NDLI: Algorithms for turbulence compensation in large adaptive optics systems

Content Provider	IEEE Xplore Digital Library
Author	Beghi, A. Cenedese, A. Masiero, A.
Copyright Year	2009
Description	Author affiliation: Dipartimento di Ingegneria dell'Informazione, Università di Padova, via Gradenigo 6/B, 35131, Italy (Beghi, A.; Cenedese, A.) \|\| Dipartimento di Tecnica e Gestione dei Sistemi Industriali, Università di Padova, Stradella San Nicola 3, 36100 Vicenza, Italy (Masiero, A.)
Abstract	The ever growing demand of more resolution for ground telescopes makes of fundamental importance the use of computationally efficient algorithms. In this paper we consider some efficient algorithms for the adaptive optics system of large telescopes. The main peculiarities of the considered procedures are to be effective and scalable to telescopes of whatever size. In particular, we propose a decoupled representation of the turbulent phase in which each of the subsystems models the temporal dynamic of a turbulent mode (e.g. the evolution of a Zernike mode if using the Zernike bases to represent the turbulence). The model matrices are identified using recently developed subspace methods. Then, using it in a Kalman-based approach, it provides good performances for the closed-loop system. Furthermore, we analyze and compare other possible approaches, such as PI controllers and AR predictive models. Since computational efficiency plays a very important role in this framework, we evaluate the obtained results both for the absolute performances and for the computational efforts necessary to obtain them. The proposed Kalman-based model ensures a good tradeoff between complexity and performances. Anyway, when the system allows to use some more resources, it can be worth to consider the use of high order AR models.
Starting Page	835
Ending Page	840
File Size	1399449
Page Count	6
File Format	PDF
ISBN	9781424438716
ISSN	01912216
DOI	10.1109/CDC.2009.5399535
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-12-15
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Adaptive optics
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

An adaptive multivariable disturbance rejection algorithm for helicopter turbulence compensation control

Improved compensation of atmospheric turbulence effects by multiple adaptive mirror systems

Wavefront Sensing And Compensation For The Human Eye

Adaptive turbulence compensation for multivariable nonlinear aircraft models

Atmospheric turbulence compensation using coherent optical adaptive techniques

The use of CPU, GPU and FPGA in real-time control of adaptive optics systems

Adaptive Optics Based Telescope Arrays Receiver for Compensation of Optical Turbulence Effects in a Deep-Space Optical Communication Link with Mars

Optimal compensation and implementation for adaptive optics systems

A mobile adaptive optics system for compensation of atmospheric turbulence-induced phase distortions

Algorithms for turbulence compensation in large adaptive optics systems

Similar Documents

An adaptive multivariable disturbance rejection algorithm for helicopter turbulence compensation control

Improved compensation of atmospheric turbulence effects by multiple adaptive mirror systems

Wavefront Sensing And Compensation For The Human Eye

Adaptive turbulence compensation for multivariable nonlinear aircraft models

Atmospheric turbulence compensation using coherent optical adaptive techniques

The use of CPU, GPU and FPGA in real-time control of adaptive optics systems

Adaptive Optics Based Telescope Arrays Receiver for Compensation of Optical Turbulence Effects in a Deep-Space Optical Communication Link with Mars

Optimal compensation and implementation for adaptive optics systems

A mobile adaptive optics system for compensation of atmospheric turbulence-induced phase distortions

Algorithms for turbulence compensation in large adaptive optics systems