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Now showing items 1-10 of 29
Classification of skin abnormalties using oblique incident diffuse reflectance spectroscopy
(Texas A&M University, 2002)
This thesis describes a study for the classification of skin abnormalities using oblique incident diffuse reflectance spectroscopy as part of the goal to provide a computer-assisted tool to dermatologists for lowering the ...
On-chip spectrum/vector analyzer for built-in testing of analog integrated circuits
(Texas A&M University, 2002)
The number of functions that can be integrated on a single chip has increased during the last years, making the functional testing of circuits a challenging task. Even though the digital testing has reached certain maturity ...
A system for catheter tracking using magnetic resonance
(Texas A&M University, 2002)
MRI guidance of surgical and diagnostic tools is a topic of active research. This thesis describes a system developed in a collaborative effort between BioTex, the MD Anderson Cancer Center and Texas A&M to monitor the ...
A narrow-band high-speed switched-capacitor sixth order bandpass ladder filter
(Texas A&M University, 2002)
In narrow-band high-speed switched-capacitor filters, the main limitation comes from the capacitance spread and from amplifier settling time. A secondary clock, that averages at an integer fraction of the main clock signal, ...
Fuzzy logic based operated device identification in power distribution systems
(Texas A&M University, 2002)
Fault location in distribution systems is a challenging task because of the lack of homogeneity in the system and due to uncertainity in the data used for estimating the faulted sections. Fuzzy logic has widely been applied ...
Design of a fast-settling OTA for high frequency switched-capacitor applications
(Texas A&M University, 2002)
The ever-growing technology has enabled switched-capacitor (SC) circuits to operate at the MHz frequency range. The equally increasing demand for high speed signal processing using SC technique dictates the need of high ...
Electronically controllable transmission line design for traveling wave array antenna feed network
(Texas A&M University, 2002)
In this thesis, an electronically controllable transmission line (ECTL) is presented. By modulating the conductivity of a doped Si modulator in the ECTL, the wave propagation constant in the ECTL is controlled. Measured ...
The application of fiber optic sensors to the monitoring of roller element bearing systems
(Texas A&M University, 2002)
A rotating machinery test rig was instrumented with fiber optic Fabry-Perot Interferometer (FFPI) strain sensors for condition monitoring of rolling element bearings. Wavelength division multiplexing (WDM) was utilized to ...
The role of unbiased perturbations towards providing estimator robustness with pragmatic geometric methods
(Texas A&M University, 2002)
Robustness of a system has been defined in various ways and a lot of work has been done to model the robustness of a system, but quantifying or measuring robustness has always been very difficult. In this research, we ...
Comparison of direct sequence and multicarrier CDMA systems employing multiuser detectors
(Texas A&M University, 2002)
In CDMA, users in a given cell transmit simultaneously in the same frequency band. Two ways to spread the spectra of users' signals have been considered in this work. In the first technique, called Direct Sequence (DS) ...