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Automatic compensation for inaccuracies in quadrature mixers

dc.contributor.advisorLourens, J. G.
dc.contributor.advisorVan Rooyen, G-J.
dc.contributor.authorStormyrbakken, Christeren_ZA
dc.contributor.otherUniversity of Stellenbosch. Faculty of Engineering. Dept. of Electrical and Electronic Engineering.
dc.date.accessioned2006-11-15T09:16:57Zen_ZA
dc.date.accessioned2010-06-01T08:46:19Z
dc.date.available2006-11-15T09:16:57Zen_ZA
dc.date.available2010-06-01T08:46:19Z
dc.date.issued2005-12en_ZA
dc.identifier.urihttp://hdl.handle.net/10019.1/2334
dc.descriptionThesis (MScEng (Electrical and Electronic Engineering))--University of Stellenbosch, 2005.
dc.description.abstractIn an ideal software defined radio (SDR), all parameters are defined in software, which means the radio can be reconfigured to handle any communications standard. A major technical challenge that needs to be overcome before this SDR can be realised, is the design of an RF front end that can convert any digital signal to an analogue signal at any carrier frequency and vice versa. Quadrature mixing (QM) can be used to implement and analogue front end, that performs up and down conversion between the complex baseband centred around 0 Hz and the carrier frequency. By separating the tasks of frequency conversion and digital-to-analogue conversion, the latter can be performed at a much lower sample rate, greatly reducing the demands on the hardware. Furthermore, as QM can handle variable carrier frequency and signal bandwidth, this can be done without sacrificing reconfigurability. Using QM as an analogue front end may therefore be the solution to implementing SDR handsets.en_ZA
dc.format.extent1551973 bytesen_ZA
dc.format.mimetypeapplication/pdfen_ZA
dc.publisherStellenbosch : University of Stellenbosch
dc.subjectSoftware radioen_ZA
dc.subjectCalibration systemsen_ZA
dc.subjectDissertations -- Electronic engineeringen_ZA
dc.subjectTheses -- Electronic engineeringen_ZA
dc.subject.otherElectrical and Electronic Engineeringen_ZA
dc.titleAutomatic compensation for inaccuracies in quadrature mixersen_ZA
dc.typeThesisen_ZA
dc.rights.holderUniversity of Stellenbosch


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