Costille Anne, Petit Cyril, Conan Jean-Marc, Kulcsár Caroline, Raynaud Henri-François, Fusco Thierry
ONERA, DOTA-HRA, B.P. 72, 29 avenue de la Division Leclerc, 92322 Chatillon Cedex, France.
J Opt Soc Am A Opt Image Sci Vis. 2010 Mar 1;27(3):469-83. doi: 10.1364/JOSAA.27.000469.
HOMER, the new bench developed at ONERA devoted to wide field adaptive optics (WFAO) laboratory research, has allowed the first experimental validations of multi-conjugate adaptive optics (MCAO) and laser tomography adaptive optics (LTAO) concepts with a linear quadratic Gaussian (LQG) control approach. Results obtained in LTAO in closed loop show the significant gain in performance brought by LQG control, which allows tomographic reconstruction. We present a calibration and model identification strategy. Experimental results are shown to be consistent with end-to-end simulations. These results are very encouraging and demonstrate robustness of performance with respect to inevitable experimental uncertainties. They represent a first step for the study of very large telescope (VLT) and extremely large telescopes (ELT) instruments.
