Logo Lanfrica
  • Home
  • Atlas
  • Insights
  • Docs
  • Sign in

© 2026 Lanfrica. All rights reserved. All copyrights of the resources shown on the Lanfrica website belong to the original copyright holders, unless explicitly stated otherwise.

Receiver design for the REACH global 21-cm signal experiment

Record type:

paper
Creator:
RoqRazCarEly
Publisher:
arXiv
Host:avatar
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 simulations as well as a discussion of the challenges intrinsic to highly-calibratable system development. Following this, we share laboratory results based on the calculation of noise wave parameters utilising an over-constrained least squares approach demonstrating a calibration RMSE of 80 mK for five hours of integration on a custom-made source with comparable impedance to that of the antenna used in the field. This paper therefore documents the state of the calibrator and data analysis in December 2022 in Cambridge before shipping to South Africa. 30 pages, 19 figures

Visit

doi.orgarxiv.org

Tags

Instrumentation and Methods for Astrophysics (astro-ph.IM)FOS: Physical sciencesFOS: Physical sciences

Licenses

Creative Commons Attribution 4.0 Internationalhttps://creativecommons.org/licenses/by/4.0/legalcode

Similar

Bright Source Subtraction Requirements For Redshifted 21 cm Measurements21-cm Intensity Mapping with MeerKAT SurveysThe visibility based Tapered Gridded Estimator (TGE) for the redshifted 21-cm power spectrumMitigating the Effects of Antenna-to-Antenna Variation on Redundant-Baseline Calibration for 21 cm CosmologyDetecting the Rise and Fall of 21 cm Fluctuations with the Murchison Widefield ArrayA 21 cm pilot survey for pulsars and transients using the Focal L-Band Array for the Green Bank Telescope

Bright Source Subtraction Requirements For Redshifted 21 cm Measurements

The \hi 21 cm transition line is expected to be an important probe into the cosmic dark ages and epo

21-cm Intensity Mapping with MeerKAT Surveys

Power spectrum from the 21-cm signal using HI Intensity mapping at low reshift has already

The visibility based Tapered Gridded Estimator (TGE) for the redshifted 21-cm power spectrum

We present the improved visibility based Tapered Gridded Estimator (TGE) for the power spectrum of t

Mitigating the Effects of Antenna-to-Antenna Variation on Redundant-Baseline Calibration for 21 cm Cosmology

The separation of cosmological signal from astrophysical foregrounds is a fundamental challenge for

Detecting the Rise and Fall of 21 cm Fluctuations with the Murchison Widefield Array

We forecast the sensitivity with which the Murchison Widefield Array (MWA) can measure the 21 cm p

A 21 cm pilot survey for pulsars and transients using the Focal L-Band Array for the Green Bank Telescope

Phased Array Feed (PAF) receivers are at the forefront of modern day radio astronomy. PAFs are curre