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SARA-PPD: Preconditioned primal-dual algorithm for radio-interferometric imaging

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Ada Coda
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SARA-PPD: Preconditioned primal-dual algorithm for radio-interferometric imaging

Postby Ada Coda » Sat Jul 06, 2019 8:30 am

SARA-PPD: Preconditioned primal-dual algorithm for radio-interferometric imaging

Abstract: SARA-PPD is a proof of concept MATLAB implementation of an acceleration strategy for a recently proposed primal-dual distributed algorithm. The algorithm optimizes resolution by accounting for the correct noise statistics, leverages natural weighting in the definition of the minimization problem for image reconstruction, and optimizes sensitivity by enabling accelerated convergence through a preconditioning strategy incorporating sampling density information. This algorithm offers efficient processing of large-scale data sets that will be acquired by next generation radio-interferometers such as the Square Kilometer Array.

Credit: Onose, Alexandru; Dabbech, Arwa; Wiaux, Yves

Site: https://basp-group.github.io/SARA-PPD/
https://ui.adsabs.harvard.edu/abs/2017MNRAS.469..938O

Bibcode: 2019ascl.soft07005O

ID: ascl:1907.005

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