Comparison of vibration mitigation controllers for adaptive optics systems

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dc.contributor.authorGuesalaga, Andres
dc.contributor.authorNeichel, Benoit
dc.contributor.authorRigaut, Francois
dc.contributor.authorOsborn, James
dc.contributor.authorGuzman, Dani
dc.date.accessioned2024-01-10T12:38:07Z
dc.date.available2024-01-10T12:38:07Z
dc.date.issued2012
dc.description.abstractVibrations are detrimental to the performance of modern adaptive optics (AO) systems. In this paper, we describe new methods tested to mitigate the vibrations encountered in some of the instruments of the Gemini South telescope. By implementing a spectral analysis of the slope measurements from several wavefront sensors and an imager, we can determine the frequencies and magnitude of these vibrations. We found a persistent vibration at 55 Hz with others occurring occasionally at 14 and 100 Hz. Two types of AO controllers were designed and implemented, Kalman and H-infinity, in the multiconjugate AO tip-tilt loop. The first results show a similar performance for these advanced controllers and a clear improvement in vibration rejection and overall performance over the classical integrator scheme. It is shown that the reduction in the standard deviation of the residual slopes (as measured by wavefront sensors) is highly dependent on turbulence, wind speed, and vibration conditions, ranging-in terms of slopes RMS value-from an almost negligible reduction for high speed wind to a factor of 5 for a combination of low wind and strong vibrations. (c) 2012 Optical Society of America
dc.description.funderChilean Research Council (CONICYT)
dc.fechaingreso.objetodigital2024-05-16
dc.format.extent16 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1364/AO.51.004520
dc.identifier.eissn2155-3165
dc.identifier.issn1559-128X
dc.identifier.pubmedidMEDLINE:22772126
dc.identifier.urihttps://doi.org/10.1364/AO.51.004520
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/76988
dc.identifier.wosidWOS:000306100100031
dc.information.autorucIngeniería;Guesalaga A ;S/I;63871
dc.information.autorucIngeniería;Guzman D;S/I;93452
dc.information.autorucIngeniería;Osborn J ;S/I;1009804
dc.issue.numero19
dc.language.isoen
dc.nota.accesocontenido parcial
dc.pagina.final4535
dc.pagina.inicio4520
dc.publisherOPTICAL SOC AMER
dc.revistaAPPLIED OPTICS
dc.rightsacceso restringido
dc.subjectPERFORMANCE
dc.subject.ods13 Climate Action
dc.subject.odspa13 Acción por el clima
dc.titleComparison of vibration mitigation controllers for adaptive optics systems
dc.typeartículo
dc.volumen51
sipa.codpersvinculados63871
sipa.codpersvinculados93452
sipa.codpersvinculados1009804
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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