Big telescope, big data: Towards exascale with the square kilometre array

Research output: Contribution to journalReview articlepeer-review


Unlike optical telescopes, radio interferometers do not image the sky directly but require specialized image formation algorithms. For the Square Kilometre Array (SKA), the computational requirements of this image formation are extremely demanding due to the huge data rates produced by the telescope. This processing will be performed by the SKA Science Data Processor facilities and a network of SKA Regional Centres, which must not only deal with SKA-scale data volumes but also with stringent science-driven image fidelity requirements. This article is part of a discussion meeting issue 'Numerical algorithms for high-performance computational science'.

Original languageEnglish
Article number20190060
JournalPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
Issue number2166
Publication statusPublished - 6 Mar 2020


  • Computing
  • Image processing
  • Radio astronomy


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