Results 31 to 40 of about 21,086 (310)

Optical design of the Wavefront sensing in the ULTIMATE-Subaru Ground Layer Adaptive Optics system

, 2022
ULTIMATE-Subaru (Ultra-wide Laser Tomographic Imager and MOS with AO Transcendent Exploration) is the next-generation development project of the Subaru Telescope in Hawaii, U.S.A.
Rigaut, Francois, Noelia Martínez Rey, David Chandler, Vaughn, Israel, Israel Vaughn, Yosuke Minowa, Rey, Noelia Martinez, Céline d'Orgeville, Herrald, Nicholas, D'Orgeville, Celine, Koki Terao, Schofield, Warrick, Warrick Schofield, Yoshito . Ono, Terao, Koki, Minowa, Yosuke, Yoko Tanaka, Ono, Yoshito, Akiyama, Masayuki, Chandler, David, Masayuki Akiyama, Yoshida, Hiroshige, Tanaka, Yoko, Haynes, Dionne, Nicholas Herrald, Hiroshige Yoshida, Dionne Haynes, François Rigaut   +27 more
core   +1 more source

Flow Field Estimation with Distortion Correction Based on Multiple Input Deep Convolutional Neural Networks and Hartmann–Shack Wavefront Sensing

Photonics
The precise estimation of fluid motion is critical across various fields, including aerodynamics, hydrodynamics, and industrial fluid mechanics. However, refraction at complex interfaces in the light path can cause image deterioration and lead to severe ...
Zeyu Gao, Xinlan Ge, Licheng Zhu, Shiqing Ma, Ao Li, Lars Büttner, Jürgen Czarske, Ping Yang   +7 more
doaj   +1 more source

Performance of Software-Based Solar Adaptive Optics System [PDF]

, 2007
This paper reports the performance of our modified adaptive optics system for solar observations. This system operates at a frame rate of about 400 Hz and has the closed-loop cutoff frequency at 105 Hz. The results of the laboratory experiments show that
Noto, Yuuki, Miura, Noriaki, Baba, Naoshi, Ueno, Satoru, Kato, Shuusuke, Kuwamura, Susumu, Hanaoka, Yoichirou, Kitai, Reizaburou   +7 more
core   +1 more source

Solar adaptive optics system based on software control [PDF]

, 2006
An adaptive optics (AO) system for solar observations at the Hida Observatory is described, which is composed of commercially available low-cost devices and fully controlled with software in standard personal computers. This AO system operates at a frame
Miura, Noriaki, Baba, Naoshi, Kuwamura, Susumu, Ueno, Satoru, Hanaoka, Yoichirou, Kobayashi, Takashi, Sakuma, Shinnosuke, Kitai, Reizaburou   +7 more
core   +1 more source

Object-oriented Matlab adaptive optics toolbox [PDF]

, 2014
Object-Oriented Matlab Adaptive Optics (OOMAO) is a Matlab toolbox dedicated to Adaptive Optics (AO) systems. OOMAO is based on a small set of classes representing the source, atmosphere, telescope, wavefront sensor, Deformable Mirror (DM) and an imager ...
Correia, C, Conan, Rodolphe, R. Conan, C. Correia   +3 more
core   +1 more source

The Giant Magellan Telescope adaptive optics program [PDF]

, 2016
The Giant Magellan Telescope adaptive optics system will be an integral part of the telescope, providing laser guide star generation, wavefront sensing, and wavefront correction to most of the currently envisioned instruments.
Arcidiacono, Carmelo, Carbonaro, Luca, Conan, Rodolphe, d'Orgeville, Celine, Brusa-Zappellini, Guido, Bouchez, A, Bonaglia, Marco, Bennet, Francis, Uhlendorf, Kristina, Acton, D. Scott, Biliotti, Valdemaro, Agapito, Guido, Briguglio, Runa, Parcell, Simon, Busoni, Lorenzo, Piatrou, Piotr, Espeland, Brady, Gardhouse, William, Price, Ian   +18 more
core   +1 more source

FPGA-accelerated adaptive optics wavefront control

, 2022
Paper 897802The speed of real-time adaptive optical systems is primarily restricted by the data processing hardware and computational aspects. Furthermore, the application of mirror layouts with increasing numbers of actuators reduces the bandwidth ...
Reger, Johann, Mauch, Steffen, Goy, Matthias, Appelfelder, Michael, Tünnermann, Andreas, Reinlein, Claudia, Beckert, Erik   +6 more
core   +1 more source

Optimization of Iterative Control Algorithms for High-Resolution Adaptive Optics Systems

IEEE Photonics Journal
As the number of wavefront sensor subapertures and deformable mirror actuators in adaptive optics systems increases, the computational time of the direct gradient wavefront control algorithm is excessively long, which is a major factor affecting the ...
Shenghu Liu, Wang Zhao, Shuai Wang, Kangjian Yang, Ping Yang, Hongli Guan, Han Guo, Ruifeng He   +7 more
doaj   +1 more source

Mode-Voltage Constrained Control for Adaptive Optics System

IEEE Photonics Journal
In the adaptive optics system of astronomical observation, the deformable mirror and the tip/tilt mirror are coupled during the correction process.
Ruitao Wang, Youming Guo, Nanfei Yan, Ying Yang, Lanqiang Zhang, Qiong Tu, Lingxiao Li, Changhui Rao   +7 more
doaj   +1 more source

Optical calibration and performance of the adaptive secondary mirror at the Magellan telescope

Scientific Reports, 2018
In this paper we describe the procedure for the optical calibration of large size deformable mirrors, acting as wavefront correctors for adaptive optics systems.
Runa Briguglio, Fernando Quirós-Pacheco, Jared R. Males, Marco Xompero, Armando Riccardi, Laird M. Close, Katie M. Morzinski, Simone Esposito, Enrico Pinna, Alfio Puglisi, Lauren Schatz, Kelsey Miller   +11 more
doaj   +1 more source