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 language | English |
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Pages (from-to) | 277-286 |
Number of pages | 10 |
Journal | Journal of Signal Processing Systems |
Volume | 63 |
Issue number | 3 |
DOIs | |
Publication status | Published - Jun 2011 |