Search
Now showing items 1-10 of 71
New power controllers and the cost analysis of designing mixed signal application specific integrated circuits
(1993)
Power Controllers in airborne Power Systems need to monitor system parameters, check for abnormal conditions and initiate action, while conserving area, weight and power. The new power controller designed also offers a ...
Fiber optic intrusion sensor investigation
(1994)
A novel type of fiber optic intrusion sensor has been proposed and investigated theoretically and experimentally. The sensor is configured as a coherent optical time domain reflectometer (OTDR) with a highly coherent laser ...
Mixed-signal processor for a Fabry-Perot interferometric fiber optic pressure sensor
(1994)
This dissertation presents the design and implementation of a novel mixed-signal processing method for recovering the pressure information obtained from a fiber optic Fabry-Perot interferometric sensor. The sensor is ...
Performance characterization of monolithic thin film resistors
(1992)
Thin film resistors have a large resistance range and stable performance under high temperature operating condition. Thin film resistors trimmed by laser beam are able to achieve very high precision on resistance value. ...
The charge-based microelectronic implementation of neural networks
(1992)
The microelectronic implementation of neural networks has received widespread attention over the last few years. However, the scale of the integration is still far below what microelectronics routinely offers in the ...
Microwave opto-electronic device study : traveling wave photodetector and microstrip linear resonator
(1993)
A new type of photodetector, traveling wave photodetector (TWPD), was designed, fabricated, and tested. In a traveling wave photodetector structure the incident light interacts continuously with the optically generated ...
Fiber optic delay line development
(1994)
A program m able °Pheal-fiber delay gne using optical switches is investigated. The alpfiber optical switch is a MaC^'2 eh n d er interferometer w ith a piezoelectric transducer in each arm, which Pr°duces phase modulation ...
The study of the dynamic characteristics of bulk and quantum- well semiconductor lasers
(1992)
A reduced effective differential gain is shown for the first time to arise in diode lasers by including the modulation of the confinement factor with carrier density. This effective differential gain, and not the material ...
Analysis and design of active power filter topologies to cancel neutral current harmonics in low voltage electric power distribution systems
(1993)
Recent surveys of 208/120V three phase four wire electric systems, buildings and industrial plants with computers and other nonlinear loads, show excessive currents in the neutral. Under normal operating conditions with ...
Local and nonlocal robustness measures for signal detection and estimation
(1993)
There are many signal detection and estimation schemes in the field of communication theory and each on possesses a variety of fidelity criteria. When confronted with imperfectly known underlying statistical distributions, ...