Measuring Noise in the VHF Band and Its Effect on Low SNR Signal Detection

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dc.contributor.authorDeJarnette, Hunter Archeren
dc.contributor.committeechairBuehrer, R. Michaelen
dc.contributor.committeememberEllingson, Steven W.en
dc.contributor.committeememberda Silva, Claudio R. C. M.en
dc.contributor.departmentElectrical and Computer Engineeringen
dc.date.accessioned2014-03-14T20:46:21Zen
dc.date.adate2012-10-26en
dc.date.available2014-03-14T20:46:21Zen
dc.date.issued2012-09-26en
dc.date.rdate2012-10-26en
dc.date.sdate2012-10-04en
dc.description.abstractWith the increasing demand for access to the crowded radio frequency spectrum, cognitive radios have been suggested as one solution. Cognitive radios would be frequency agile and able to sense their radio environment and opportunistically use empty spectrum. Spectrum sensing, monitoring a given band of spectrum to see if it is occupied, is an essential part of a cognitive radio. The preferred method of spectrum sensing is the energy detector, which does not require any a priori information about the signal to be detected and is computationally simple to implement. Man-made noise, impulsive in nature, has also become more prevalent with the widespread use of electronic devices. In this thesis, we took measurements of man-made impulsive noise in the broadcast digital television bands to measure its presence, power, and spatial correlation. The effects of impulsive noise on the detection performance of an energy detector were analyzed. Lastly, a wideband RF receiver was designed, built, and tested on the Virginia Tech campus, which would be well suited both to spectrum sensing and taking measurements of impulsive noise.en
dc.description.degreeMaster of Scienceen
dc.identifier.otheretd-10042012-132540en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-10042012-132540/en
dc.identifier.urihttp://hdl.handle.net/10919/35293en
dc.publisherVirginia Techen
dc.relation.haspartDeJarnette_HA_T_2012.pdfen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectenergy detectoren
dc.subjectimpulsive noiseen
dc.subjectVHFen
dc.titleMeasuring Noise in the VHF Band and Its Effect on Low SNR Signal Detectionen
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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