Browsing Dissertations & Theses by Title
Now showing items 450-469 of 608
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Physics Behind RFID Smart Card Security In Context Of Privacy
(Electrical Engineering, 2010-07-19)In this thesis I prove that existing HF protocol is not secure. Lack of security in turn leads to violation of privacy.The unique ID on the HF RFID smart card can be sniffed by any eavesdropper. Not only eavesdropping, but ... -
Physiological Telemetric Sensing Systems For Medical Applications
(Electrical Engineering, 2012-04-11)A batteryless, wireless, sensing system, suitable for biomedical applications, was studied in this dissertation. The sensing system contains a reader and a transponder and the working principle is based on passive RFID ... -
A Piecewise Linear Classifier
(Electrical Engineering, 2007-08-23)A piecewise linear network is discussed which classifies N-dimensional input vectors. The network uses a distance measure to assign incoming input vectors to an appropriate cluster. Each cluster has a linear classifier for ... -
Pilot Based Channel Estimation For 3GPP LTE downlink
(Electrical Engineering, 2012-04-11)Channel estimation is an important part for the design of receivers in mobile communication systems. In order to recover the transmitted information correctly, the effect of the channel on the transmitted signal must be ... -
A Planar And Integrated Rectenna For Wireless Power Reception
(Electrical Engineering, 2011-07-14)In this thesis, a rectenna ("rectifier + antenna") for wireless power reception is designed and experimentally verified. The rectenna consists of two major components: one is a microstrip patch antenna and the other is a ... -
A Planar Cavity Backed Slot Antenna Array For Ultra-wideband Monopulse Radars
(Electrical Engineering, 2010-07-19)In this thesis, a wideband cavity backed slot antenna is designed for automotive-borne monopulse radar applications. A rectangular slot is used to realize broad bandwidth; the slot is backed by a cavity and vertical walls ... -
The PMU-based Parameter Identification For Synchronous Generator Dynamic Model
(Electrical Engineering, 2012-04-11)Power systems have become more complex and are found to be consistently operating closer to their stability limits under the deregulated environment. Power system dynamic simulation, which provides significant insight into ... -
Polymer-based RF MEMS Devices
(Electrical Engineering, 2007-09-17)The radio frequency micro-electro-mechanical system (RF MEMS) technology is rapidly transitioning from the research stage to commercial applications. Reducing material and fabrication costs, realizing IC compatibility, and ... -
Portable And Miniature Imaging System For In-vivo Fluorescence /luminescence Analysis
(Electrical Engineering, 2014-07-14)For fluorescence and bioluminescence in vivo imaging systems, the current commercial product is limited by huge bulk and a constant working environment. In this thesis, we proposed and investigated a compact and portable ... -
A Portable Biotelemeter For Batteryless GERD Sensors
(Electrical Engineering, 2010-03-03)In many medical problems, a continuous monitoring of the disease in vivo is essential to prevent further deterioration of health. The monitoring usually exceeds 24 hours. With the help of current advanced technologies, ... -
Position Sensorless Control Of A Magnetically Levitated (Maglev) System
(Electrical Engineering, 2011-03-03)The main focus of this investigation is the development and implementation of a sensorless position estimation method and hysteresis position controller for a laboratory-based Maglev system. The proposed estimation method ... -
A Potential Field Approach For Distributed Control Of Discrete Actuator And Sensor Arrays
(Electrical Engineering, 2008-04-22)This dissertation presents new methods of distributed sensing, classification and actuation using potential field and neural network approaches. Human look-a-like robot serves as an excellent tool to implement the strategies ... -
A Potential Field Approach To Multiple Robot Formation Control
(Electrical Engineering, 2007-09-17)A special case of cooperative control for mobile robots is considered - formation control. A potential field based algorithm is developed in which geometric, communication and information centric influences are considered ... -
POWER ALLOCATION AND MASSIVE MIMO CHANNEL MODELING FOR 5G WIRELESS COMMUNICATIONS
(2022-05-11)To meet the demand for wireless communication transmission rate to reach a thousand times of the existing system in 2021, the fifth-generation (5G) mobile communication system was developed. Compared with Long-Term Evolution ... -
Power Control And Multi-target Identification In Cognitive Wireless Networks
(Electrical Engineering, 2007-09-17)Recent research results have shown that cognitive wireless networks (CWN) have the potential to alleviate spectrum scarcity problem resulting from current policies for radio resource allocation management and dramatically ... -
Power Management Integrated Circuits Design, Functionality Analysis And Applications
(Electrical Engineering, 2007-08-23)Power management is playing a significant role in modern electronics. Good power management is especially important for portable devices that rely on batteries. By smartly managing how the power is directed to different ... -
Power-Derived Thermal Characterization of SiGe HBTs and Design of Timing Circuit using a Phase Locked-Loop
(2016-05-24)Silicon Germanium (SiGe) hetero-junction bipolar transistors (HBTs) have been designed to cater the demand of high speed circuits having speed applications in wireless, optical communication and space electronics. Due to ... -
Practical Evaluation and Analysis Of Passive UHF RFID Tags
(Electrical Engineering, 2008-08-08)In this thesis, we have identified the important parameters that impact the performance of passive UHF RFID tags and developed a testing methodology to evaluate and characterize tags. We have also developed the theory to ... -
Precision And Mobility Analysis For Microrobot Design And Control
(Electrical Engineering, 2013-03-20)The emerging field of microrobotics extends from manipulation of nanostructures to 3D assembly of micromachines, and to control of motile bacteria as manipulation tools. Microrobots are not necessarily small themselves but ... -
Predition Of Torque And Radial Forces In Permanent Magnet Synchronous Machines Using Field Reconstruction Method
(Electrical Engineering, 2010-11-01)Due to their high torque-to-loss ratio, permanent magnet synchronous machines (PMSM) have received increasing attention in automotive applications over the past decade. Because of this unique characteristics, many applications ...