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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.accessioned2019-08-31T12:10:23Z
dc.date.accessioned2019-08-05T16:05:06Z
dc.date.available2019-08-31T12:10:23Z
dc.date.available2019-08-05T16:05:06Z
dc.date.issued2003
dc.identifier.citationJohnson, J. A., Oralkan, O., Ergun, A. S., Demirci, U., Karaman, M., & Khuri-Yakub, B. T. (2003). Phased subarray imaging for low-cost, wideband coherent array imaging. Paper presented at the , 2 1875-1878 Vol.2. doi:10.1109/ULTSYM.2003.1293280en_US
dc.identifier.isbn0780379225
dc.identifier.issn1051-0117
dc.identifier.otherWOS:000189492100435
dc.identifier.urihttps://hdl.handle.net/11729/2051
dc.identifier.urihttps://dx.doi.org/10.1109/ULTSYM.2003.1293280
dc.description.abstractThe front-end hardware complexity of conventional full phased array (FPA) imaging is proportional to the number of array elements. Phased subarray (PSA) imaging has been proposed as a method of reducing the hardware complexity-and therefore system cost and size-while achieving near-FPA image quality. A new method is presented for designing the subarray-dependent interpolation filters suitable for wideband PSA imaging. The method was tested experimentally using pulse-echo data of a wire target phantom acquired using a 3.2-cm. 128-element capacitive micromachined ultrasonic transducer (CMUT) array with 85% fractional bandwidth at 3 MHz. A specific PSA configuration using seven 32-element subarrays was compared to FPA imaging, representing a 4-fold reduction in front-end hardware complexity and a 43% decrease in frame rate. For targets near the fixed transmit focal distance, the mean 6-dB lateral resolution was identical to that of FPA, the axial resolution improved by 4%, and the SNR decreased by 5 dB. Measurements were repeated for 10 different PSA configurations with subarray sizes ranging from 4 to 60. The lateral and axial resolutions did not vary significantly with subarray size; both the SNR and contrast-to-noise ratio (CNR) improved with increased subarray size.en_US
dc.language.isoengen_US
dc.publisherIEEEen_US
dc.relation.ispartofseriesUltrasonics Symposiumen_US
dc.relation.isversionof10.1109/ULTSYM.2003.1293280
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subject3 MHzen_US
dc.subject3.2 cmen_US
dc.subjectAntenna phased arraysen_US
dc.subjectAxial resolutionen_US
dc.subjectBandwidthen_US
dc.subjectBeamformingen_US
dc.subjectCapacitive micromachines ultrasonic transduceren_US
dc.subjectContrast-to-noise ratioen_US
dc.subjectCost effectivenessen_US
dc.subjectCostsen_US
dc.subjectFiltersen_US
dc.subjectFlow imagingen_US
dc.subjectFPA imagingen_US
dc.subjectFront-end hardware complexityen_US
dc.subjectFull phased arrayen_US
dc.subjectFull phased array (FPA)en_US
dc.subjectHardwareen_US
dc.subjectImage qualityen_US
dc.subjectImage resolutionen_US
dc.subjectImagingen_US
dc.subjectImaging systemsen_US
dc.subjectInterpolationen_US
dc.subjectInterpolation filtersen_US
dc.subjectLateral resolutionen_US
dc.subjectLow cost array imagingen_US
dc.subjectNyquist diagramsen_US
dc.subjectPhantomsen_US
dc.subjectPhased arraysen_US
dc.subjectPhased subarray imagingen_US
dc.subjectPulse-echo dataen_US
dc.subjectSignal to noise ratioen_US
dc.subjectSNRen_US
dc.subjectSubarray-dependent interpolation filtersen_US
dc.subjectSystem costen_US
dc.subjectSystem sizeen_US
dc.subjectTestingen_US
dc.subjectTransducersen_US
dc.subjectTransmit focal distanceen_US
dc.subjectUltrasonic imagingen_US
dc.subjectUltrasonic transducer arraysen_US
dc.subjectUltrasonic transducersen_US
dc.subjectWidebanden_US
dc.subjectWideband coherent array imagingen_US
dc.subjectWire target phantomen_US
dc.titlePhased subarray imaging for low-cost, wideband coherent array imagingen_US
dc.typeconferenceObjecten_US
dc.description.versionPublisher's Versionen_US
dc.relation.journalProceedings of the IEEE Ultrasonics Symposiumen_US
dc.contributor.departmentIşık Üniversitesi, Mühendislik Fakültesi, Elektrik-Elektronik Mühendisliği Bölümüen_US
dc.contributor.departmentIşık University, Faculty of Engineering, Department of Electrical-Electronics Engineeringen_US
dc.identifier.volume2
dc.identifier.startpage1875
dc.identifier.endpage1878
dc.peerreviewedYesen_US
dc.publicationstatusPublisheden_US
dc.relation.publicationcategoryKonferans Öğesi - Uluslararası - Kurum Öğretim Elemanıen_US
dc.contributor.institutionauthorKaraman, Mustafaen_US


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