Multiconjugate adaptive optics for astronomy

F Rigaut, B Neichel - Annual Review of Astronomy and …, 2018 - annualreviews.org
Since the year 2000, adaptive optics (AO) has seen the emergence of a variety of new
concepts addressing particular science needs; multiconjugate adaptive optics (MCAO) is …

First on-sky SCAO validation of full LQG control with vibration mitigation on the CANARY pathfinder

G Sivo, C Kulcsár, JM Conan, HF Raynaud… - Optics express, 2014 - opg.optica.org
Adaptive optics provides real time correction of wavefront disturbances on ground based
telescopes. Optimizing control and performance is a key issue for ever more demanding …

Adaptive optics predictive control with empirical orthogonal functions (EOFs)

O Guyon, J Males - arxiv preprint arxiv:1707.00570, 2017 - arxiv.org
Atmospheric wavefront prediction based on previous wavefront sensor measurements can
greatly enhance the performance of adaptive optics systems. We propose an optimal linear …

Using the and wind profiler method with wide-field laser-guide-stars adaptive optics to quantify the frozen-flow decay

A Guesalaga, B Neichel, A Cortés… - Monthly Notices of …, 2014 - academic.oup.com
We use the spatio-temporal cross-correlations of slopes from five Shack–Hartmann
wavefront sensors to analyse the temporal evolution of the atmospheric turbulence layers at …

Spatio-angular minimum-variance tomographic controller for multi-object adaptive-optics systems

CM Correia, K Jackson, JP Véran, D Andersen… - Applied …, 2015 - opg.optica.org
Multi-object astronomical adaptive optics (MOAO) is now a mature wide-field observation
mode to enlarge the adaptive-optics-corrected field in a few specific locations over tens of …

Adaptive distributed Kalman filtering with wind estimation for astronomical adaptive optics

P Massioni, L Gilles, B Ellerbroek - JOSA A, 2015 - opg.optica.org
In the framework of adaptive optics (AO) for astronomy, it is a common assumption to
consider the atmospheric turbulent layers as “frozen flows” sliding according to the wind …

Zonal-based high-performance control in adaptive optics systems with application to astronomy and satellite tracking

L Prengère, C Kulcsár, HF Raynaud - JOSA A, 2020 - opg.optica.org
This paper presents a model-based approach to adaptive optics (AO) control based on a
zonal (ie, pixelized) representation of the incoming atmospheric turbulence. Describing the …

Image-based automatic wind velocity profiler for adaptive optics

SJ Diaz, C Tejos, A Guesalaga - Monthly Notices of the Royal …, 2024 - academic.oup.com
Adaptive optics (AO) systems correct optical phase aberrations of the incoming light
generated by the atmosphere. To do so simultaneous estimators of the atmospheric …

Distributed consensus-based Kalman filtering considering subspace decomposition

AR del Nozal, L Orihuela, P Milláan - IFAC-PapersOnLine, 2017 - Elsevier
The aim of this paper is to provide a new observer structure able to deal with the distributed
estimation of a discrete-time linear system from a network of agents. The main result is an …

LQG adaptive optics control with wind-dependent turbulent models

R Juvénal, C Kulcsár, HF Raynaud… - … Optics Systems V, 2016 - spiedigitallibrary.org
AO optimal control relies centrally on a stochastic model of the turbulence. Models based on
both Cn2 spatial priors and temporal dynamics have been used for LQG control for both …