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dc.contributor.advisorDinh, Anh vanen_US
dc.creatorCheng, Xiaen_US
dc.date.accessioned2007-03-28T22:50:53Zen_US
dc.date.accessioned2013-01-04T04:27:28Z
dc.date.available2007-03-29T08:00:00Zen_US
dc.date.available2013-01-04T04:27:28Z
dc.date.created2007-03en_US
dc.date.issued2007-03-29en_US
dc.date.submittedMarch 2007en_US
dc.identifier.urihttp://hdl.handle.net/10388/etd-03282007-225053en_US
dc.description.abstractFor ultra-wideband (UWB) communications, acquisition is challenging. The reason is from the ultra short pulse shape and ultra dense multipath interference. Ultra short pulse indicates the acquisition region is very narrow. Sampling is another challenge for UWB design due to the need for ultra high speed analog-to digital converter.A sub-optimum and under-sampling scheme using pilot codes as transmitted reference is proposed here for acquisition. The sampling rate for the receiver is at the symbol rate. A new architecture, the reference aided matched filter is studied in this project. The reference aided matched filter method avoids using complex rake receiver to estimate channel parameters and high sampling rate for interpolation. A limited number of matched filters are used as a filter bank to search for the strongest path. Timing offset for acquisition is then estimated and passed to an advanced verification algorithm. For optimum performance of acquisition, the adaptive post detection integration is proposed to solve the problem from dense inter-symbol interference during the acquisition. A low-complex early-late gate tracking loop is one element of the adaptive post detection integration. This tracking scheme assists in improving acquisition accuracy. The proposed scheme is evaluated using Matlab Simulink simulations in term of mean acquisition time, system performance and false alarm. Simulation results show proposed algorithm is very effective in ultra dense multipath channels. This research proves reference aided acquisition with tracking loop is promising in UWB application.en_US
dc.language.isoen_USen_US
dc.subjectUWBen_US
dc.subjectAcquisitionen_US
dc.subjectSymbol rate samplingen_US
dc.subjectIEEE channel modelsen_US
dc.titleUWB communication systems acquisition at symbol rate sampling for IEEE standard channel modelsen_US
thesis.degree.departmentElectrical Engineeringen_US
thesis.degree.disciplineElectrical Engineeringen_US
thesis.degree.grantorUniversity of Saskatchewanen_US
thesis.degree.levelMastersen_US
thesis.degree.nameMaster of Science (M.Sc.)en_US
dc.type.materialtexten_US
dc.type.genreThesisen_US


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