Adaptive optics, transfer loops modeling

Corinne Boyer; Jean-Paul Gaffard

doi:10.1117/12.48793

1 December 1991 Adaptive optics, transfer loops modeling

Corinne Boyer, Jean-Paul Gaffard

Proceedings Volume 1542, Active and Adaptive Optical Systems; (1991) https://doi.org/10.1117/12.48793
Event: San Diego, '91, 1991, San Diego, CA, United States

Abstract

An adaptive optical system dedicated to high resolution imaging can be modelized in terms of transfer loops. This model permits one to estimate the response of such a system to time-varying wavefront perturbation. A block diagram describing the closed loop of the adaptive optics of the Come-On project is given and a theoretical expression expressed in terms of the Z transform is found for the case of a nodal approach. In a second step, identification methods are used to determine the best parameter values of these nodal models. Finally, the responses of these models to known perturbations are compared with the experimental data recorded during the Come-On experiments. The same analyses are conducted for modal models. In these two cases, the results are found to be in good agreement.

Citation Download Citation

Corinne Boyer and Jean-Paul Gaffard "Adaptive optics, transfer loops modeling", Proc. SPIE 1542, Active and Adaptive Optical Systems, (1 December 1991); https://doi.org/10.1117/12.48793

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