Now showing items 21-30 of 1019
Antenna effects on indoor wireless channels and a deterministic wide-band propagation model for in-building personal communication systems
(Virginia Tech, 1993-04-22)
While the application of antenna diversity in a narrow band communication system is well understood, little research has been done on antenna effects in wide-band channels. Research has shown that circular polarization ...
Design and fabrication of an underwater digital signal processor multichip module on low temperature cofired ceramic
(Virginia Tech, 1994-12-15)
An Underwater Digital Signal Processor (UDSP) multichip module (MCM) was designed and fabricated according to specifications outlined by the Naval Surface Warfare Center (NSWC), Dahlgren Division. Specifications indicated ...
An eigenstructure technique for direct sequence spread spectrum synchronization
(Virginia Tech, 1995)
Studies on hybrid optical bistable devices using an acousto-optic modulator
(Virginia Polytechnic Institute and State University, 1988)
Sapphire fiber in optical sensors
(Virginia Tech, 1995-03-04)
The physical and optical properties of sapphire fiber has been investigated in an effort to create a high temperature optical fiber sensor. Sapphire fiber demonstrates high optical attenuation. This attenuation is very ...
Transparent Asynchronous Transmitter Receiver Interface (TAXI) communications for fiber optic data links
(Virginia Tech, 1994)
Serial or parallel data links have been the primary tools of data transfer across physical layer boundaries for point-to-point communication systems. However there exists a tradeoff between these two kinds of data transfer ...
Quantization of color images using the modified median cut algorithm
(Virginia Tech, 1992-09-21)
<p>Many digital display devices allow only a limited number of colors to be displayed concurrently. Digitized color images typically contain several hundred to several thousand different colors. If these color images are ...
An intelligent communication controller for the VME bus
(Virginia Polytechnic Institute and State University, 1989)
This document explains the design of the microcontroller based Intelligent Communication Controller (ICC) for the Motorola VMEbus. The card transmits and receives serial data on T1 medium at a rate of 1.544 Mbits/sec. This ...
Time domain device modeling of High Frequency Power MOSFETs
(Virginia Tech, 1993-12-15)
<p>The development of the High Frequency Power MOSFET has brought about a need for accurate models. Now that the frequency range of these MOSFETs is in domains where typically scattering parameter measurements are used, a ...