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Thesis: Investigating the Techniques to determine the position of cellular telephones |
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Sunday, 30 November 2003 |
Author: C. de Jager
Date: 2003
Publication type: Undergraduate thesis (Bsc Civil Engineering)
This
thesis investigates the techniques available to detennine the position
of cellular phones. Furthennore this thesis is an attempt to establish
the accuracy obtained using the Cell of Origin method as well as the
accuracy of the Global Positioning System (GPS) receiver fitted in the
Benefon ESC cellular phone.
The literature review
provides a theoretical approach on how a mobile telephone system works
and further examines the techniques available to detennine the position
of a cellular phone using the technology of the cellular network as
well as GPS.
The approach taken was to observe the
coordinates of several town survey marks (tsm) situated in and around
Cape Town with the Benefon ESC PPS receiver. The root mean square (RMS)
of the Benefon ESC GPS receiver was calculated and comparisons made
with a Gannin III handheld GPS receiver. Field tests were further
perfonned to establish the reliability of the Cell of Origin method in
the Rondebosch area.
The findings show that the Benefon
ESC GPS receiver yields half the accuracy to that of the Gannin III
handheld GPS receiver and that the Cell of Origin method yields an
accuracy of lkm in urban environments.
From the findings
of this thesis it was deduced that, cellular phones equipped with GPS
receivers provides tremendous spatial data gathering opportunities.
Furthennore the Cell of Origin method can be used as a tool in the
location based service industry to provide infonnation regarding the
location of cellular phones.
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RESEARCH & INNOVATION