A study of multilevel partial response signalling for transmission in a basic supergroup bandwidth

 

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dc.contributor.advisor Braun, Robin en_ZA
dc.contributor.author Joffe, Neil Raymond en_ZA
dc.date.accessioned 2014-10-11T12:05:53Z
dc.date.available 2014-10-11T12:05:53Z
dc.date.issued 1989 en_ZA
dc.identifier.citation Joffe, N. 1989. A study of multilevel partial response signalling for transmission in a basic supergroup bandwidth. University of Cape Town. en_ZA
dc.identifier.uri http://hdl.handle.net/11427/8334
dc.description Includes bibliographical references. en_ZA
dc.description.abstract The work in this thesis is primarily directed toward the design, construction and testing of an experimental multilevel partial response signalling baseband system. The system will find practical application in existing frequency division multiplexed-frequency modulated microwave links. The basic supergroup bandwidth of these links is 240 kHz. The design requires a transmission rate of 1.024 Mb/s in this bandwidth. Class-4 15 partial response signalling is the coding technique suitable to achieve this. A pilot tone scheme is used to facilitate symbol timing recovery at the demodulator. A sixth order Butterworth low pass filter approximates the ideal raised-cosine Nyquist channel. A theoretical discussion on impairments caused by deviation from this channel is given. Since the experimental system was non-ideal, it produced a degradation in the channel signal to noise ratio. This degradation, coupled with other factors, showed that further development was necessary for the system to be suitable for connection into an existing microwave link. en_ZA
dc.language.iso eng
dc.subject.other Electrical and Electronic Engineering en_ZA
dc.title A study of multilevel partial response signalling for transmission in a basic supergroup bandwidth en_ZA
dc.type Master Thesis
uct.type.publication Research en_ZA
uct.type.resource Thesis en_ZA
dc.publisher.institution University of Cape Town
dc.publisher.faculty Faculty of Engineering and the Built Environment
dc.publisher.department Department of Electrical Engineering en_ZA
dc.type.qualificationlevel Masters
dc.type.qualificationname MSc en_ZA
uct.type.filetype Text
uct.type.filetype Image
dc.identifier.apacitation Joffe, N. R. (1989). <i>A study of multilevel partial response signalling for transmission in a basic supergroup bandwidth</i>. (Thesis). University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Electrical Engineering. Retrieved from http://hdl.handle.net/11427/8334 en_ZA
dc.identifier.chicagocitation Joffe, Neil Raymond. <i>"A study of multilevel partial response signalling for transmission in a basic supergroup bandwidth."</i> Thesis., University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Electrical Engineering, 1989. http://hdl.handle.net/11427/8334 en_ZA
dc.identifier.vancouvercitation Joffe NR. A study of multilevel partial response signalling for transmission in a basic supergroup bandwidth. [Thesis]. University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Electrical Engineering, 1989 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/8334 en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Joffe, Neil Raymond AB - The work in this thesis is primarily directed toward the design, construction and testing of an experimental multilevel partial response signalling baseband system. The system will find practical application in existing frequency division multiplexed-frequency modulated microwave links. The basic supergroup bandwidth of these links is 240 kHz. The design requires a transmission rate of 1.024 Mb/s in this bandwidth. Class-4 15 partial response signalling is the coding technique suitable to achieve this. A pilot tone scheme is used to facilitate symbol timing recovery at the demodulator. A sixth order Butterworth low pass filter approximates the ideal raised-cosine Nyquist channel. A theoretical discussion on impairments caused by deviation from this channel is given. Since the experimental system was non-ideal, it produced a degradation in the channel signal to noise ratio. This degradation, coupled with other factors, showed that further development was necessary for the system to be suitable for connection into an existing microwave link. DA - 1989 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 1989 T1 - A study of multilevel partial response signalling for transmission in a basic supergroup bandwidth TI - A study of multilevel partial response signalling for transmission in a basic supergroup bandwidth UR - http://hdl.handle.net/11427/8334 ER - en_ZA


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