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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Effects of radio wave propagation in urbanized areas on UAV-GCS command and control /

Lock, Wai Lek Willy. January 2003 (has links) (PDF)
Thesis (M.S. in Electrical Engineering)--Naval Postgraduate School, December 2003. / Thesis advisor(s): David C. Jenn, Jeffrey B. Knorr. Includes bibliographical references (p. 85-87). Also available online.
2

Active radio frequency identification device (RFID) Real time location system

Van Niekerk, Chicot. January 2010 (has links)
M. Tech. Electrical Engineering. / This study is dedicated to the investigation of different methodologies used to determine the location of a beacon type active radio frequency identification device (RFID). Also included in the study is the hardware implementation of a system based on the angle of arrival location method, which makes use of array theory and angle of arrival techniques to identify the angle of the impinging tag transmission. In order to address the complex issues of array theory and linear array structures, a large part of the study is devoted to antennae, antenna arrays and the radiation patterns regarding the latter.
3

Effects of high voltage transmission lines on NDB performance

Ismail Ibrahim. January 1981 (has links)
Thesis (M.S.)--Ohio University, August, 1981. / Title from PDF t.p.
4

Aspects of dedicated (dormant) chip for intelligent part handling by industrial robots

Theron, Stephanus Andreas 12 September 2012 (has links)
M.Ing. / Intelligent object identification (the ability to find the identity, position and orientation of an remote object) in a Manufacturing environment plays an important role in the areas of Automation and Manufacturing. Radio frequency identification (RFID) systems have solve the problem of finding the identity of a remote object, but it fails to determine the position and orientation. The Global Positioning System (GPS) have a solution to find the position of a remote object in the global environment, but in a Manufacturing environment it fails. The main obstacle to overcome in finding a unique solution with radio frequency technology is reflections. This thesis investigates the idea of finding the identity, position (and orientation) of a (dormant) chip remotely. The chip transmits a binary signal at 244kHz. The string is Amplitude modulated. The receiver demodulates the signal to obtain the chip's identity. The receiver antenna is divided into four quadrants. First the quadrant in which the chip is located are determined. Three different voltages are then measured to obtain the position of the chip in the specific quadrant. Reflections can be ignored since the system works at a low frequency.

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