|Figure 10: Mean radial profiles for . Full lines: recorded profiles with and without AIC (no selection of images). Dashed lines: simulated profiles with and without AIC. Dotted line recorded profile with AIC with substraction of the profile of a diffraction pattern weighted by RT.<d2>. Horizontal scale: arcseconds on the sky|
From the values of the variances derived from the wavefront sensor data, we are able to simulate radial profiles given by AIC (Paper I). The simulation takes into account the spectral bandwith and the telescope obstruction. The observed profiles cannot be readily compared to the simulated ones, because of the energy contribution from the OPD variations. In order for the comparison to make sense we have substracted a diffraction pattern weighted by RT.<d2> from the observed profile which practically yields the profile we should have observed with AIC free from OPD fluctuations. In Figs. 10, 11, 12 we compare simulated and obtained profiles with and without AIC for three different conditions of turbulence (respectively , , ). From these figures we see that there is a good agreement between the simulated profiles and the "observed-OPD removed'' profiles, which shows the relevance of the analysis appearing in Paper I and regarding performance of AIC under turbulence. Then, when the mean values of the residual variances for a given AO are available, we can predict realistic and reliable profiles of the residual energy distribution at the output of AIC.
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