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Nearfield Broadband Array Design Using a Radially Invariant Modal Expansioin

Kennedy, Rodney; Williamson, Robert; Abhayapala, Thushara


This paper introduces an efficient parameterization for the nearfield broadband beamforming problem with a single parameter to focus the beamformer to a desired operating radius and another set of parameters to control the actual broadband beampattern shape. The parameterization is based on an orthogonal basis set of elementary beampatterns by which an arbitrary beampattern can be constructed. A set of elementary beamformers are then designed for each elementary beampattern and the desired...[Show more]

CollectionsANU Research Publications
Date published: 2000
Type: Journal article
Source: Journal of the Acoustical Society of America
DOI: 10.1121/1.428311


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