The fundamental issue of residual phase variance minimization in adaptive optics (AO)
loops is addressed here from a control engineering perspective. This problem, when …

Adaptive Optics (AO) systems enable to compensate the adverse effects of atmospheric
turbulence on ground-based telescopes' images in real time, using a deformable mirror …

We present a first experimental validation of vibration filtering with a Linear Quadratic
Gaussian (LQG) control law in Adaptive Optics (AO). A quasi-pure mechanical vibration is …

L'optique adaptative (OA), installée aujourd'hui sur tous les très grands télescopes
astronomiques, permet de s' affranchir de la limitation en résolution angulaire imposée aux …

We present a comprehensive analysis of the linear quadratic Gaussian control approach
applied to adaptive optics (AO) and multiconjugated AO (MCAO) based on numerical and …

Adaptive optics (AO) systems have to correct tip–tilt (TT) disturbances down to a fraction of
the diffraction-limited spot. This becomes a key issue for very or extremely large telescopes …

C_n^ 2 profile monitoring usually relies on the exploitation of wavefront slope correlations or
of scintillation pattern correlations. Scintillation is rather sensitive to high turbulence layers …

This paper presents a linear-quadratic-Gaussian (LQG) design based on the equivalent
discrete-time model of an adaptive optics (AO) system. The design model incorporates …

This paper addresses the application of observer-based control techniques for the adaptive
optics system of the LBT telescope. In such a context, attention is focused on the use of …

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 …