Browsing by Subject "Optics, Adaptive"
Now showing items 1-12 of 12
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La aberración cromática en lentes intraoculares multifocales difractivas
(Universitat Politècnica de Catalunya, 2014-06-19)
Master thesis
Restricted access - confidentiality agreement -
Adaptive optics control with multi-agent model-free reinforcement learning
(2022-01-14)
Article
Open AccessWe present a novel formulation of closed-loop adaptive optics (AO) control as a multi-agent reinforcement learning (MARL) problem in which the controller is able to learn a non-linear policy and does not need a priori ... -
Binocular open-view system to perform estimations of aberrations and scattering in the human eye
(2015-11-10)
Article
Open AccessWe present a system that integrates a double-pass (DP) instrument and a Hartmann-Shack (HS) wavefront sensor to provide information not only on aberrations, but also on scattering occurring in the human eye. A binocular ... -
Capacity of coherent laser downlinks
(2014-06-01)
Article
Restricted access - publisher's policyAccurate knowledge of information data capacity between a spacecraft and optical ground stations is of utmost importance for assessing the feasibility of laser downlinks in future high bandwidth communication systems from ... -
Comparison of the Adaptive Optics Vision Analyzer and the KR-1 W for measuring ocular wave aberrations
(2016-07-19)
Article
Open Access -
El sensor de frente de onda Shack-Hartmann: una interesante herramienta científica que está saltando al terreno del aficionado en astronomía
(2022-12-01)
Article
Open AccessUna herramienta para la caracterización de la calidad óptica de un sistema formador de imagen es el sensor de frente de onda Shack-Hartmann, muy empleado en óptica adaptativa. Exploraremos la historia, principios de ... -
Model-free reinforcement learning with a non-linear reconstructor for closed-loop adaptive optics control with a pyramid wavefront sensor
(International Society for Photo-Optical Instrumentation Engineers (SPIE), 2022)
Conference report
Open AccessWe present a model-free reinforcement learning (RL) predictive model with a supervised learning non-linear reconstructor for adaptive optics (AO) control with a pyramid wavefront sensor (P-WFS). First, we analyse the ... -
One-shot focusing using the entropy as a merit function
(2012-09-01)
Article
Open Access -
Testing two techniques for wavefront analysis. Specific applications and comparative study
(2017-12-28)
Article
Open AccessThis work focuses on the description of two different techniques for characterizing wavefronts: by using Shack-Hartmann (SH) sensor and by using Point Diffraction Interferometer (PDI). Moreover describes application examples ... -
Two applications for teaching Telecommunication Engineering students the atmospheric effects on the optical channels. Applications in Astronomy, Mechanical Engineering and Telecommunications
(Universitat Politècnica de Catalunya (UPC), 2022)
Conference lecture
Open AccessAtmospheric turbulence is one of the limiting phenomena in interesting applications and fields such of optical telecommunications and Observational Astronomy. Both Telecommunication and Aerospace Engineering students may ... -
Two methods of analysis of wavefronts. Some examples and applications.
(2005)
Conference lecture
Open Access -
Wavefront techniques for characterizing antique optical instruments
(2015)
Conference lecture
Open Access
