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Local Ensemble Transform Kalman Filter: a non-stationary control law for complex adaptive optics systems on ELTs
Morgan Gray, Cyril Petit, Sergey Rodionov +3
We propose a new algorithm for an adaptive optics system control law which allows to reduce the computational burden in the case of an Extremely Large Telescope (ELT) and to deal w…
Calibration of quasi-static aberrations in exoplanet direct-imaging instruments with a Zernike phase-mask sensor
M. N'Diaye, K. Dohlen, T. Fusco +1
Context. Several exoplanet direct imaging instruments will soon be in operation. They use an extreme adaptive optics (XAO) system to correct the atmospheric turbulence and provide…
Simultaneous exoplanet detection and instrument aberration retrieval in multispectral coronagraphic imaging
Marie Ygouf, Laurent M. Mugnier, David Mouillet +2
High-contrast imaging for the detection and characterization of exoplanets relies on the instrument's capability to block out the light of the host star. Some current post-processi…