Browsing by Department "Electrical and Computer Engineering"
Now showing items 161-180 of 281
MEMS and Additively Manufactured Micro-Mechanical Isolator
(2020-07-14)
The purpose of the research effort was the development and evaluation of mechanical
isolators. Some MEMS sensors have a known vulnerability to high frequency vibrations in various
environments. The nature of the ...
MEMS Based Tunable Microstrip Patch Antenna Fabricated Using Printed Circuit Processing Techniques
(2006-08-15)
This thesis presents MEMS-based electrostatically tunable microstrip patch antennas fabricated using printed circuit processing techniques. The microstrip patch is patterned on the top side of a flexible kapton polyimide ...
Methods for Improving Visual Terrain Relative Navigation for Dynamic Aerial Systems
(2021-04-26)
One popular means of aerial localization and navigation in GPS-denied environments is visual terrain relative navigation. Terrain relative navigation involves performing image registration with sensed aerial camera imagery ...
Mextram Model Development for Improved Distortion Modeling of SiGe HBTs
(2019-12-09)
Linearity of SiGe HBTs has been widely studied nowadays. The accuracy on modeling of the third order intercept point (IP3) always puts strict requirements on compact models that can reproduce measured IP3 characteristics ...
Microcontroller-Based Current-Mode Control for Power Converters
(2005-12-15)
Presented in this dissertation is the implementation of microcontroller-based digital current-mode control (CMC) switch-mode power converters. A hybrid control method is proposed. By using on-board analog peripherals on ...
Microfabricated Electrode Arrays Suitable for Stimulation and Recording in Cardiac Electrophysiological Studies
(2008-05-15)
Sudden cardiac arrest (SCA) caused by ventricular fibrillation is one of the most serious heart related problems in the United States today which is responsible for hundreds of thousands of deaths per year. The goal of ...
Micromachined Isolators for Shock and Vibration Reliability of MEMS Sensors: Fabrication, Damping, and Integration
(2020-11-20)
This dissertation details the design, FEA simulation, fabrication, and testing of three variations of micromachined vibration isolators (MVIs). The vibration isolators serve as low pass filters to attenuate high frequency ...
Minimizing N-Detect Tests for Combinational Circuits
(2007-05-15)
An N-detect test set detects each stuck-at fault by at least N different vectors. N-detect tests are of practical interest because of their ability to improve the defect coverage. The main problem that limits their use is ...
Mobile Robot for Retail Inventory Using RFID
(2016-12-09)
The use of RFID technology is increasing in retail stores, because it improves the performance of automated checkout, inventory and theft detection systems. In this dissertation, we present a novel implementation of a ...
Modeling a Fuel Cell System for Residential Dwellings
(2006-05-15)
Fuel cells produce electricity by combining hydrogen and oxygen to form water. Fuel cells have unique electrical characteristics and performances that warrant examination and discussion. From the hydrogen source to the ...
Modeling and Optimization of Electron-Beam Lithographic Process
(2021-07-15)
An important issue in electron-beam (e-beam) lithography is to minimize the critical dimension (CD) error and line edge roughness (LER). This dissertation presents a method to measure the CD and LER from scanning electron ...
Modeling and Scaling Limitations of SiGe HBT Low-Frequency Noise and Oscillator Phase Noise
(2006-08-15)
This dissertation presents modeling of SiGe HBT low-frequency noise and oscillator phase noise, and examines their limitations posed by technology scaling. A new method of extracting low-frequency noise, inverse circuit ...
Modeling of Third-order Distortion in Common-Emitter SiGe HBTs Using Mextram 505.00
(2018-06-26)
Mextram is an advanced compact model for bipolar transistors. Mextram 504.12 does
not provide a good OIP3 simulation near peak OIP3. Mextram 505.00 improves peak OIP3
by modifying intrinsic base-collector depletion ...
Multi-phase Clock Generation Techniques Based on Coupled Oscillators
(2017-11-20)
This dissertation presents high-performance coupled-oscillator systems based on the LC oscillator, and covers both the theoretical analysis and the implementation. To that end, it starts with the introduction of both the ...
Neural correlates of emotions in dogs
(2018-04-24)
Dogs are considered to be man’s best friend; they share a close and intense relationship with humans and have shown to excel in reading human social cues, including facial cues. Due to this intimate relationship shared ...
Neural Network Based Gesture Recognition Robot
(2017-11-30)
Autonomous mobile robots (ARM’s) are defined by their ability to perform some tasks independently from direct human interaction. However, interaction with humans at some point is necessary. There are some situations in ...
Neuro-Fuzzy System with Increased Accuracy Suitable for Hardware Implementation
(2009-05-15)
Fuzzy controllers are easy to design for complex control surfaces but produce rough control surfaces which might lead to unstable operation. On the other hand neural controllers are hard and complex to train but they produce ...
Neuromorphic Computing Based on Superconductive Quantum Phase-Slip Junctions
(2021-11-29)
Superconductive electronics that exhibit ultra-low power consumption and high speed are good candidates for neuromorphic computing, which aims to emulate the human brain, as CMOS-based systems are approaching the bottleneck ...
A New Procedure for Allocating Voltage Fluctuation Limits in Power Systems
(2016-12-19)
Procedures for determining the requirements for the connection of fluctuating installations in MV, HV, and EHV power systems are provided in IEC Technical Report 61000-3-7. The objective is to provide guidance to system ...
Node Placement, Routing and Localization Algorithms for Heterogeneous Wireless Sensor Networks
(2008-05-15)
Wireless sensor network is a very promising technology for many
military and civilian applications. The network usually consists
large number of nodes and many existing network techonlogies can
not be used directly in ...