Development of an Optimized Real-Time Radio Transient Imager for LWA-SV

Hariharan Krishnan, James Kent, Jayce Dowell, Adam P. Bearsdley, Judd D. Bowman, Greg B. Taylor, Nithyanandhan Thyagarajan, Daniel Jacobs

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this paper, we describe our efforts towards the development of a real-time radio imaging correlator for the Long-Wavelength Array station in Sevilleta, New Mexico. We briefly discuss the direct-imaging algorithm and present the architecture of the GPU implementation. We describe the code-level modifications carried out for one of the modules in the algorithm that improves GPU-memory management and highlight the performance improvements achieved through it. We emphasize our ongoing efforts in tuning the overall run-time duration of the correlator which in turn is expected to increase the operating bandwidth in order to address the demands of wide-band capability for radio transient science.

Original languageEnglish (US)
Title of host publication2020 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium), USNC/URSI 2020 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages169-170
Number of pages2
ISBN (Electronic)9781946815088
DOIs
StatePublished - Jul 5 2020
Event2020 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium), USNC/URSI 2020 - Toronto, Canada
Duration: Jul 5 2020Jul 10 2020

Publication series

Name2020 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium), USNC/URSI 2020 - Proceedings

Conference

Conference2020 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium), USNC/URSI 2020
CountryCanada
CityToronto
Period7/5/207/10/20

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Signal Processing
  • Electrical and Electronic Engineering
  • Instrumentation

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