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Digital 2-D/3-D Beam Filters For Adaptive Applebaum Receive And Transmit Arrays

Galabada Kankanamge, Nilan Udayanga
http://rave.ohiolink.edu/etdc/view?acc_num=akron1445799928

Abstract Details

2015, Master of Science, University of Akron, Electrical Engineering.
Linear and rectangular aperture arrays combined with multidimensional (MD) signal processing techniques enable directional enhancement of plane waves by creating highly directional radio frequency (RF) beams. Applications of such space-time filtering (beamforming) techniques can be found in areas such as radar, mobile communication, cognitive radio and radio astronomy. Main challenges in existing beamforming systems include high computational and hardware complexity, low operational bandwidth, and limited spatial selectivity. In this thesis, we employ the network resonant infinite impulse response (IIR) digital beam filter towards the performance enhancement of the existing beamforming systems and its related applications in terms of hardware complexity, spatial selectivity and operational bandwidth. Inherent properties of IIR beam filters, such as \emph{low complexity, higher operational bandwidth, multiple input multiple output (MIMO) nature, recursive structure and electronically steerablity} lead to improve directivity properties of the conventional beamformers and enable less complex directional enhancement for wideband applications. Low complexity directional spectrum sensing and feature extraction approach is proposed by combining network resonant beam filters with cyclostationary feature detectors. Spatial selectivity of the conventional beamformer is significantly enhanced by employing a MD MIMO beam filter as a pre-filter to the existing system. Furthermore, an electronically steerable transmit-beamformer based on space-time network resonant IIR discrete systems is proposed for wideband directed energy applications.
Arjuna Madanayake (Advisor)
Kye-Shin Lee (Committee Member)
Igor Tsukerman (Committee Member)
192 p.
Engineering
2-D IIR beam filters, 3-D IIR beam filters, Applebaum beamformers, Antenna arrays, Cognitive radio, Directional spectrum sensing, Transmit beamforming

Recommended Citations

Citations

  • Galabada Kankanamge, N. U. (2015). Digital 2-D/3-D Beam Filters For Adaptive Applebaum Receive And Transmit Arrays [Master's thesis, University of Akron]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=akron1445799928

    APA Style (7th edition)

  • Galabada Kankanamge, Nilan . Digital 2-D/3-D Beam Filters For Adaptive Applebaum Receive And Transmit Arrays. 2015. University of Akron, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=akron1445799928.

    MLA Style (8th edition)

  • Galabada Kankanamge, Nilan . "Digital 2-D/3-D Beam Filters For Adaptive Applebaum Receive And Transmit Arrays." Master's thesis, University of Akron, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=akron1445799928

    Chicago Manual of Style (17th edition)

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© 2015, all rights reserved.
This open access ETD is published by University of Akron and OhioLINK.