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25 July 2024 Architecture and implementation of a 25000 FPS radio camera on the long wavelength array
Karthik Reddy, Judd D. Bowman, Jayce Dowell, Greg B. Taylor, Adam P. Beardsley, Craig Taylor
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Proceedings Volume 13101, Software and Cyberinfrastructure for Astronomy VIII; 131011C (2024) https://doi.org/10.1117/12.3012524
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan
Abstract
A highly optimized E-field Parallel Imaging Correlator (EPIC), currently under commissioning on the Long Wavelength Array in Sevilleta, New Mexico, can image the sky at a rate of 25,000 FPS per polarization and frequency. The system consists of six processing nodes, each producing images of the visible sky with a 1-degree spatial resolution at an 80 ms temporal resolution, covering a 3.2 MHz spectral window below 100 MHz, yielding a total bandwidth of 19.2 MHz. Light curves for selected sources of interest will be extracted from each image into a distributed database, and 5-minute accumulations are archived on the disk for further analysis. In this paper, we describe the components of our real-time imaging system, designed as a plug-and-play solution to deploy EPIC on similar arrays with only minor modifications.
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(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.
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Karthik Reddy, Judd D. Bowman, Jayce Dowell, Greg B. Taylor, Adam P. Beardsley, and Craig Taylor "Architecture and implementation of a 25000 FPS radio camera on the long wavelength array", Proc. SPIE 13101, Software and Cyberinfrastructure for Astronomy VIII, 131011C (25 July 2024); https://doi.org/10.1117/12.3012524
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KEYWORDS
Imaging systems
Radio astronomy
Real-time computing
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