Browsing MF - Bildiri Koleksiyonu | Elektrik-Elektronik Mühendisliği Bölümü / Department of Electrical-Electronics Engineering by Title
Now showing items 5-24 of 184
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Achievable rates for the three user cooperative multiple access channel
(IEEE, 2008)For a three user Gaussian multiple access channel (MAC), we propose a new superposition block Markov encoding based cooperation scheme. Our scheme allows the three users to simultaneously cooperate both in pairs, and ... -
Achievable Rates for Two User Cooperative OFDMA
(IEEE, 2010)We propose two encoding strategies for a two user cooperative Orthogonal Frequency Division Multiple Access (OFDMA) system, based on block Markov superposition encoding. We obtain the expressions for the resulting achievable ... -
Algoritmik kaynaşım yöntemiyle plaka tanıma sistemlerinin performansının artırılması
(2011)Bu bildiride, bilgisayarlı görü ve örüntü tanıma alanlarında çok önemli bir yeri olan plaka tanıma sistemlerinin performansını artırmak amacıyla algoritmik kaynaşım yöntemini önermekteyiz. Plaka tanıma sistemleri genellikle ... -
An Analog beamformer for integrated high-frequency medical ultrasound imaging
(IEEE, 2011-11-10)We designed and fabricated a dynamic receive beamforming integrated circuit (IC) in 0.35-mu m CMOS technology. This beamformer is suitable for integration with an ultrasound annular array for high-frequency (30-50 MHz) ... -
Analysis of layered media terminated with an impedance surface varying in lateral directions
(SPRINGER-VERLAG BERLIN, 2000)Determination of the constitutive parameters of a region from data provided by remote sensing is an extremely interesting and important topic from various points of view. In a large class of problems of this type, the ... -
Analysis of self noise in a clock recovery systems with a high-order nonlinearity
(IEEE, 1998-06-07)This paper presents a new technique to compute efficiently the I and Q spectra, and the I - Q cross-spectrum of the self noise appearing at the output of the zero-memory, high order nonlinear device employed in a clock ... -
Analysis of self noise in a clock recovery systems with a high-order nonlinearity
(Bogazici University Bbebek Faculty Engineering Dept Civil Engineering, 1999-06-20)This paper presents a new technique to compute efficiently the I and Q spectra, and the I - Q cross-spectrum of the self noise appearing at the output of the zero-memory, high order nonlinear device employed in a clock ... -
An analysis of the mortgage account as a discrete-time LTI system
(IEEE, 2014-01-01)This paper presents a comprehensive mathematical analysis of the mortgage account with the aim of intentionally setting up a non-physical example for the teaching of discrete-time LTI systems in the courses signals and ... -
An annular CMUT array beamforming system for high-frequency side looking IVUS imaging
(2010)A CMUT annular array system for Side-Looking Intravascular Ultrasound (SL-IVUS) with fixed transmit and dynamic receive focusing capabilities has been developed. The system was experimentally characterized and validated ... -
Battle Damage Assessment based on self-similarity and contextual modeling of buildings in dense urban areas
(IEEE, 2016)Assessment of battle damages is significant both for tactical planning and for after-war relief efforts. In this study damaged buildings are detected using self-similarity descriptor in pre- and post-war satellite images. ... -
Bir otomatik hedef tanıma algoritmasının geliştirilmesi
(IEEE, 2013-04-24)Bu bildiri kapsamında bir Otomatik Hedef Tanıma (OHT) sistemi ele alınarak geliştirilmiş ve geliştirilen sistemin Matlab benzetimleri bildiride sunulmuştur. İkinci olarak OHT sistemlerinde kullanılan ve literatürde sıkça ... -
A bit-serial sum of absolute difference accelerator for variable block size motion estimation of H.264
(IEEE, 2009-07-25)Bit-serial architectures offer a number of attractive features over their bit-parallel counterparts such as smaller area cost, lower density interconnection, a reduced number of pins, higher clock frequency, simpler routing ... -
Blind channel estimation for space-time coding systems with Baum-Welch algorithm
(IEEE, 2002)In recent years, space-time coding is proposed to provide significant capacity gains over the traditional communication systems in fading wireless channels. In this paper, we consider the problem of blind estimation of the ... -
A broadband microwave amplifier design by means of immittance based data modelling tool
(IEEE, 2002)In this paper a practical broadband microwave amplifier design algorithm is introduced utilizing the immittance data-modelling tool. In the course of design, first, the optimum input and output terminations for the active ... -
Cascade synthesis of two-variable lossless two-port networks with lumped elements and transmission lines: A semi-analytic procedure
(TAYLOR & FRANCIS LTD, 2001)Two-variable characterization of cascades composed of lossless two-port networks with lumped elements and transmission lines is considered. The problems associated with the construction of scattering functions in two ... -
Channel adaptive encoding and decoding strategies and rate regions for the three user cooperative multiple access channel
(IEEE, 2008)For a cooperative Gaussian multiple access channel (MAC), we propose a new channel adaptive three user cooperation strategy, based on a non-trivial extension of block Markov super-position encoding. We obtain the expressions ... -
Channel estimation for space-time block coded OFDM systems in the presence of multipath fading
(IEEE, 2002)In this paper, a computationally efficient, non-data-aided maximum a posterlori(MAP) channel estimation algorithm is proposed for orthogonal frequency division multiplexing (OFDM) systems with transmitter diversity using ... -
CIM a current inverting metamutator and its application to universal filters among others
(IEEE, 2017)A new kind of metamutator namely "Current Inverting Metamutator," its realizations using different types of active blocks and some of its applications are given in this paper. As a classical application of the metamutator ... -
Circuit model for given reflectance data constructed with mixed lumped and distributed elements for high speed/high frequency communication systems
(IEEE, 2005)In this paper, a reflectance-based "non linear interpolation method" is presented to model the measured or computed data, obtained from a "passive one-port physical device" using mixed lumped and distributed elements. Mixed ... -
CMOS high-performance UWB active inductor circuit
(Institute of Electrical and Electronics Engineers Inc., 2016-07-22)In order to maximize efficiency of the designed gyrator-based active inductor, advanced circuit techniques are used. Loss and noise are most important features of the AIs, where they should be low enough to have high-performance ...
