Browsing Auburn Theses and Dissertations by Department "Electrical Engineering"
Now showing items 141-160 of 278
Hybrid Learning of Feedforward Neural Networks for Regression Problems
(2014-12-12)
Inspired by the structure and functional aspects of the biological neural networks, the Artificial Neural Network (ANN) is a very popular model in the machine learning fields to
learn complex relationships in the data. ...
Identification of Individual Contributions to Total Flicker Levels in Electric Power Systems
(2010-04-02)
Total flicker levels in an electric power system can be contributed to from multiple sources of flicker. Methodologies for allocating portions of this total flicker level to the responsible loads are studied. The representation ...
Impact of Charge Collection Mechanisms on Single Event Effects in SiGe HBT Circuits
(2009-07-17)
Investigations into single event effect (SEE)
induced charge collection in
Silicon Germanium (SiGe) heterojunction
bipolar transistors (HBT)
are made through three-dimensional (3-D) device simulation.
The transistor ...
Impact of Correlated RF Noise on SiGe HBT Noise Parameters and LNA Design Implications
(2013-11-08)
This work presents analytical models of SiGe HBT and LNA noise parameters accounting for high frequency noise correlation. The models are verified using measurement data and circuit simulation. The impact of noise correlation ...
Improved Nelder Mead’s Simplex Method and Applications
(2012-03-27)
Derivative free optimization algorithms are often used when it is difficult to find function derivatives, or if finding such derivatives are time consuming. The Nelder Mead’s simplex method is one of the most popular ...
Integrated Circuit Design for Ultrahigh Speed Frequency Synthesis: Direct Digital Synthesizer and Variable Frequency Oscillator
(2010-05-05)
This dissertation presents design and implementation of the high speed direct digital frequency synthesizer (DDS) and variable-frequency oscillator (VFO). DDS is a digital technique for frequency synthesis, waveform ...
Integrated EEG Acquisition System for MRI Electromagnetic Environment Applications
(2015-07-27)
From detail analysis on origins of artifacts which influences EEG signal quality and compared with traditional simultaneous MRI/EEG acquiring system [3], an in-bore MRI electromagnetic environment compatible EEG signal ...
Interference Management and Exploitation in Emerging Wireless Networks
(2015-04-29)
In the past decade, with the prevalence of smart phones, the main use of cellphones has been
shifted from phone call to multimedia access. This paradigm shift has resulted in the demand for
higher and higher transmission ...
Internet Data Acquisition, Search and Processing
(2009-12-11)
Internet data acquisition from the Web is the process of extracting essential data from any web server. Semi-structured data present in the form of HTML web pages need to be extracted, converted into structured data before ...
Intrusion Resilient and Real-Time Forensics
(2011-12-05)
Intrusion to corporate network and unauthorized access to sensitive information can cause huge damage and intellectual property loss. In addition to intrusion, Denial of service (DoS)/Distributed DoS (DDoS) attack is also ...
Investigating Brain Function using Functional MRI-based Meta-analysis and Diffusion Tensor Imaging
(2015-05-04)
The investigation of structure and function in biological systems, specifically the brain, is paramount given the close relationship that they share with each other. Functional magnetic resonance imaging (fMRI) and Diffusion ...
Investigation of RF Noise in 28nm RF CMOS Using TCAD
(2015-05-07)
State of art of 28 nm RF MOSFET is studied using sentaurus process and device tools.
DC characteristics, such as C-V, Rs, Rd and I-V curves are calibrated by adjustment of
physics model. The relationship between saturation ...
Lane Detection, Calibration, and Attitude Determination with a Multi-Layer Lidar for Vehicle Safety Systems
(2010-11-05)
This thesis develops a lane detection algorithm which extracts lane markings from the road's surface in an effort to ascertain the lateral position of the vehicle in the lane using a lidar, with the goal of being incorporated ...
Lane Level Localization with Camera and Inertial Measurement Unit using an Extended Kalman Filter
(2010-12-07)
This thesis studies a technique for combining vision and inertial measurement unit (IMU) data to increase the reliability of lane departure warning systems. In this technique, 2nd-order polynomials are used to model the ...
Laser beam shaping and transformation using freeform surface design
(2014-05-02)
Lasers are used in many areas including material processing (lithography, semiconductor manufacturing), welding, cutting, drilling, medical procedures (eye surgery and cosmetic skin treatments), and optical data processing. ...
Layout and Assembly of a High Efficiency Multi-Phase Buck Converter Utilizing Chip Scale GaN Devices
(2014-07-22)
As the world becomes increasingly immersed in the Information Age, more and more supercomputers and datacenters must be built to keep up with humanity’s demand for electronic information. As the number of these facilities ...
Local Repair and Next-hop Backup Route Based improvements in AODV Routing Protocol for Mobile Ad Hoc Networks
(2013-07-11)
As Mobile Ad hoc Networks (MANETs) continue to experience increasing popularity, several different protocols have been proposed to efficiently transmit data among the participating nodes. These protocols have to be robust ...
Low Noise, Low Power Capacitive-Coupling Quadrature Voltage-Controlled Oscillator for Phase-Locked Loops
(2012-11-06)
This dissertation presents the analytical results and design details of two quadrature voltage-controlled oscillators (QVCO). It uses capacitive quadrature-coupling technique to couple two voltage-controlled oscillator ...
Low Phase Noise Voltage-Controlled Oscillators for Wide-Band Frequency Synthesis
(2013-11-11)
Noise-bandwidth trade-off is a challenge issue in modern voltage-controlled oscillator (VCO) designs. Wide-tuning VCOs usually suffer degraded phase noise. A mixer based tuning range enhancement technology is proposed in ...
A Low Power 10 GHz Phase Locked Loop for Radar Applications Implemented in 0.13 um SiGe Technology
(2009-04-14)
In today's society there is a growing trend where microwave wireless devices are becom-
ing common in every household and workplace. The increasing desire for these devices is to
create smaller low power devices. There ...