Search Results for author: Luke Pratley

Found 3 papers, 2 papers with code

A fast and exact $w$-stacking and $w$-projection hybrid algorithm for wide-field interferometric imaging

1 code implementation24 Jul 2018 Luke Pratley, Melanie Johnston-Hollitt, Jason D. McEwen

We show that the same calculation can be performed with a radially symmetric $w$-projection kernel, where we use one dimensional adaptive quadrature to calculate the resulting Hankel transform, decreasing the computation required for kernel generation by several orders of magnitude, whilst preserving the accuracy.

Instrumentation and Methods for Astrophysics

Robust sparse image reconstruction of radio interferometric observations with purify

1 code implementation7 Oct 2016 Luke Pratley, Jason D. McEwen, Mayeul d'Avezac, Rafael E. Carrillo, Alexandru Onose, Yves Wiaux

However, they produce reconstructed inter\-ferometric images that are limited in quality and scalability for big data.

Instrumentation and Methods for Astrophysics

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