Wideband beamspace processing using orthogonal modal beamformers

Thushara Dheemantha Abhayapala; Darren B. Ward

doi:10.1007/s11265-009-0421-9

Wideband beamspace processing using orthogonal modal beamformers

Thushara Dheemantha Abhayapala
, Darren B. Ward

Research output: Contribution to journal › Article › peer-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 language	English
Pages (from-to)	277-286
Number of pages	10
Journal	Journal of Signal Processing Systems
Volume	63
Issue number	3
DOIs	https://doi.org/10.1007/s11265-009-0421-9
Publication status	Published - Jun 2011

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title = "Wideband beamspace processing using orthogonal modal beamformers",

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.",

keywords = "Adaptive arrays, Array processing, Broadband beamforming, Direction estimation, Interference cancellation, Nearfield, Sensor arrays",

author = "Abhayapala, \{Thushara Dheemantha\} and Ward, \{Darren B.\}",

year = "2011",

month = jun,

doi = "10.1007/s11265-009-0421-9",

language = "English",

volume = "63",

pages = "277--286",

journal = "Journal of Signal Processing Systems",

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T1 - Wideband beamspace processing using orthogonal modal beamformers

AU - Abhayapala, Thushara Dheemantha

AU - Ward, Darren B.

PY - 2011/6

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N2 - 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.

AB - 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.

KW - Adaptive arrays

KW - Array processing

KW - Broadband beamforming

KW - Direction estimation

KW - Interference cancellation

KW - Nearfield

KW - Sensor arrays

UR - https://www.scopus.com/pages/publications/79956371274

U2 - 10.1007/s11265-009-0421-9

DO - 10.1007/s11265-009-0421-9

M3 - Article

SN - 1939-8018

VL - 63

SP - 277

EP - 286

JO - Journal of Signal Processing Systems

JF - Journal of Signal Processing Systems

IS - 3

ER -

Wideband beamspace processing using orthogonal modal beamformers

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