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dc.contributor.advisorChairperson, Graduate Committee: Richard Wolff.en
dc.contributor.authorWeber, Raymond Joseph.en
dc.date.accessioned2013-06-25T18:43:20Z
dc.date.available2013-06-25T18:43:20Z
dc.date.issued2010en
dc.identifier.urihttps://scholarworks.montana.edu/xmlui/handle/1/2516
dc.description.abstractThis thesis proposes a design for a cognitive array system for next generation wireless communication systems, combining the techniques of cognitive radios and adaptive array systems. This novel array system allows for the possibility of greater spectral usage and reuse, and improved communication ranges. In this thesis, numerous algorithms were studied to map an RF environment in both spatial and spectral domains that would be useful in this system. Towards this goal, direction of arrival estimation, frequency sensing and spectral hole finding algorithms were studied, in addition to a joint frequency and direction of arrival estimation algorithm. Beamforming was also studied as a means of improving signal quality and increasing range. Once the direction to a target was found, localization and tracking were studied to further refine the target's position and change in position over time. After the algorithms were studied in simulation to determine their properties, hardware calibration was performed followed by laboratory tests of the methods with a uniform circular array testbed at Montana State University to verify the expected performances.en
dc.language.isoengen
dc.publisherMontana State University - Bozeman, College of Engineeringen
dc.subject.lcshWireless communication systems.en
dc.subject.lcshAntenna arrays.en
dc.titleDevelopment of a cognitive array system
dc.typeThesis
dc.rights.holderCopyright Raymond Joseph Weber 2010en
thesis.catalog.ckey1521973en
thesis.degree.committeemembersMembers, Graduate Committee: Yikun Huang (co-chair); Andy Olson; Brock LaMeresen
thesis.degree.departmentElectrical & Computer Engineering.en
thesis.degree.genreThesisen
thesis.degree.nameMSen
thesis.format.extentfirstpage1en
thesis.format.extentlastpage94en
mus.identifier.categoryEngineering & Computer Science
mus.relation.departmentElectrical & Computer Engineering.en_US
mus.relation.universityMontana State University - Bozemanen_US


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