Browsing Electrical and Computer Engineering, Department of by Title
Now showing items 231-250 of 355
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Novel Current Sensor-less MPPT Algorithm for Solar Applications
This thesis presents a novel Maximum Power Point Tracking (MPPT) technique for photovoltaic (PV) solar panels. The proposed method eliminates the need for current sensing by injecting high-frequency perturbations and ... -
Novel Digital Controller for Multi Full-Bridge DC/DC Converter
(2007-09-27)Distributed generation that utilizes 5-10kW Solid Oxide Fuel Cells requires power electronics to optimize the overall system efficiency while reducing the cost. The Adaptive Energy Zero-Voltage-Switching Phase-Shift-Modulated ... -
Novel Full Bridge Topologies for VRM Applications
(2008-02-28)Multi-phase Buck is widely used in Voltage Regulator Modules design because of its low cost and simplicity. But this topology also has a lot of drawbacks. One of the most fundamental drawback is that it has narrow duty ... -
Novel High Power Density Topologies and Control for the Point-of-Load (POL) Application
(2016-04-20)High performance microprocessors are promoting the development of modern electronic devices such as smart phones and tablets. These microprocessors have stricter requirement on the power supplies in terms of efficiency and ... -
Novel Methods in SEMG-Force Estimation
(2013-08-29)An accurate determination of muscle force is desired in many applications in different fields such as ergonomics, sports medicine, prosthetics, human-robot interaction and medical rehabilitation. Since individual muscle ... -
A Novel Modeling and State of Charge Estimation Scheme for Lithium-Ion Batteries
Lithium Ion (Li-Ion) batteries have got attention in recent decades because of their undisputable advantages over other types of batteries. They are used in so many our devices which we need in our daily life such as cell ... -
Novel robotic mechanisms for upper-limb rehabilitation and assessment
(2008-08-14)Robotic rehabilitation and assessment of the human upper-limb following stroke is currently limited in part by the inability of robots to replicate natural motion. In particular, motion of the shoulder girdle is usually ... -
A Novel Variable Inductor-Based VCO Design with 17% Frequency Tuning Range for IEEE 802.11AD Applications
(2014-01-23)This thesis focuses on the design and analysis of a novel variable inductor (VID) based VCO solution to the frequency tuning range (TR) limitation of the IEEE 802.11ad compliant radio systems. The IEEE 802.11ad standard ... -
Object Class Recognition using Global Shape Descriptors in 3D
(2014-07-22)We formulate Global Shape Descriptors for object classifi cation in range data. The goal of object class recognition is to identify and localize objects of interest in a 3D point cloud.This work focuses on the automatic ... -
Object Recognition by Registration of Repeatable 3D Interest Segments
(2015-02-04)3D object recognition using depth data remains a difficult problem in computer vision. In this thesis, an object recognition system based on registering repeatable 3D surface segments, termed recognition by registration ... -
Objective Assessment of Dysarthric Speech Intelligibility
(2011-09-28)The de-facto standard for dysarthric intelligibility assessment is a subjective intelligibility test, performed by an expert. Subjective tests are often costly, biased and inconsistent because of their perceptual nature. ... -
Offline Single-Stage Electrolytic-Capacitor-Free Flicker-Free High Power LED Driver
The use of white LED bulbs has increased exponentially in recent years because of their low energy consumption, long life time, high luminous efficacy and environmental friendly features. The illumination LED bulbs require ... -
On Cross-Layer Design of Distributed MIMO Spatial Multiplexing Compliant Wireless Ad hoc Networks
(2013-10-18)IEEE 802.11n Wireless Local Area Networks (WLANs) employ Multiple-Input-Multiple-Output (MIMO), which significantly boosts the raw data rate at the Physical layer (PHY). But the potential of enhancing Medium Access Control ... -
A One Shot Method For Estimating The Two Parameter Division Model Of Lens Radial Distortion Based On The Direct Linear Transformation
Many computer vision algorithms assume a pinhole camera model, but commercial and off-the-shelf cameras usually exhibit enough lens distortion to violate this model. There are many methods that have been proposed to estimate ... -
Operational Transconductance Amplifiers For Gigahertz Applications
(2008-09-19)A novel CMOS operational transconductance amplifier (OTA) is proposed and demonstrated in this thesis. Due to its feedforward-regulated cascode topology, it breaks the previous OTA frequency limit of several hundred MHz ... -
Optimal and Suboptimal Signal Detection-On the Relationship Between Estimation and Detection Theory
(2015-10-27)In this thesis, we consider a general binary and M-ary hypothesis testing problems with unknown parameters. In a hypothesis testing problem, we assume that the probability density function (pdf) of observation is given ... -
Optimal payoff to ensure opacity in Discrete-Event Systems
Opacity is a property of systems which guarantees that an outside observer cannot distinguish some behaviour of the system (secrets) from other behaviours (non-secrets). Many companies and government agencies like to make ... -
Optimization of a Generated Intrusion Detection System
As technology continues to evolve at a rapid pace, the opportunities for malicious attacks and vulnerabilities grows equally. Constant monitoring of networks is required to prevent attacks, even in networks without any ... -
Optimization of Rateless Code Based Video Multicast
(2011-12-23)Multimedia services have become one of the major demands in wireless systems. As a result of growing demands for media services, traffic in wireless networks are increasing. Hence, optimization of multimedia delivery systems ...