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Design of Ultrawideband Digitizing Receivers for the VHF Low Band

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dc.contributor.authorTaylor, David Wyatten
dc.contributor.committeechairEllingson, Steven W.en
dc.contributor.committeememberRaman, Sanjayen
dc.contributor.committeememberDavis, William A.en
dc.contributor.departmentElectrical and Computer Engineeringen
dc.date.accessioned2014-03-14T20:37:10Zen
dc.date.adate2006-07-24en
dc.date.available2014-03-14T20:37:10Zen
dc.date.issued2006-05-09en
dc.date.rdate2006-07-24en
dc.date.sdate2006-05-16en
dc.description.abstractThe next generation of receivers for applications such as radio astronomy, spectrum surveillance, and frequency-adaptive cognitive radio will require the capability to digitize very large bandwidths in the VHF low band (30 to 100 MHz). However, methodology for designing such a receiver is not well established. The difficulties of this design are numerous. There are various man-made interferers occupying this spectrum which can block desired signals or spectrum, either directly or through intermodulation. The receivers will typically use simple (i.e., narrowband) antennas, so the efficiency of power transfer to the preamplifier needs to be carefully considered. This thesis takes these design challenges into account and produces a seven step design methodology for direct sampling wideband digitizing receivers. The methodology is then demonstrated by example for three representative receivers. Finally, improvements to the analysis are suggested.en
dc.description.degreeMaster of Scienceen
dc.identifier.otheretd-05162006-161217en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-05162006-161217/en
dc.identifier.urihttp://hdl.handle.net/10919/32860en
dc.publisherVirginia Techen
dc.relation.haspartWyatt_Taylor_Thesis.pdfen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectdesign methodologyen
dc.subjectVHFen
dc.subjectreceiveren
dc.subjectwidebanden
dc.titleDesign of Ultrawideband Digitizing Receivers for the VHF Low Banden
dc.typeThesisen
thesis.degree.disciplineElectrical and Computer Engineeringen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

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