Digital spectrum whitening followed by re-quantization introduces a previously unrecognized systematic distortion in the gain-versus-frequency response of radio telescopes, reaching levels problematic for 21 cm cosmology.
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Systematic Spectral Distortion from Digital Whitening in Radio Telescopes and Implications for 21 cm Cosmology
Digital spectrum whitening followed by re-quantization introduces a previously unrecognized systematic distortion in the gain-versus-frequency response of radio telescopes, reaching levels problematic for 21 cm cosmology.