Multiconjugate adaptive optics for astronomy
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 …
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
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 …
telescopes. Optimizing control and performance is a key issue for ever more demanding …
Adaptive optics predictive control with empirical orthogonal functions (EOFs)
Atmospheric wavefront prediction based on previous wavefront sensor measurements can
greatly enhance the performance of adaptive optics systems. We propose an optimal linear …
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 …
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 …
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 …
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 …
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 …
generated by the atmosphere. To do so simultaneous estimators of the atmospheric …
Distributed consensus-based Kalman filtering considering subspace decomposition
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 …
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 …
both Cn2 spatial priors and temporal dynamics have been used for LQG control for both …