Investigation into variable shift keying using direct sequence spread spectrum techniques

dc.contributor.advisorBraun, Robinen_ZA
dc.contributor.authorWhaits, Clive Vivianen_ZA
dc.date.accessioned2014-11-11T20:07:35Z
dc.date.available2014-11-11T20:07:35Z
dc.date.issued1997en_ZA
dc.descriptionIncludes bibliographical references.en_ZA
dc.description.abstractThis thesis reports the research done into a relatively unknown modulation scheme called VPSK (Variable Phase Shift Keying) and the use of DSSS (Direct Sequence Spread Spectrum) techniques to achieve carrier synchronization and hence coherent demodulation in the receiver. VPSK is a new and relatively unknown modulation scheme in which data bits are encoded using patented algorithms designed by Millerand Walker. VPSK modulation is a SSBSC (Single Sideband Suppressed Carrier) modulation scheme with good bandwidth efficiency. Data is coherently demodulated in the receiver. In existing VPSK systems, the locally generated carrier in the receiver is synchronized to an integer multiple of the symbol clock frequency to allow coherent demodulation. This coherent method of demodulation is not optimum if the channel over which information must be transmitted is a non-Gaussian channel, or has multi-path characteristics.en_ZA
dc.identifier.apacitationWhaits, C. V. (1997). <i>Investigation into variable shift keying using direct sequence spread spectrum techniques</i>. (Thesis). University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Electrical Engineering. Retrieved from http://hdl.handle.net/11427/9565en_ZA
dc.identifier.chicagocitationWhaits, Clive Vivian. <i>"Investigation into variable shift keying using direct sequence spread spectrum techniques."</i> Thesis., University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Electrical Engineering, 1997. http://hdl.handle.net/11427/9565en_ZA
dc.identifier.citationWhaits, C. 1997. Investigation into variable shift keying using direct sequence spread spectrum techniques. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Whaits, Clive Vivian AB - This thesis reports the research done into a relatively unknown modulation scheme called VPSK (Variable Phase Shift Keying) and the use of DSSS (Direct Sequence Spread Spectrum) techniques to achieve carrier synchronization and hence coherent demodulation in the receiver. VPSK is a new and relatively unknown modulation scheme in which data bits are encoded using patented algorithms designed by Millerand Walker. VPSK modulation is a SSBSC (Single Sideband Suppressed Carrier) modulation scheme with good bandwidth efficiency. Data is coherently demodulated in the receiver. In existing VPSK systems, the locally generated carrier in the receiver is synchronized to an integer multiple of the symbol clock frequency to allow coherent demodulation. This coherent method of demodulation is not optimum if the channel over which information must be transmitted is a non-Gaussian channel, or has multi-path characteristics. DA - 1997 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 1997 T1 - Investigation into variable shift keying using direct sequence spread spectrum techniques TI - Investigation into variable shift keying using direct sequence spread spectrum techniques UR - http://hdl.handle.net/11427/9565 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/9565
dc.identifier.vancouvercitationWhaits CV. Investigation into variable shift keying using direct sequence spread spectrum techniques. [Thesis]. University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Electrical Engineering, 1997 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/9565en_ZA
dc.language.isoengen_ZA
dc.publisher.departmentDepartment of Electrical Engineeringen_ZA
dc.publisher.facultyFaculty of Engineering and the Built Environment
dc.publisher.institutionUniversity of Cape Town
dc.subject.otherApplied Scienceen_ZA
dc.titleInvestigation into variable shift keying using direct sequence spread spectrum techniquesen_ZA
dc.typeMaster Thesis
dc.type.qualificationlevelMasters
dc.type.qualificationnameMScen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
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