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Verification of a computer simulator for digital transmission over twisted pairs.

A dissertation submitted to the Faculty of Engineering, University of the Witwatersrand,
Johannesburg, in fulfilment of the requirements for the degree of Master of
Science in Engineering / This dissertation verifies a Computer Simulation Package for modeling pulse
transmission over digital subscriber loops. Multigauge sections on subscriber cables
can be studied. The model used for each section incorporates skin, proximity and
eddy current effects. The model allows important quantities such as near end echo
and overall transmission distortion of pulses to be.predicted. An experimental facility
has been established in the laboratory for the purpose of validating the results produced
by the simulator with results obtained over real cables. The experimental
facility has as far as possible been automated by making use of computer controlled
equipment for direct setup or the experiment, data transfer, and analysis. The results
obtained from the pulse propagation program and that obtained from measurements
are in close. agreement, rendering the Computer Simulation Package useful for
analysing the performance of multi gauge digital subscriber loops. / AC 2018
Date January 1990
CreatorsCosta, Fernando
Source SetsSouth African National ETD Portal
Detected LanguageEnglish

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