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Now showing items 11-20 of 96
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, ...
Design considerations for band-pass sigma-delta modulators
(Texas A&M University, 2001)
Traditionally, the design of band-pass sigma-delta modulators is composed of two steps, the first at the system level and the second at the transistor level. The transition from the system level to the transistor level ...
Interface-trap charge-pump temperature sensor
(Texas A&M University, 2001)
This thesis deals with a new method to measure die surface temperature of VLSI chips. On-chip temperature sensors are widely used in newer VLSI circuits as a monitoring technique for fault detection and prevention. The ...
VLSI implementation of encoder and decoder for low-density parity-check codes
(Texas A&M University, 2001)
The aim of this research is to implement an encoder and a message-passing decoder for low-density parity-check codes in hardware. The desired data rate is 44.8 Mbps and the channel is an Additive White Gaussian Noise(AWGN) ...
An on-line human signature verification system
(Texas A&M University, 2000)
A study on human signature verification is presented. A literature survey of current and past methodologies for on-line signature verification is followed by a new approach to the problem of on-line signature verification. ...
Coded modulation with Low Density Parity Check codes
(Texas A&M University, 2001)
This thesis proposes the design of Low Density Parity Check (LDPC) codes for cases where coded modulation is used. We design these codes by extending the idea of Density Evolution (DE) that has been introduced as a powerful ...
Computation of the maximum loadability of a power system using nonlinear optimization
(Texas A&M University, 2001)
In recent years, power systems have undergone radical changes by becoming deregulated. Many electric companies have met new requirements and found ways to keep up with the changes in power systems. Issues of transfer ...
Distributed optical fiber vibration sensing
(Texas A&M University, 2001)
This thesis presents a distributed optical fiber vibration sensor. The purpose of this sensing system is to monitor, in real time, the status of railcars by burying an optical fiber underground beside the rails. Using a ...
xDSL line driver design
(Texas A&M University, 2001)
xDSL line driver is a very important element in xDSL systems. This thesis proposes a three stage xDSL line driver solution based on a multipath feedforward compensation principle. TSMC 0.8 micro meter high voltage BiCMOS ...
Generation of high peak power pulse using 2 stage erbium-doped fiber amplifier
(Texas A&M University, 2000)
This thesis presents the results obtained from generation of high repetition rate, high power output pulse using an erbium-doped fiber amplifier (EDFA). Two stage amplification was employed. The first stage setup used 980nm ...