The adaptive secondary mirrors for the Large Binocular Telescope: a progress report

Riccardi, Armando; Brusa, Guido; Xompero, Marco; Zanotti, D.; Vecchio, Ciro Del; Salinari, Piero; Ranfagni, Piero; Gallieni, Daniele; Biasi, Roberto; Andrighettoni, Mario; Miller, Steve; Mantegazza, Paolo

doi:10.1117/12.551578

Cited by 17 publications

(11 citation statements)

References 11 publications

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“…A second solution for mirrors for ELTs is explored in the realization of the adaptive secondary mirror of the Large Binocular Telescope [17]. Fig.…”

Section: Deformable Mirrorsmentioning

confidence: 99%

Multi-Conjugate Adaptive Optics for ELTs: constraints and limitations

Ragazzoni

Roux

Arcidiacono

2005

Comptes Rendus. Physique

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“…A second solution for mirrors for ELTs is explored in the realization of the adaptive secondary mirror of the Large Binocular Telescope [17]. Fig.…”

Section: Deformable Mirrorsmentioning

confidence: 99%

Multi-Conjugate Adaptive Optics for ELTs: constraints and limitations

Ragazzoni

Roux

Arcidiacono

2005

Comptes Rendus. Physique

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“…Detailed descriptions of the LBT-AdOpt system and follow-ups of its development have been presented many times [1][2][3][4] and are updated in this same conference 5, 6 . The system is essentially subdivided into two largely independent subsystems: a pyramid based Wavefront Sensor 2, 3 (WFS), and an Adaptive Secondary mirror [7][8][9][10][11] (AdSec).…”

Section: The Lbt-adopt Systemmentioning

confidence: 99%

The LBT-AdOpt arbitrator: coordinating many loosely coupled processes

Fini

Tosetti

Busoni

et al. 2008

Advanced Software and Control for Astronomy II

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The LBT-AdOpt Supervisor is a collection of software processes which control the operations on the set of devices which make up the Adaptive Optics subsystem. The Arbitrator is the software component which coordinates the operations of the Supervisor in order to support operations at the telescope in reply to requests issued by the Instrument Control Software.In this paper we describe the architecture of the Arbitrator, based on an extremely modular, extensible and maintainable approach, designed using object-oriented techniques, that include intensive use of classes, exception handling and design patterns, as well as a clear division of tasks.

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“…The two AO loops feature implement high order correction using the two 672 actuators Adaptive Secondary Mirrors (ASM, see [5]) and the FPC control system measures and corrects the differential piston, tip and tilt in one of the interferometer arms.…”

Section: Dynamical Model Of the Lbtimentioning

confidence: 99%

Nulling interferometry and adaptive optics control system optimization

Ferrario

Wildi

2005

Techniques and Instrumentation for Detection of Exoplanets II

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We present a study of the LBT nulling interferometer (LBTI) performance considered from the control systems point of view. Focusing first on the fast path length corrector controller within the LBTI, we show that a simple modification of the controller algorithm reduces the modal tracking error by 50% or more depending on the system dynamics. WE show that this translates into a null depth improvement by a factor larger than 5. Next, we consider coupling the LBTI realtime controller to that of the AO to take advantage of the high order information that is available on the LBTI phase sensor and we show that here again, the global performance can be improved, albeit more modestly by 20%-30%.

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The adaptive secondary mirrors for the Large Binocular Telescope: a progress report

Cited by 17 publications

References 11 publications

Multi-Conjugate Adaptive Optics for ELTs: constraints and limitations

Multi-Conjugate Adaptive Optics for ELTs: constraints and limitations

The LBT-AdOpt arbitrator: coordinating many loosely coupled processes

Nulling interferometry and adaptive optics control system optimization

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