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Receiver design for the REACH global 21-cm signal experiment
Ian L. V. Roque, Nima Razavi-Ghods, Steven H. Carey +35
We detail the the REACH radiometric system designed to enable measurements of the 21-cm neutral hydrogen line. Included is the radiometer architecture and end-to-end system simulat…
Informing antenna design for sky-averaged 21-cm experiments using a simulated Bayesian data analysis pipeline
Dominic Anstey, John Cumner, Eloy de Lera Acedo +1
Global 21cm experiments aim to measure the sky averaged HI absorption signal from cosmic dawn and the epoch of reionisation. However, antenna chromaticity coupling to bright foregr…
Bayesian noise wave calibration for 21-cm global experiments
I. L. V. Roque, W. J. Handley, N. Razavi-Ghods
Detection of millikelvin-level signals from the 'Cosmic Dawn' requires an unprecedented level of sensitivity and systematic calibration. We report the theory behind a novel calibra…