Browsing Auburn Theses and Dissertations by Author "Tugnait, Jitendra"

Now showing items 1-18 of 18

4D Strain from Tagged Magnetic Resonance Images by Unwrapping the Harmonic Phase Images

Ambale Venkatesh, Bharath (2010-12-14)

Accurate assessment of ventricular function is clinically important. Tagged magnetic resonance imaging (MRI) is the modality of choice for calculating parameters such as torsion, rotation and strain that characterize ...

Adaptive Estimation and Equalization of Doubly-selective Fading Channels using Basis Expansion Models

Kim, Hyosung (2010-12-07)

Wireless channels, due to multipath propagation and Doppler spread, are characterized by frequency- and time-selectivity, so-called doubly-selective wireless channels. In this dissertation, we concentrate on adaptive channel ...

Algorithms for Optimal Energy Management in the Smart Grid

Wang, Yu (2015-07-02)

Smart grid (SG) is regarded as the next generation power grid, which implements an innovative idea for a highly automated and integrated power system. The two-way energy and information flows in the SG, together with the ...

Analysis of Simulated Performance of Integrated Vector Tracking and Navigation Loops for GPS

Hamm, Christopher (2005-12-15)

An alternative GPS signal tracking method that uses an extended Kalman-Bucy filter in place of traditional independent, parallel tracking loops is presented in this thesis. Furthermore, this method is extended into a ...

Auto-Configuration in Multi-Hop Mobile Ad Hoc Networks

Sinha, Priyanka (2007-05-15)

As devices with wireless access technology, greater memory and longer battery life, proliferate, there is a need to be able to allow more than one hop communication amongst them. Also, such a network, with wireless enabled ...

Channel Estimation and Equalization for Doubly-Selective Channels Using Basis Expansion Models

Song, Liying (2008-05-15)

The nature of the wireless channels places fundamental limitations on the performance of wireless communication systems. In addition to the frequency-selectivity characteristics caused by multipath propagation, the high-rate ...

Channel State Information Fingerprinting Based Indoor Localization: a Deep Learning Approach

Gao, Lingjun (2015-07-28)

With the fast growing demand of location-based services in indoor environments, indoor positioning based on fingerprinting has attracted a lot of interest due to its high accuracy. In this thesis, we present a novel deep ...

Doubly-Selective Channel Estimation and Equalization Using Superimposed Training and Basis Expansion Models

He, Shuangchi (2007-08-15)

Owing to multipath propagation and Doppler spread, typical wireless channels are both frequency- and time-selective (doubly-selective). In this dissertation, we concentrate on channel estimation and equalization over ...

Electromagnetic induction systems for discrimination among metallic targets

Chilaka, Sailaja (2006-05-15)

This dissertation discusses the ability of time- and frequency-domain electromagnetic induction (EMI) systems to discriminate unexploded ordnance (UXO) from clutter. The chief contribution of this work is to demonstrate ...

A GPS L1 and Cellular 4G LTE Vector Tracking Software-Defined Receiver

Morgan, Samuel (2023-11-17)

In this thesis, a traditional GPS L1 vector tracking receiver is augmented with cellular 4G LTE channels. The hybrid receiver can acquire and track GPS L1 and LTE signals simultaneously in an extended Kalman filter-based ...

Lattice-Reduction Aided Linear Equalization For Wireless Communications Over Fading Channels

Zhang, Wei (2006-05-15)

Modern wireless communications ask for high data rate, high transmission performance and low complexity. High data rate induces frequency-selective channels because of the relatively shorter symbol duration than the delay ...

Modeling and Performance Analysis of GPS Vector Tracking Algorithms

Lashley, Matthew (2009-12-17)

This dissertation provides a detailed analysis of GPS vector tracking algorithms and the advantages they have over traditional receiver architectures. Standard GPS receivers use a decentralized architecture that separates ...

Motion Estimation from Tagged MR Images and Application to Cardiac Strain Evaluation and Functional Analysis of Ocular Tissues

Li, Ming (2015-09-23)

Tagged MRI is a magnetic resonance imaging technique that has been widely applied to tissue functional evaluation, especially the myocardium. Unlike traditional anatomical imaging methods, tagged MRI spatially encodes the ...