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Now showing items 81-90 of 96
Design and implementation of a high data rate wireless system using Low-Density Parity-Check codes
(Texas A&M University, 2000)
The aim of this research is to design a high performance, high data rate, low cost wireless communications system for use in a typical outdoor environment. The use of Low-Density Parity-check (LDPC) codes as the forward ...
Effects of detector censoring in nominally Gaussian noise
(Texas A&M University, 2000)
In this thesis, we consider the robustness and performance of a sensor system which detects a known constant signal in additive, mutually i.i.d., nominally Gaussian noise. The detector utilizes the Huber-type detector ...
Equivalent circuit modeling of hybrid electric vehicle drive train
(Texas A&M University, 2001)
The main goals of the advanced vehicles designer are to improve efficiency, to decrease emissions and to meet customer's requirements. The design of such vehicles is challenging and cannot efficiently be achieved without ...
Electrically long vertical interconnects for microwave circuits and antennas
(Texas A&M University, 2000)
As microwave circuit applications proliferate, they are being placed into many new, non-planar configurations. Any circuit using multiple circuit levels requires a vertical interconnect between the planes. Research on ...
20 MHz IF bandpass switched capacitor [] modulator using a high performance OTA with NCFF compensation scheme
(Texas A&M University, 2001)
Switched capacitor (SC) circuits are widely used in many applications because of their accuracy and ease of integration in CMOS technology. They are not suitable for operation in high frequencies because of the settling ...
Hierarchical implementation of a wireless communications system
(Texas A&M University, 2000)
Personal communications devices, such as the cellular phone, currently dominate the field of wireless communications. Product specifications such as weight, battery life, and transmission capacity pertain to consumer and ...
Audio compression with non-uniform modulated complex lapped transform
(Texas A&M University, 2000)
In the past 10 years, advances in audio compression have been tremendous. Lapped Orthogonal Transforms (LOT) and psychoacoustic properties have significantly improved performance of transform audio coders. As a result, ...
Hierarchical classification of modulation signals
(Texas A&M University, 2002)
This thesis addresses the problem of classifying both analog and digital modulation signals using different kinds of classifiers. The classification of modulation signals has both civilian and military applications. A total ...
A compact broadband multilayer patch antenna and its applications for phased arrays
(Texas A&M University, 2002)
Phased arrays of antennas have found many applications in radio frequency and microwave frequency systems. One example of their use is in multibeam phased arrays for communications satellites. Patch antennas are well ...
Design and development of a DC-DC converter for a fuel cell inverter system
(Texas A&M University, 2001)
This thesis outlines the design and development of a DC-DC converter for a fuel cell inverter application. The proposed DC-DC converter was designed and tested at Texas A&M to meet the specifications laid down for the ...