dc.contributor.advisor | Ho, Dominic K. C. | eng |
dc.contributor.author | Li, Yunhong | eng |
dc.date.issued | 2005 | eng |
dc.date.submitted | 2005 Summer | eng |
dc.description | The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. | eng |
dc.description | Title from title screen of research.pdf file viewed on (July 18, 2006) | eng |
dc.description | Includes bibliographical references. | eng |
dc.description | Vita. | eng |
dc.description | Thesis (Ph. D.) University of Missouri-Columbia 2005. | eng |
dc.description | Dissertations, Academic -- University of Missouri--Columbia -- Electrical and computer engineering. | eng |
dc.description.abstract | Sensor arrays have been used widely in applications including radar, sonar, seismology, biomedicine, communications and imaging. A very popular type of sensor array is circular array, which has almost invariant array pattern in azimuthal plane. This dissertation considers beamformer design and direction finding for a broadband source using concentric ring array (CRA) that contains many concentric rings of different radii. The multi-ring structure of a CRA has several advantages including the flexibility in array pattern synthesis and adaptive array design. We first proposed three CRA array pattern synthesis techniques, which can be used to control the side lobe and/or main lobe width of the array pattern of a deterministic broadband beamformer. We then proposed a flexible partially adaptive broadband beamformer design based on element-space approach. Finally, we proposed an efficient direction finding technique for broadband source using CRA. The proposed design techniques are corroborated by experiments from simulated as well as measured data. | eng |
dc.identifier.merlin | b55894264 | eng |
dc.identifier.uri | https://hdl.handle.net/10355/4110 | |
dc.identifier.uri | https://doi.org/10.32469/10355/4110 | eng |
dc.language | English | eng |
dc.publisher | University of Missouri--Columbia | eng |
dc.relation.ispartofcommunity | University of Missouri--Columbia. Graduate School. Theses and Dissertations | eng |
dc.rights.license | This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 License. Copyright held by author. | |
dc.subject.lcsh | Array processors | eng |
dc.subject.lcsh | Signal processing -- Digital techniques | eng |
dc.subject.lcsh | Parabolic operators | eng |
dc.subject.lcsh | Antennas (Electronics) | eng |
dc.title | Broadband beamforming and direction finding using concentric ring array | eng |
dc.type | Thesis | eng |
thesis.degree.discipline | Electrical and computer engineering (MU) | eng |
thesis.degree.grantor | University of Missouri--Columbia | eng |
thesis.degree.level | Doctoral | eng |
thesis.degree.name | Ph. D. | eng |