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Table 2.

Performance quality of the ML and WLS estimators relative to the nominal bound expressed in terms of the indicator and , respectively, in the undersampled regime (space-based and ground-based are on the left and right, respectively).

FWHM ML error [%] WLS error [%]
0.2 0.03/0.02 25/45
0.3 0.03/0.02 5.5/8.0
0.4 0.01/0.03 1.9/2.8
0.5 0.01/0.04 1.4/2.3

Notes. The results are presented for different values of FWHM (measured in arcsec) with F̃ = 20 004 e, B̃ = 25 e (space-based), B̃ = 626 e (ground-based), and Δx = 0.2 arcsec.

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