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Tip-tilt modelling and control for GeMS: a performance comparison of identification techniques

  • Author(s): Juvenal, Rémy
  • Kulcsar, Caroline
  • Raynaud, Henri-François
  • Conan, Jean-Marc
  • Petit, Cyril
  • Leboulleux, Lucie
  • Sivo, Gaetano
  • Garrel, Vincent
  • et al.
Abstract

Perturbation modelling and vibration compensation are key issues to reach better performance in adaptive optics systems for VLTs and future ELTs. In this context, an LQG controller is to be implemented for the tip-tilt loop of the multi-conjugate adaptive optics instrument GeMS. The performance of several models, associated with their identification techniques are considered for tip-tilt disturbance.

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