New method maps 21cm cosmological structures to ~100m reflection scales for HERA-like and EDGES-like instruments, showing near-field beam calibration is required.
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Digital whitening and re-quantization in radio telescopes introduce subtle systematic spectral distortions that affect 21 cm cosmology observations.
Summarizes observational lessons on simulation pipelines and systematic mitigation from SKAO precursors for Cosmic Dawn and EoR studies.
citing papers explorer
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Mapping Cosmological Signal Scales to Beam Calibration Requirements in 21cm Experiments and Implications for Near-Field Measurement
New method maps 21cm cosmological structures to ~100m reflection scales for HERA-like and EDGES-like instruments, showing near-field beam calibration is required.
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Systematic Spectral Distortion from Digital Whitening in Radio Telescopes and Implications for 21 cm Cosmology
Digital whitening and re-quantization in radio telescopes introduce subtle systematic spectral distortions that affect 21 cm cosmology observations.
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Observations of the Cosmic Dawn and Epoch of Reionization with the SKAO: Observational Lessons Learned from Precursors and Pathfinder Instruments
Summarizes observational lessons on simulation pipelines and systematic mitigation from SKAO precursors for Cosmic Dawn and EoR studies.