PEACC is a drone-deployed dual-source Gaussian noise emitter synchronized by GPS clocks that enables coherent calibration for 21 cm intensity mapping arrays, with tests showing the correlated channel outperforming auto-correlation across SNR regimes.
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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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PEACC -- Precision Emitter for 21 cm Array Coherent Calibration
PEACC is a drone-deployed dual-source Gaussian noise emitter synchronized by GPS clocks that enables coherent calibration for 21 cm intensity mapping arrays, with tests showing the correlated channel outperforming auto-correlation across SNR regimes.
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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.