Güncel Gönderiler: Elektrik ve Elektronik Mühendisliği Bölümü
Toplam kayıt 552, listelenen: 321-340
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Comparison of PI controllers designed for the delay model of TCP/AQM networks
(Elsevier Science BV, 2013)One of the major problems of communication networks is congestion. In order to address this problem in TCP/IP networks, Active Queue Management (AQM) scheme is recommended. AQM aims to minimize the congestion by regulating ... -
Evaluating and Approximating FIR Filters: An Approach Based on Functions of Matrices
(IEEE-Inst Electrical Electronics Engineers Inc, 2015)Most of the controllers designed for systems with timedelays involve finite impulse response (FIR) filters in their structure, in particular prediction based controllers for systems with input/output delays. We present ... -
Contactless Respiration Rate Estimation Using MUSIC Algorithm
(IEEE, 2017)In some diseases (sleep apnea, sudden infant death syndrome etc.), continuous monitoring of respiration rate of patient at home during sleep is critically important. Nowadays wireless communications signals are widely used ... -
An H-infinity and Skyhook Controller Design for a High Speed Railway Vehicle
(Elsevier Science BV, 2018)The electronic-based recently developed railway vehicles compromising at high speeds by consuming eco-friendly energy and providing better transportation facilities without complicating the car designs. In this study, the ... -
Track Modelling and Control of a Railway Vehicle
(Elsevier Science BV, 2016)In this paper, a railway vehicle AM96 train developed by Bombardier, Belgium is represented as a half-car model. First, random road defect inputs are modelled as track class 6 from Federal Railroad Administration (FRA) ... -
Effect of Multi-Objective Control on Ride Quality in High Speed Railway Vehicle
(Elsevier Science BV, 2016)The railway transportation has a significant impact on both the freight and passenger carriage, therefore it should provide a comfortable, safe, fast and inexpensive riding. In this paper, a six-degree-of-freedom half-car ... -
Influence of Wheel-Rail Contact Stiffness on the H-2 Controlled Active Suspension Design
(Elsevier Science BV, 2017)In this work, the mathemtical model of a railway passenger car with conventional and radial-elastic wheels is analyzed. Stochastic excitations are applied to the wheelsets. The local elasticity between the wheel and the ... -
Road Profile Modeling by Subspace Identification Methods
(IEEE, 2015)In this paper, spectral models of road profiles using nonparametric and subspace identification methods are developed from road elevation measurements. First, power spectra of road profiles are estimated on uniform grids ... -
Rail Track Modelling by Using Identification and Curve Fitting Techniques
(IEEE, 2018)In this paper, a seventeen-degree-of-freedom full-car model of a high speed railway vehicle excited by real track profile is going to be studied. The field measurements are collected by Turkish State Railways (TCDD) on a ... -
Spectral Modeling of Longitudinal Road Profiles
(IEEE, 2015)In this paper, for a quarter-car model, we derive covariance expressions for the MIRA spectrum and calculate the root-mean square outputs for the ISO 8608 classified roads. The derived results are compared with existing ... -
Stochastic Models for Parallel Road Tracks
(IEEE, 2016)In this paper, we propose a method for constructing road roughness on parallel tracks. This method uses empirical power spectral densities and coherence of the left and the right-tracks estimated by non-parametric methods. ... -
Aspects of achievable performance for quarter-car active suspensions
(Academic Press LTD- Elsevier Science LTD, 2008)In this paper, constraints on the transfer functions from the road disturbance to the vertical acceleration, the suspension travel, and the tire deflection are derived for a quarter-car active suspension system using the ... -
Circular Uncertainty method for range-only localization with imprecise sensor positions
(Springer, 2018)This study provides an effective new method to solve the range-only localization in the presence of sensor position errors. In practice, the sensors can stay only within a limited region whereas the target can be far from ... -
A geometrical closed form solution for RSS based far-field localization: Direction of Exponent Uncertainty
(Springer, 2019)In this study, a new powerful geometrical closed-form solution called Direction of Exponent Uncertainty (DEU) is proposed for received signal strength (RSS) based far-field localization when path loss exponent (PLE) and ... -
Fixed-Order Controller Design for a High Speed Railway Vehicle
(Amer Soc Mechanical Engineers, 2017)Advanced active suspension systems has attracted considerable attention in modern railway vehicle designs in recent years. The purpose of the suspension is to attenuate the vehicle vibrations due to various rail excitations. ... -
A Survey on the Fundamentals of RSS based Localization
(IEEE, 2016)In this research, for RSS based localization, geometry based new heuristic solutions are proposed and compared to maximum likelihood estimation (MLE) in terms of performance. It is shown that new heuristic methods which ... -
RSS Based Direction Finding via Array of Directional Antennas with Normal Density Distribution in Magnitude
(IEEE, 2017)In this study, the theoretical framework of received signal strength (RSS) based direction finding with array of directional antennas with normal density distribution in magnitude are established. Directional antenna systems ... -
Utilization of non-causal uncertainty blocks in the robust flow controller design problem for data-communication networks
(IEEE, 2008)Robust How controller design problem for data-communication networks with multiple uncertain time-delays is considered. A recent result on the validity of the small gain theorem for systems with non-causal subsystems is ... -
Modelling of road roughness for full-car models: a spectral factorization approach
(IEEE, 2016)In this paper, we study modelling of road roughness for full-car models from power spectrum and coherence measurements of parallel tracks. The modelling problem is cast as a spectral factorization problem and solved via ... -
Multi-objective control of a full-car model using linear-matrix-inequalities and fixed-order optimisation
(Taylor & Francis LTD, 2014)This paper studies multi-objective control of a full-vehicle suspension excited by random road disturbances. The control problem is first formulated as a mixed H-2/H synthesis problem and an output-feedback solution is ...
