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    • University of Missouri-Columbia
    • Graduate School - MU Theses and Dissertations (MU)
    • Theses and Dissertations (MU)
    • Dissertations (MU)
    • 2005 Dissertations (MU)
    • 2005 MU dissertations - Freely available online
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    Broadband beamforming and direction finding using concentric ring array

    Li, Yunhong
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    [PDF] short.pdf (18.93Kb)
    [PDF] research.pdf (4.245Mb)
    Date
    2005
    Format
    Thesis
    Metadata
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    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.
    URI
    https://hdl.handle.net/10355/4110
    https://doi.org/10.32469/10355/4110
    Degree
    Ph. D.
    Thesis Department
    Electrical and computer engineering (MU)
    Rights
    This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 License. Copyright held by author.
    Collections
    • Electrical Engineering and Computer Science electronic theses and dissertations (MU)
    • 2005 MU dissertations - Freely available online

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