007
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.indekslendigikaynakScience Citation Index Expanded (SCI-EXPANDED)en_US
dc.institutionauthorKaraman, Mustafaen_US
dc.language.isoenen_US
dc.peerreviewedYesen_US
dc.publicationstatusPublisheden_US
dc.publisherIEEE-INST Electrical Electronics Engineers Incen_US
dc.relation.ispartofIEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Controlen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectBandwidthen_US
dc.subjectHardwareen_US
dc.subjectImage reconstructionen_US
dc.subjectImage resolutionen_US
dc.subjectImaging phantomsen_US
dc.subjectPhased arraysen_US
dc.subjectSignal resolutionen_US
dc.subjectSpatial resolutionen_US
dc.subjectUltrasonic imagingen_US
dc.subjectComputer simulationen_US
dc.subjectComputer-aided designen_US
dc.subjectEchocardiography, doppler, pulseden_US
dc.subjectEquipment designen_US
dc.subjectEquipment failure analysisen_US
dc.subjectImage enhancementen_US
dc.subjectImage interpretation, computer-assisteden_US
dc.subjectModels, biologicalen_US
dc.subjectPhantoms, imagingen_US
dc.subjectTomography, optical coherenceen_US
dc.subjectTransducersen_US
dc.subject3 MHzen_US
dc.subject3.2 cmen_US
dc.subjectAxial point resolutionen_US
dc.subjectCapacitive micromachined ultrasound transducer arrayen_US
dc.subjectClassical synthetic aperture imagingen_US
dc.subjectCoherent array imagingen_US
dc.subjectFilter sizeen_US
dc.subjectFrame rateen_US
dc.subjectFrequency domainsen_US
dc.subjectFront-end hardware channelsen_US
dc.subjectFull-phased array imagingen_US
dc.subjectPhased subarraysen_US
dc.subjectResolution phantomen_US
dc.subjectSignal bandwidthen_US
dc.subjectSubsampling rateen_US
dc.subjectArray signal processingen_US
dc.subjectFrequency-domain analysisen_US
dc.subjectUltrasonic transducer arraysen_US
dc.subjectCorrosionen_US
dc.subjectElectric currentsen_US
dc.subjectArraysen_US
dc.subjectElectromagnetic wave attenuationen_US
dc.subjectInterpolationen_US
dc.subjectScanningen_US
dc.subjectSignal to noise ratioen_US
dc.subjectSpurious signal noiseen_US
dc.subjectSynthetic aperturesen_US
dc.subjectUltrasonic transducersen_US
dc.subjectVegetable oilsen_US
dc.subjectCapacitive micromachined ultrasound tranducers (CMUT)en_US
dc.subjectClassical synthetic apertures (CSA)en_US
dc.subjectContrast-to-noise ratio (CNR)en_US
dc.subjectPhased subarrays (PSA)en_US
dc.subjectBiological modelen_US
dc.subjectComputer aided designen_US
dc.subjectComputer assisted diagnosisen_US
dc.subjectDoppler echocardiographyen_US
dc.subjectEquipmenten_US
dc.subjectEvaluationen_US
dc.subjectImage enhancementen_US
dc.subjectImage qualityen_US
dc.subjectInstrumentationen_US
dc.subjectMethodologyen_US
dc.subjectOptical coherence tomographyen_US
dc.subjectTransduceren_US
dc.subjectValidation studyen_US
dc.subjectImaging systemsen_US
dc.titleCoherent array imaging using phased subarrays. Part II: Simulations and experimental resultsen_US
dc.typeArticleen_US
dspace.entity.typePublication

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