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Wideband Beamspace Processing Using Orthogonal Modal Beamformers

Ward, Darren B; Abhayapala, Thushara


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...[Show more]

CollectionsANU Research Publications
Date published: 2011
Type: Journal article
Source: Journal of Signal Processing Systems: the journal of DSP technologies
DOI: 10.1007/s11265-009-0421-9


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