Yayın tarihi için Electrical  Electronic Engineering / Elektrik  Elektronik Mühendisliği listeleme
Toplam kayıt 297, listelenen: 120

Vector modal solution of evanescent coupler
(IEEE, 199712)We present a vector modal solution for the evanescent coupler comprising an optical fiber and a slab waveguide. We identify the normal vector ridge modes of the device for different configurations. The dispersion characteristics ... 
Calculation of the wavelength filter properties of the fiberslab waveguide structure using vector mode expansion
(IEEE, 199811)A vectorial solution technique is applied to investigate the dispersion characteristics of the ridge modes of a waveguide structure comprising a slab and optical fiber. The power transmission characteristics of the device ... 
New realization of Chua's circuit and verification of chaos by harmonic balance analysis
(Springer, 1999)Chua's circuit, which consists of two capacitors, one inductor, two resistors, one linear voltagecontrolled voltage source (VCVS) and voltagecontrolled current source (VCCS) type nonlinear element has been realized by ... 
Device length requirement in slab/fiber evanescent coupler
(Taylor & Francis, 2000)The effective device lengths of the fiber halfcoupler for various radii of curvatures was found. This calculated length was about a thousand times greater than that calculated by the model method. The device has enough ... 
On the splitting parameter in the Ewald method
(IEEE, 200005)An investigation of the Ewald method is presented. The method involves a splitting parameter that is theoretically an arbitrary number. An analysis is presented to show why the splitting parameter cannot always be treated ... 
The circuit implementation of a wavelet function approximator
(Kluwer Academic Publishers, 200208)This paper describes the analog synthesis of a wavelet function approximator using sigmoidal mother wavelet. Any finite energy multivariate function can be approximated by this analog circuit using the multiresolution ... 
Subspacebased frequency estimation of sinusoidal signals in alphastable noise
(Elsevier, 200212)In the frequency estimation of sinusoidal signals observed in impulsive noise environments, techniques based on Gaussian noise assumption are unsuccessful. One possible way to find better estimates is to model the noise ... 
An experimental work on optical component based on Dfiber/slab evanescent coupling structure
(Kluwer Academic Publishers, 200301)Fiber/slab coupler structure has been exploited as a passive inline optical fiber component for functions of filtering, intensity modulating and switching by many researchers. In this work a device based on the elliptic ... 
Steadystate analysis of nonlinearly coupled Chua's circuits with periodic input
(World Scientific Publishing, 200311)In this paper, nonlinearly coupled identical Chua's circuits, when driven by sinusoidal signal have been analyzed in the timedomain by using the steadystate analysis techniques of piecewiselinear dynamic systems. With ... 
Rank kestirim yöntemi kullanarak SVD tabanlı gürültü filtreleme
(IEEE, 2004)In this paper, an algorithm which performs the singular values decomposition of a noisy matrix has been presented in order to make noise reduction by rank estimation of the noise free data matrix. In this study the rank ... 
Taylor series approximation for low complexity semiblind best linear unbiased channel estimates for the general linear model with applications to DTV
(IEEE Computer Society, 2004)We present a low complexity approximate method for semiblind best linear unbiased estimation (BLUE) of a channel impulse response vector (CIR) for a communication system which utilizes a periodically transmitted training ... 
Breadth first algorithms for APP detectors over MIMO channels
(IEEE, 2004)For iterative decoding of multiple antenna systems concatenated with an outer error correcting code, it is important to use an a posteriori probability detector for the MIMO detection to achieve near capacity performance. ... 
Taylor series approximation of semiblind best linear unbiased channel estimates for the general linear model
(IEEE, 2004)We present a low complexity approximate method for semiblind best linear unbiased estimation (BLUE) of a channel impulse response vector (CIR) for a communication system, which utilizes a periodically transmitted training ... 
Approximate best linear unbiased channel estimation for multiantenna frequency selective channels with applications to digital TV systems
(SPIE, 2004)We provide an iterative and a noniterative channel impulse response (CIR) estimation algorithm for communication receivers with multipleantenna. Our algorithm is best suited for communication systems which utilize a ... 
Approximate best Linear unbiased channel estimation with CFAR detection for frequency selective sparse multipath channels with long delay spreads
(IEEE, 2005)We provide a noniterative channel impulse response (CIR) estimation algorithm for communication systems which utilize a periodically transmitted training sequence within a continuous stream of information symbols. The ... 
Pilotsymbolaided iterative channel estimation for OFDMbased systems
(IEEE, 2005)In this paper, we propose a pilotsymbolaided iterative channel estimation for coded OFDMbased systems. We use the symbol APP provided by the channel decoder to form groups of virtual pilots. According to their reliabilities, ... 
Removal of the phase noise in the autocorrelation estimates with data windowing
(IEEE, 2005)The sinusoidal frequency estimation from short data records based on Toeplitz autocorrelation (AC) matrix estimates suffer from phase noise. This effect becomes prominent especially when additive noise vanishes becoming a ... 
Approximate stationary density of the nonlinear dynamical systems excited with white noise
(Institute of Electrical and Electronics Engineers, 2005)In this paper, obtaining approximate solution of FokkerPlanckKolmogorov (FPK) Equation using compactly supported functions has been discussed. With specific choice of such functions as piecewise multivariable polynomials ... 
Determination of wavelet ridges of nonstationary signals by singular value decomposition
(Institute of Electrical and Electronics Engineers, 2005)The ridges obtained from chaotic signals can give the relevant information about the phase structures of the dynamical systems. Therefore, a new wavelet ridge determination method for the noisy signals and nonstationary ... 
Noise robust speaker verification using melfrequency discrete wavelet coefficients and parallel model compensation
(IEEE, 2005)Interfering noise severely degrades the performance of a speaker verification system. The Parallel Model Combination (PMC) technique is one of the most efficient techniques for dealing with such noise. Another method is ...