MeerKAT correlator-beamformer: a real-time processing back-end for astronomical observations

Andrew Van Der Byl, James A. Smith, Andrew Martens, Jason Manley, Tyrone Van Balla, Alec Rust, Amish Patel, Gareth Callanan, Adam Isaacson, Wesley New, Robin Van Wyk, Francois Kapp, Henno Kriel, Omer Mahgoub

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskriftPeer review

Sammanfattning

The MeerKAT radio telescope consists of 64 Gregorian-offset antennas located in the Karoo in the Northern Cape in South Africa. The antenna system consists of multiple subsystems working collaboratively to form a cohesive instrument capable of operating in multiple modes for defined science cases. We focus on the channelizing subsystem (F-engine), the correlation subsystem (X-engine), and the beamforming subsystem (B-engine). In the wideband instrument mode, the channelizing can produce 1024, 4096, or 32,768 channels with correlation up to 64 antennas. Narrowband mode decomposes sampled bandwidth into 32,768 channels. The F-engine also performs delay compensation, equalization, quantization, and grouping and ordering. The X-engine provides both correlation and beamforming computations (independently). This document is intended to be a stand-alone entity covering the channelizing, correlation, and beamforming processes for the MeerKAT radio telescope. This includes data reception, pre- and post-processing, and data transmission.

Originalspråkengelska
Artikelnummer011006
TidskriftJournal of Astronomical Telescopes, Instruments, and Systems
Volym8
Nummer1
DOI
StatusPublished - 2022 jan. 1

Ämnesklassifikation (UKÄ)

  • Signalbehandling

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