Browsing Department of Electrical and Computer Engineering Graduate Theses by Title
Now showing items 261-280 of 330
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Radio frequency direct-digital QPSK modulators in CMOS technology
(2007-09-28)In this thesis, novel direct-digital Quadrature Phase Shift Keying (QPSK) modulators are proposed in low-cost Complimentary Metal Oxide Semiconductor (CMOS) technology for radio frequency (RF) wireless applications. ... -
Rateless Coding for Single-Source Networks with Common Information
(2015-06-03)In this thesis, we consider the communication problem of a single source simultaneously transmitting to multiple receivers whose sets of requested messages overlap. For decades, one of the challenges in this broadcast ... -
Real-time Cycle-slip Detection and Correction for Land Vehicle Navigation using Inertial Aiding
(2013-05-07)Processing GPS carrier-phase measurements can provide high positioning accuracy for several navigation applications. However, if not detected, cycle slips in the measured phase can strongly deteriorate the positioning ... -
Real-Time Embedded System Design and Realization for Integrated Navigation Systems
(2010-10-12)Navigation algorithms integrating measurements from multi-sensor systems overcome the problems that arise from using GPS navigation systems in standalone mode. Algorithms which integrate the data from 2D low-cost reduced ... -
Real-time Object Recognition in Sparse Range Images Using Error Surface Embedding
(2010-01-25)In this work we address the problem of object recognition and localization from sparse range data. The method is based upon comparing the 7-D error surfaces of objects in various poses, which result from the registration ... -
Real-Time Realization of Lidar – Based Digital Surface Models for Airborne Safe Landing Zone Identification in Challenging Environments
There is a growing demand over the last two decades for generating digital surface models (DSMs) in real-time. One of the important applications for real-time DSMs is aircraft landing, especially in a degraded visual ... -
Receiver Design and Performance Study for Amplify-and-Forward Cooperative Diversity Networks with Reduced CSI Requirement
(2014-06-25)This thesis aims to tackle the theoretical challenges of characterizing the fundamental performance limits of amplify-and-forward (AF) cooperative networks and to resolve the practical challenges in the receiver design for ... -
Recognition of Human Emotion in Speech Using Modulation Spectral Features and Support Vector Machines
(2009-09-09)Automatic recognition of human emotion in speech aims at recognizing the underlying emotional state of a speaker from the speech signal. The area has received rapidly increasing research interest over the past few years. ... -
Recognition of Severe Congestive Heart Failure using Parallel Cascade Identification
(2009-10-27)In previous studies on heartbeat series, it has been proposed that the healthy heartbeat pattern represents complex nonlinear dynamics, and such cardiac nonlinearity may be used as a clinical indicator for the diagnosis ... -
Reconfigurable Circuits for Communication Applications and Environment-Aware Receivers
This thesis explores the new applications which benefi t from the exploitation of the digital circuits in the design of RF circuits. Two main applications presented here are the recon figurable circuits design, essential ... -
Reconfigurable CMOS Mixers for Radio-Frequency Applications
(2010-06-21)This thesis focuses on the design of radio-frequency (RF) mixers, including a broadband downconverter mixer, an upconverter mixer and a downconverter mixer with high linearity. The basic mixer topology used in this thesis ... -
Recursive Bayesian Filtering Through a Mixture of Gaussian and Discrete Particles
Conventional solutions to nonlinear filtering problems fall into two categories, deterministic and stochastic approaches. While the former is heavily used due to low computational demand, approximation error is tied to ... -
A Reinforcement Learning Approach to Predictive Control Design: Autonomous Vehicle Applications
This research investigates the use of learning techniques to select control parameters in the Model Predictive Control (MPC) of autonomous vehicles. The general problem of having a vehicle track a target while adhering to ... -
Relay Selection in Two-Hop Wireless Communications
(2010-08-23)Relay communication has been shown to be effective to extend service coverage and mitigate channel impairments. This thesis focuses on relay selection (RS) of both unidirectional and bidirectional relay networks employing ... -
Reliability- and Variation-Aware Placement for Field-Programmable Gate Arrays
(2009-09-26)Field-programmable gate arrays (FPGAs) have the potential to address scaling challenges in CMOS technology because of their regular structures and the flexibility they possess by being re-configurable after fabrication. ... -
Reliability-based Detection of Variable-rate Space-time Block Codes
(2008-09-27)We present a new sub-optimal near-maximum-likelihood (ML) detection method for the family of variable-rate space-time block codes (VRSTBC). The proposed detection method is based on the concept of symbol reliability and ... -
Resonant Micro-Inverters for Single-Phase Grid-connected Photovoltaic Systems
(2015-07-29)This thesis addresses the design and implementation of micro-inverters for grid-connected single-phase photovoltaic (PV) systems. Despite the existing research issues concerning Micro-inverters, they have recently become ... -
Robust Lossy Source Coding for Correlated Fading Channels
(2011-09-28)Most of the conventional communication systems use channel interleaving as well as hard decision decoding in their designs, which lead to discarding channel memory and soft-decision information. This simplification is ... -
Robust Predictive Resource Allocation for Video Delivery Over Future Wireless Networks
The promising energy saving and quality of service (QoS) gains of Predictive Resource Allocation (PRA) for video streaming have recently been recognized in the wireless network research community. The PRA relies on future ... -
Rotation Encoding of C-Arm Fluoroscopes With Accelerometer
(2011-01-28)Accurate, practical, and affordable pose tracking on manually operated C-arm fluoroscopes is a major technical challenge. Conventional tracking methods, such as optical cameras and radiographic fiducials, are hampered by ...