PULsar SKArab-based system for Radio astronomy (PULSKAR)

Andrea Melis; Alessandro Cabras; Carlo Migoni; Maura Pilia; Matteo Trudu

doi:10.1117/12.3020171

16 August 2024 PULsar SKArab-based system for Radio astronomy (PULSKAR)

Andrea Melis, Alessandro Cabras, Carlo Migoni, Maura Pilia, Matteo Trudu

Author Affiliations +

Proceedings Volume 13102, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XII; 131022J (2024) https://doi.org/10.1117/12.3020171
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Conference Poster

Abstract

SKARAB is the acronym for Square Kilometer Array Reconfigurable Application Board, a digital platform that was initially designed for the MeerKAT digital correlator. Being equipped with a reprogrammable chip like a Virtex7 FPGA, SKARAB is a not application-specific computing node 19’’ 1U dimension, thus suitable to be employed for single-dish applications as well. Here we present a SKARAB pulsar machine that has been engineered and built for the Sardinia Radio Telescope (SRT, Italy). The high dynamic range provided by the high-performing ADC mezzanine card (which provides digital samples coded with up to 16 bits) coupled with the SKARAB guarantees a proper functionality also in presence of strong Radio Frequency Interference (RFI), and the 4x40G I/O mezzanine card allows handling data rates up to 160 Gbit/sec.

Both pulsar search and pulsar timing are provided in different bandwidths and number of channels; we also present on-field results that we have achieved at the Sardinia Radio Telescope by observing the pulsar B0355+54 at 5 GHz.

Citation Download Citation

Andrea Melis, Alessandro Cabras, Carlo Migoni, Maura Pilia, and Matteo Trudu "PULsar SKArab-based system for Radio astronomy (PULSKAR)", Proc. SPIE 13102, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XII, 131022J (16 August 2024); https://doi.org/10.1117/12.3020171

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