15 October 2012 Maximum subarray algorithms for use in optical and radio astronomy
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Abstract
The maximum sub-array algorithm has been implemented within a field programmable gate array as an efficient centroiding method for wavefront slope estimation. However, a convenient platform for this work is a graphics processor unit (GPU). Translation of the maximum subarray algorithm to a GPU has been performed and shows significant performance gains compared to a single-core CPU. Recently, this algorithm has been applied to radio telescope images acquired for the Australian square kilometer array pathfinder project. This paper provides an overview of the maximum subarray algorithm and shows how this can be utilized for optical and radio telescope applications.
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S. J. Weddell, T. Takaoka, T. Read, R. Candy, "Maximum subarray algorithms for use in optical and radio astronomy", Proc. SPIE 8500, Image Reconstruction from Incomplete Data VII, 85000O (15 October 2012); doi: 10.1117/12.928318; https://doi.org/10.1117/12.928318
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