Fig. 12.
Test of reconstruction of a segment-level phase error with COFFEE in simulation only: (a) theoretical phase to reconstruct: a 1 rad piston is applied on the central segment, (b) phase reconstructed with COFFEE, (c) difference between the two previous phases, (d) cross-sections of the three phases of Fig. 12 along the vertical axis. We can notice in particular the reconstruction of a low-order aberration that is not present in the theoretical phase.
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