Browsing Theses - Department of Electrical and Electronics Engineering by Issue Date
Now showing items 1-20 of 724
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Stabilization of multivariable systems with constrained control structure
(Bilkent University, 1988)The following problem is considered: Given a multivariable system with m inputs and r outputs and an m x r matrix whose nonnegative (i,j)’th element represents the cost of setting up a feedback link from the j ’th output ... -
Design and implementation of a general purpose median filter unit in VLSI
(Bilkent University, 1988-10)The median of a group, containing an odd number of elements, is defined as the middle element, when the elements of the group are sorted. A median filter finds the median of a number of elements at its inputs. Median filters ... -
VLSI implementation of a microprocessor compatible 128-bit programmable correlator
(Bilkent University, 1989) -
Exact and approximate decoupling and noninteracting control problems
(Bilkent University, 1989)In this thesis, we consider “exact” and “approximate” versions of the disturbance decoupling problem and the noninteracting control problem for linear, time-invariant systems. In the exact versions of these problems, we ... -
Structural analysis of pole assignment and stabilization in dynamic systems
(Bilkent University, 1989)Motivated by the need for qualitative investigation of general system properties such as controllability, obser\^bility, existence of fixed modes, etc. as the complement of the quantitative approach in analysis, ... -
Design and testing of a microprocessor compatible 128-bit correlator chip
(Bilkent University, 1989) -
An Automated rule based visual printed circuit board inspection system which uses mathematical morphological image processing algorithms
(Bilkent University, 1990)In this thesis, the design and implementation of an automated rule based visual printed circuit board (PCB) inspection system are presented. The developed system makes use of mathematical morphology based image processing ... -
The Examination of the effect of polarization on the radiation losses of bent optical fibers
(Bilkent University, 1990)It has long been recognized that the bending losses in weakly guiding optical fibers, is independent of the polarization for large bend radius. We showed this fact using the volume equivalent current method. The procedure ... -
3-dimensional median-based algorithms in image sequence processing
(Bilkent University, 1990)This thesis introduces new 3-dimensional median-based algorithms to be used in two of the main research areas in image sequence proc(',ssi,ng; image sequence enhancement and image sequence coding. Two new nonlinear filters ... -
A method for extracting object related information from in-line holograms using Wigner distribution
(Bilkent University, 1990)In this thesis, a method based on Wigner distribution is developed to find the three-dimensional coordinates of particles directly from their in-line hologram without reconstruction. If a one-dimensional discrete hologram ... -
Capacity of noisy, discrete memoryless channels under input constraints
(Bilkent University, 1990)In this thesis work, we examine the capacity of discrete memoryless channels under input constraints. We consider a certain class of input-restricted channels for which constrained sequences can be modeled as outputs of ... -
Cutoff rate for fixed-composition coding over energy constrained AWGN channels
(Bilkent University, 1990)Shannon showed that, under an energy constraint, the ensemble of shell constrained codes optimizes the cutoff rate for AVVGN channels. Unfortunately, this ensemble is not very practical since its input alphabet is the ... -
BUSTLE: a new circuit simulation tool using asymptotic waveform evaluation and piece-wise linear approach
(Bilkent University, 1990)BUSTLE, a new general purpose circuit simulation program is developed especially for the analysis of VLSI circuits. BUSTLE uses Asymptotic Waveform Evaluation (AWE), which is a new method to analyze linear(ized) ... -
Stability robustness analysis of linear systems
(Bilkent University, 1990)In this thesis, robustness of stability of linear, time-invariant, continuousand discrete-time systems is investigated. Only state-space models and additive perturbations are considered. Existing results concerning ... -
Simulation of a holographic 3-D television display
(Bilkent University, 1990)The theory and the computer simulations of an acousto-optical holographic 3-D television display are presented in this dissertation. The technique used is based on the reproduction of the desired pattern, in our case the ... -
Generation and parameter estimation of Markov random field textures and a parallel network for texture generation
(Bilkent University, 1990)In this thesis, a special class of Markov random fields (MRF), which is defined on two dimensional pixel arrays and represented by a few numbers called the MRF parameters, is studied as a texture model. Specifically, the ... -
Cutoff rate for fixed-composition on-off keying over direct detection photon channels
(Bilkent University, 1990)In this thesis, we consider direct detection photon channel with peak and average power constraints. This channel is modelled as a binary input discrete memoryless channel. We study the cutoff rate for different modulation ... -
Robust sampled data control
(Bilkent University, 1990)Robust control of uncertain plants is a major area of interest in control theory. In this thesis, robust stabilization of plants under a class of structural perturbations using sampled-data controllers is considered. It ... -
BUSTLE, a new circuit simulation tool
(Bilkent University, 1990)A new circuit simulation tool, BUSTLE, using Asymptotic Waveform Evaluation (AWE) technique and Piece-wise Linear (PW L) models, is implemented. The results are very promising, especially for large circuits. This piece ... -
Ripple-free deadbeat control of sampled-data systems
(Bilkent University, 1990)In this thesis, we consider the ripple-free deadbeat control problem for linear, multivariable sampled-data systems represented by state-space models. Existing results concerning the deadbeat/ripple-free deadbeat regulation ...
