From the 3 of 6 linked papers with an AI index.
6 papers
Closing the loop on-sky with a vector-Zernike wavefront sensor using a convolutional neural network as phase reconstructor
Francisco Oyarzún, Mathieu Motte, Cedric-Taissir Heritier +11
Context: The new giant segmented mirror telescopes will use adaptive optics to reach the fundamental limits in resolving power. To accomplish this, new wavefront sensors (WFS) have…
Impact of microlens shape on the performance of Laser Guide Star wavefront sensors for ELT-class telescopes
Paul Rouquette, Benoit Neichel, Cédric Taisir Heritierc +4
The paper quantifies how imperfections in microlens shapes degrade the centroid accuracy of laser guide star Shack‑Hartmann wavefront sensors on ELT‑class telescopes and evaluates…
DD4AO control law for RISTRETTO: robustness, real-time performance, and on-sky validation with PAPYRUS
Isaac Dinis, Muskan Schinde, Nicolas Blind +11
The paper presents the DD4AO frequency‑domain, data‑driven adaptive optics controller, its implementation in the RISTRETTO instrument, and on‑sky validation with the PAPYRUS system…
Estimation of the laser guide star uplink tip-tilt using aperture size diversity
Pierre Jouve, Thierry Fusco, Carlos M. Correia +3
The paper proposes a method to estimate the uplink tip‑tilt of a laser guide star using only telemetry from the launch telescope, by exploiting aperture size diversity and an LMMSE…
Data-calibrated point spread function prediction: General description of the method and demonstration on MUSE-NFM
Arseniy Kuznetsov, Benoit Neichel, Sylvain Oberti +1
Precise knowledge of the point spread function (PSF) underpins many data analysis steps in astronomy, from photometry and astrometry to source de-blending and deconvolution. In ada…
Slow focus sensor for the Keck I laser guide star adaptive optics system using focal plane wavefront sensing
Rafael M. Salgueiro, Carlos M. Correia, Benoit Neichel +7
Laser guide stars (LGSs) have been deployed for the last 20-30 years in ground-based astronomical telescopes to overcome the limited sky coverage of classical adaptive optics (AO)…