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Table 4.
Average normalized absolute difference between the input power spectrum and the recovered power spectrum of the H I plus noise signal (NRec) for the central frequency (≈1.1 GHz) with β = 0.25.
Number of feeds | 28 (D.R.) | 31 (HEX) | 56 (D.R.) | ||
---|---|---|---|---|---|
Integration time (y) | 1 | 2 | 5 | 1 | 1 |
NRec (%) GNILC | 21.43 | 20.12 | 14.31 | 21.05 | 19.6 |
NRec (%) PCA | 20.37 | 18.93 | 12.87 | 20.13 | 18.2 |
Notes. “D.R.” stands for “double rectangular” and “HEX” for “hexagonal arrays”.
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