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Distributed sparse MVDR beamforming using the bi-alternating direction method of multipliers

O'Connor, Matt; Kleijn, W. Bastiaan; Abhayapala, Thushara

Description

Until now, distributed acoustic beamforming has focused on optimizing for a beamformer over an entire network, with each node contributing to the beamformer output. We present a novel approach that introduces sparsity to this beamformer computation, where we attempt to optimize for a subset of nodes within the network that produce SNR gains roughly equivalent to that of the optimal MVDR case. Due to the physical nature of sound, this approach trades a small loss in SNR for a large reduction in...[Show more]

CollectionsANU Research Publications
Date published: 2016
Type: Conference paper
URI: http://hdl.handle.net/1885/108607
DOI: 10.1109/ICASSP.2016.7471646

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