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      Binary sequences with low aperiodic autocorrelation for synchronization purposes 

      Kocabaş, Ş. E.; Atalar, Abdullah (IEEE, 2003)
      An evolutionary algorithm is used to find three sets of binary sequences of length 49-100 suitable for the synchronization of digital communication systems. Optimization of the sets are done by taking into consideration ...
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      Power dissipation analysis in tapping-mode atomic force microscopy 

      Balantekin, M.; Atalar, Abdullah (American Physical Society, 2003)
      In a tapping-mode atomic force microscope, a power is dissipated in the sample during the imaging process. While the vibrating tip taps on the sample surface, some part of its energy is coupled to the sample. Too much ...
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      A new detection method for capacitive micromachine ultrasonic transducers 

      Ergun, A. S.; Temelkuran, B.; Özbay, Ekmel; Atalar, Abdullah (IEEE, 2001)
      Capacitive micromachine ultrasonic transducers (cMUT) have become an alternative to piezoelectric transducers in the past few years. They consist of many small circular membranes that are connected in parallel. In this ...
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      An optimized isolation network for the wilkinson divider 

      Tas, V.; Atalar, Abdullah (Institute of Electrical and Electronics Engineers, 2014-12)
      We propose an isolation network to simultaneously improve the input return loss, output return loss and isolation of the Wilkinson power divider in a wide bandwidth. The required even mode and odd mode reflection coefficients ...
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      Rayleigh-bloch waves in CMUT arrays 

      Atalar, Abdullah; Köymen, H.; Oğuz, H. K. (Institute of Electrical and Electronics Engineers Inc., 2014)
      Using the small-signal electrical equivalent circuit of a capacitive micromachined ultrasonic transducer (CMUT) cell, along with the self and mutual radiation impedances of such cells, we present a computationally efficient ...
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      A general purpose VLSI median filter and its applications for image processing 

      Karaman, Mustafa; Onural, Levent; Atalar, Abdullah (IEEE, 1989)
      A general-purpose median filter configuration consisting of two single-chip median filters is proposed. One of the chips is designed for applications requiring variable word-length and variable window size, whereas the ...
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      Characterization of layered materials by the lamb wave lens 

      Atalar, Abdullah; Köymen, Hayrettin; Değertekin, F. Levent (IEEE, 1990)
      The Lamb wave lens is a type of lens that can replace the conventional lens of an acoustic microscope for some applications. When it insonifies a layered solid structure, it excites a single mode in the structure, provided ...
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      Measurement of sensitivity of different wave modes to subsurface defects 

      Atalar, Abdullah; Köymen, Hayrettin; Yemişçiler, O. (IEEE, 1988)
      Excitation of acoustic wave modes in a layered solid is investigated when the solid is immersed in a liquid. This is done by computing the reflection coefficient of acoustic plane waves at the liquid-layered-solid interface. ...
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      A 128-bit microprocessor compatible programmable correlator chip for use in synchronous communication 

      Ungan, İ. Enis; Topçu, Satılmış; Atalar, Abdullah (IEEE, 1989)
      A single-chip microprocessor-compatible 128-b correlator is designed and implemented in a 3-μm M2CMOS process. Full-custom design techniques are applied to achieve the best tradeoff among chip size, speed, and power ...
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      Design and implementation of a general purpose VLSI median filter unit and its applications 

      Karaman, Mustafa; Onural, Levent; Atalar, Abdullah (IEEE, 1989)
      A VLSI median filter unit has been designed and implemented in 3-μ m M2 CMOS, using full-custom VLSI design techniques. The unit consists of two single-chip median filters, one extensible and one real-time. The chips are ...
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      Atalar, Abdullah (141)
      Köymen, Hayrettin (27)Quate, C. F. (17)Köymen, H. (15)Olcum, S. (13)Minne, S. C. (12)Bozkurt, A. (11)Manalis, S. R. (10)Khuri-Yakub, B. T. (8)Olcum, Selim (7)... View MoreKeywordsUltrasonic transducers (29)Capacitive micromachined ultrasonic transducer (17)Ultrasonics (15)Transducers (14)Radiation impedance (13)Bandwidth (9)Equivalent circuit model (9)Atomic force microscopy (8)Lenses (8)Natural frequencies (8)... View MoreDate Issued2010 - 2018 (42)2000 - 2009 (33)1990 - 1999 (53)1985 - 1989 (13)Has File(s)Yes (141)

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