First laboratory validation of vibration filtering with LQG control law for adaptive optics.
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 generated on a classic AO bench and filtered by the control law, leading to an improvement of the Strehl Ratio and image stability. Vibration filtering may be applied to any AO system, but these results are of particular interest for eXtrem AO, and for instance for the SPHERE AO design, where high performance is required.
Office National d'Etudes et de Recherches Aérospatiales, BP 72, 92322 Châtillon, France. cyril.petit@onera.fr
Cyril
C
Petit
Jean-Marc
JM
Conan
Caroline
C
Kulcsár
Henri-Francois
HF
Raynaud
Thierry
T
Fusco
D003198:Computer Simulation; D005374:Filtration / Q000379:methods*; D007753:Laboratories; D008027:Light; D016014:Linear Models; D015233:Models, Statistical; D016011:Normal Distribution; D055095:Optics and Photonics; D012542:Scattering, Radiation; D014732:Vibration