Now showing items 108-127 of 142

• #### Principle and practice of optical code-division multiple access communication ﻿

(1996)
This research examines the theoretical and experimental aspects of code-division multiple access (CDMA) communication in the incoherent, or direct detection, optical domain. We develop new modulation and detection principles ...
• #### Process design and circuit model development ﻿

(1995)
Process design for integrated circuit manufacturing has traditionally been implemented with little simulation prior to fabrication. As with circuit design of a decade ago, the available simulation tools were mainframe-based, ...
• #### Programming using a constraint satisfaction system for robotics ﻿

(1992)
Programming robots is a difficult task, especially for autonomous robots that must operate in an open, unstructured environment. A programmer building such a system should have a number of sophisticated tools at his/her ...
• #### Rare gas alkali ionic excimers ﻿

(1989)
The rare gas alkali ionic excimers (RgA)$\sp+$ are investigated as possible VUV laser sources. The detection of emission from (XeRb)$\sp+$ at 165 nm using laser produced plasma soft x-ray excitation is reported. In addition ...
• #### Rate-distortion optimized packet scheduling for video streaming ﻿

(2006)
Internet video streaming places new demands on source coding and network transport algorithms. The challenge is to deliver compressed video packets before their play-out deadline, despite of varying throughput, packet ...
• #### Regime Change: Sampling Rate vs. Bit-Depth in Compressive Sensing ﻿

(2012)
The compressive sensing (CS) framework aims to ease the burden on analog-to-digital converters (ADCs) by exploiting inherent structure in natural and man-made signals. It has been demonstrated that structured signals can ...
• #### Resistor networks and optimal grids for the numerical solution of electrical impedance tomography with partial boundary measurements ﻿

(2010)
The problem of Electrical Impedance Tomography (EIT) with partial boundary measurements is to determine the electric conductivity inside a body from the simultaneous measurements of direct currents and voltages on a subset ...
• #### ShuFFLE: Automated Framework for HArdware Accelerated Iterative Big Data Analysis ﻿

(2014-10-22)
This thesis introduces ShuFFLE, a set of novel methodologies and tools for automated analysis and hardware acceleration of large and dense (non-sparse) Gram matrices. Such matrices arise in most contemporary data mining; ...
• #### Signal constellation design for Gaussian and non-Gaussian channels ﻿

(1995)
Optimum signal constellation design is crucial to the design of high-performance digital communication systems. Variation in signal set can dramatically change the system performance. Our goal is to design constellations, ...
• #### Simulation of shared memory parallel systems ﻿

(1990)
This thesis describes a method to simulate parallel programs written for shared memory multiprocessors. We have extended execution-driven simulation to facilitate the simulation of shared memory. We have developed a shared ...
• #### Size-Controlled Synthesis of Monodispersed Gold Nanoparticles via Carbon Monoxide Reduction ﻿

(2011)
In this thesis an in depth analysis of nanoparticle synthesis utilizing carbon monoxide as a reducing agent is presented. Synthesized nanoparticle mono and polydispersity was examined via particle distribution profiles, ...
• #### Spatial and Temporal Image Prediction with Magnitude and Phase Representations ﻿

(2011)
In this dissertation, I develop the theory and techniques for spatial and temporal image prediction with the magnitude and phase representation of the Complex Wavelet Transform (CWT) or the over-complete DCT to solve the ...
• #### Spectrum sharing techniques for next generation cellular networks ﻿

(2009)
Spectrum sharing is an opportunistic strategy to improve the efficient usage of the frequency spectrum. Much of the research to quantify these gains are under the premise that the spectrum is being used inefficiently. Our ...
• #### Sphere detection and LDPC decoding algorithms and architectures for wireless systems ﻿

(2008)
Ever increasing demand for high data rate wireless transmissions with high spectral efficiency leads to utilization of communication systems with multiple transmit and receive antennas. In addition, excellent error-rate ...
• #### Spline-based methods for acquisition of signal and image models ﻿

(1989)
In this thesis spline functions have been used to do data fitting for modeled signals. Optimum splines are obtained based on least squares error for the specific signal and image models. In the case of one-dimensional ...
• #### Studies in system representation and control ﻿

(1995)
Representation of an abstract system by a mathematical object such as a matrix or a differential equation is important because much of the analysis is done via representations. For discrete-time input-output systems, ...
• #### Studies of an injection controlled rare gas halide excimer laser ﻿

(1988)
Characteristics of an injection-controlled electron-beam pumped XeF(C $\to$ A) excimer laser have been investigated with emphasis on efficient wideband tuning and scaling issues. Using a quasi-cw dye laser as an injection ...
• #### Studies on capacity and performance of digital transmission over copper loops ﻿

(1995)
Digital transmission over copper loops is studied. Models are found of main sources of interference, including near-end crosstalk (NEXT), far-end crosstalk (FEXT), impulse noise (IN) and intersymbol interference (ISI). ...
• #### Subnet discovery in passive internally sensed network tomography ﻿

(2007)
Passive internally-sensed network tomography is the study of network characteristics and behavior based on observations of network traffic on a select subset of links inside the network. In this research, we identify the ...
• #### Subradiant, superradiant and Fano resonances in dimer and ring/disk nanocavities ﻿

(2010)
Subradiant and superradiant plasmon modes in ring/disk nanocavities and dialers are investigated theoretically and experimentally. The subradiance is obtained through an overall reduction of the total dipole moment of the ...