Wideband beamspace processing using orthogonal modal beamformers

Thushara Dheemantha Abhayapala, Darren B. Ward

    Research output: Contribution to journalArticlepeer-review

    2 Citations (Scopus)

    Abstract

    We introduce a novel beamspace processing structure that can be used for narrowband or wideband sources located either in nearfield or farfield of a sensor array. Main features of the new structure are: (i) a single parameter is used to steer the processor to any desired radial distance; (ii) a set of fixed frequency invariant orthogonal beamformers are used to transform array data into beamspace; and (iii) consequently, only a single set of beamspace weights are needed to process wideband beamspace data. The utility of the novel structure is illustrated by applications in interference cancellation and direction/range estimation.

    Original languageEnglish
    Pages (from-to)277-286
    Number of pages10
    JournalJournal of Signal Processing Systems
    Volume63
    Issue number3
    DOIs
    Publication statusPublished - Jun 2011

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