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Now showing items 61-70 of 96
Space time coded code division multiplexing on SC140 DSP
(Texas A&M University, 2001)
The aim of this research is to design a high data rate wireless communication system for multi-path fading channels. Code-division multiplexing is proposed as a modulation scheme for a space-time coded multiple antenna ...
Continuous time very low frequency analog signal processors
(Texas A&M University, 2000)
In this work, basic analog integrated circuits such as integrators, multipliers, comparators, summers and impedance scaling networks which serve as the basic building blocks for designing complicated continuous time analog ...
Fiber optic temperature sensor using a grating on an angled fiber tip
(Texas A&M University, 2000)
A fiber optic temperature sensor intended to sense temperatures up to 1400°C was investigated experimentally. A key element of the sensor is a grating on the 45°-angled tip of a single mode fiber. When light propagating ...
Robust multiuser detection in α-stable distribution non-Gaussian noise
(Texas A&M University, 2002)
In this thesis, we will model the ambient non-Gaussian noise as the α-stable distribution because this model has many attractive properties. By using this noise model, the robust multiuser detectors achieve significant ...
Selection of wavelets for analysis of power system disturbances
(Texas A&M University, 2002)
The wavelet transform represents a powerful signal processing tool with a variety of applications. The main reason for the growing interest in this field of signal processing is its ability not only to decompose a signal ...
Signal processing for fiber optic acoustic sensor system
(Texas A&M University, 2000)
A new scheme for optic detection of sound waves based upon fiber optic interferometer is presented. Multiple fiber Fabry-Perot interferometers (FFPI) are used as arrayed sensor elements inside the cable. The sensors are ...
A novel millimeter-wave beam-steering technique using a dielectric-image-line-fed grating film
(Texas A&M University, 2001)
This thesis introduces a novel, broadband, low-cost technique for beam steering at millimeter-wave frequencies using a moveable grating film fed by dielectric image line. An excellent radiation pattern is maintained over ...
A 1.8V 2-2 cascade Sigma-Delta modulator for high speed applications
(Texas A&M University, 2002)
In order to satisfy today's most important requirements of the A/D and D/A converters that are low voltage and high speed operation, a low voltage and high speed circuit solutions for [] modulators are strongly demanding. ...
A channel estimation algorithm for Space Time OFDM systems on the Starcore SC140 DSP
(Texas A&M University, 2002)
This research implements an estimation scheme for a Space-Time OFDM system over a fading channel and evaluates the performance of the receiver using this scheme. The channel estimation problem for ST-OFDM is complex as the ...
A physical approach to metal insulator metal (MIM) tuning capacitor modeling
(Texas A&M University, 2000)
Due to the extensive use of capacitors both as tuning and RF bypass elements in monolithic integrated circuit (MMIC) design, it becomes increasingly important to accurately predict the performance of such structures in ...