51 citations · 149 across the 6 of their papers we have counts for
6 papers
Optimal CCD readout by digital correlated double sampling
Cristobal Alessandri, Angel Abusleme, Dani Guzman +3
Digital correlated double sampling (DCDS), a readout technique for charge-coupled devices (CCD), is gaining popularity in astronomical applications. By using an oversampling ADC an…
Theoretical Framework and Simulation Results for Implementing Weighted Multiple Sampling in Scientific CCDs
Cristobal Alessandri, Dani Guzman, Angel Abusleme +6
The Digital Correlated Double Sampling (DCDS) is a technique based on multiple analog-to-digital conversions of every pixel when reading a CCD out. This technique allows to remove…
Beam shaping for laser-based adaptive optics in astronomy
Clémentine Béchet, Andrés Guesalaga, Benoit Neichel +5
The availability and performance of laser-based adaptive optics (AO) systems are strongly dependent on the power and quality of the laser beam before being projected to the sky. Fr…
Atmospheric turbulence profiling using multiple laser star wavefront sensors
Angela Cortés, Benoit Neichel, Andrés Guesalaga +3
This paper describes the data preprocessing and reduction methods together with SLODAR analysis and wind profiling techniques for GeMS: the Gemini MCAO System. The wavefront gradie…
Using artificial neural networks for open-loop tomography
James Osborn, Francisco Javier De Cos Juez, Dani Guzman +4
Modern adaptive optics (AO) systems for large telescopes require tomographic techniques to reconstruct the phase aberrations induced by the turbulent atmosphere along a line of sig…
Shack-Hartmann sensor improvement using optical binning
Alastair Basden, Deli Geng, Dani Guzman +3
We present a design improvement for a recently proposed type of Shack-Hartmann wavefront sensor that uses a cylindrical (lenticular) lenslet array. The improved sensor design uses…