Yayın tarihi için MF  Makale Koleksiyonu  ElektrikElektronik Mühendisliği Bölümü / Department of ElectricalElectronics Engineering listeleme
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Feature extraction in shape recognition using segmentation of the boundary curve
(ELSEVIER SCIENCE BV, 199710)We present a new method for feature extraction of twodimensional shape information based on segmentation of the boundary curve. This approach partitions closed shapes into segments and finds their angular spans. The number ... 
Adaptive identification and equalization of magnetic recording channels
(ASSOC ELETTROTECNICA ED ELETTRONICA ITALIANAWiley, 199803)A new RLS adaptive Volterra filter is presented. The nonlinear filtering problem is transformed into an equivalent multichannel, but linear, filtering problem. The multichannel input signal is completely orthogonalized ... 
On the kinematic of a 3DOF Stewart platform
(JOHN WILEY & SONS INC., 199902)The kinematic behavior of the Stewart platform has been discussed in the literature by many researchers. In the present article, a special form of the Stewart platform, namely, the 3degrees of freedom platform with ... 
Scattering of electromagnetic waves by a rectangular impedance cylinder
(Elsevier Science, 200004)A uniformly valid asymptotic solution is developed for the diffraction of a highfrequency wave by an infinitely long rectangular cylinder having different impedance walls. The incident wave is generated by a line source ... 
Confluent edge conditions for the electromagnetic wave at the edge of a wedge bounded by material sheets
(Elsevier Science, 200007)The edge conditions which dictate the asymptotic behaviour of the electromagnetic field near the edges play a crucial role in solving boundaryvalue problems involving boundaries having edges. In analytical studies they ... 
A generalization of the WienerHopf approach to direct and inverse scattering problems connected with nonhomogeneous halfspaces bounded by npart boundaries
(Oxford Univ Press, 200008)The classical WienerHopf method connected with mixed twopart boundaryvalue problems is generalized to cover npart boundaries. To this end one starts from an adhoc representation for the Green function, which involves ... 
An immitance based tool for modelling passive oneport devices by means of darlington equivalents
(Urban & Fischer Verlag, 2001)An immitancebased method is presented to model measured or computed data, obtained from a "passive oneport physical device" by means of its Darlington equivalent. In other words, the given data is modelled as a lossless ... 
A real frequency approach to describe lossless twoports formed with mixed lumped and distributed elements
(Urban & Fischer Verlag, 2001)The design of microwave filters, matching networks, amplifiers, that Is the "Broadband Networks" with mixed lossless lumped and distributed elements, has been a significant concern of the circuit theoreticians of the field. ... 
On the performance of trellis coded MPSK systems over Rician fading channels with phase jitter
(Assoc Elettrotecnica Ed Elettronica Italiana, 200102)In this paper, the performance of trellis coded MPSK systems is investigated operating over Rician fading channels with phase jitter. Thus the results reflect not only the degradation due to the effect of fading on the ... 
Nondataaided ML carrier frequency and phase synchronization in OFDM systems
(Assoc Elettrotecnica Ed Elettronica Italiana, 200104)In this paper nondataaided(NDA), maximum likelihood(ML) algorithms are derived for the carrier frequency and phase offset, separately, for OFDM systems employing MPSK modulation scheme. NDA ML estimation algorithm for ... 
A new method for the source localization in sectionally homogeneous bounded domains involving finitely many inner interfaces of arbitrary shapes
(PergamonElsevier Science, 200105)A new method to localize a static point source buried in a nonhomogeneous bounded domain composed of finitely many homogeneous parts separated by interfaces of arbitrary shapes was established. The source can be a simple ... 
Maximum likelihood blind channel estimation for spacetime coding systems
(Hindawi Publishing Corporation, 200205)Sophisticated signal processing techniques have to be developed for capacity enhancement of future wireless communication systems, In recent years, spacetime coding is proposed to provide significant capacity gains over ... 
Maximum a posteriori multipath fading channel estimation for OFDM systems
(Assoc Elettrotecnica ed Elettronica Italiana, 200210)In this paper, a nondataaided maximum a posteriori (MAP) channel estimation technique for OFDM systems employing MPSK modulation scheme is proposed. The technique requires a convenient representation of the discrete ... 
Sequence estimation with transmit diversity for wireless communications
(Urban & Fischer Verlag, 2003)In this paper, an optimum sequence estimation algorithm for wireless systems with Alamouti's two transmitter diversity in the presence of multipath fading is proposed. The algorithm is based on a jointly iterative channel ... 
Joint channel tracking and symbol detection for OFDM systems with Kalman filtering
(Urban & Fischer Verlag, 2003)This paper proposes a new joint channel tracking and symbol detection scheme for pilot symbolassisted OFDM systems in multipath fading. The proposed scheme uses Kalman filters for both channel tracking and subsequent ... 
Postprocessing of decoded color images by adaptive linear filtering
(Elsevier Science, 200302)This paper presents an image adaptive linear filtering method for the reconstruction of the RGB (red, blue, green) color coordinates of a pixel from the lossy compressed luminance/chrominance color coordinates. In the ... 
Classificationbased macroblock layer rate control for low delay transmission of H.263 video
(IS & T  Soc Imaging Science Technology, 200307)Puri and Aravind's method of macroblock bit count estimation for video rate control is based on the classification of the macroblock data into discrete classes and assigning a unique nonlinear estimate for each class and ... 
Confluent tip singularity of the electromagnetic field at the apex of a material cone
(Elsevier Science, 200309)The tip singularity of the electromagnetic field at the apex of a cone (conical sheet) is investigated in its most general framework. To this end one considers, without loss of generality, a circularly symmetric cone which ... 
Significance map pruning and other enhancements to SPIHT image coding algorithm
(Elsevier Science, 200310)This paper proposes several enhancements to the Set Partitioning in Hierarchical Trees (SPIHT) image coding algorithm without changing the original algorithm's general skeleton. First and foremost, a method for significance ... 
Volumetric ultrasound Imaging using 2D CMUT arrays
(IEEEInst Electrical Electronics Engineers Inc., 200311)Recently, capacitive micromachined ultrasonic transducers (CMUTs) have emerged as a candidate to overcome the difficulties in the realization of 2D arrays for realtime 3D imaging. In this paper, we present the first ...