Effect of scintillation on adaptive optics systems
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| Format: | Artículo científico |
| Sprache: | en |
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Universidad Nacional Autónoma de México
2002
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| _version_ | 1876426618490060800 |
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| author | V. V. Voitsekhovich |
| author_facet | V. V. Voitsekhovich |
| contents | Effect of scintillation on adaptive optics systems V. V. Voitsekhovich V. G. Orlov L. J. Sánchez Física, Astronomía y Matemáticas METHODS: NUMERICAL ATMOSPHERIC EFFECTS INSTRUMENTATION: ADAPTIVE OPTICS Image centroid measurements are the most used information in astronomicaladaptive optics systems for the wavefront reconstruction. However, because in realobservations these measurements are affected by scintillations, the reconstructedwavefront always contains some errors related to the scintillation effect. In thispaper we investigate the influence of scintillations on the image centroid by meansof computer simulations. The simulations have been performed for the case of weak-turbulence conditions for both varying and constant C2 n profile. The comparisonof the results shows that there is no strong dependence on the form of the C2nprofile: rather the magnitude of the effect is determined mainly by two integralparameters of a C2n profile: the integral turbulence strength (Fried parameter) andthe scintillation level (intensity variance). 2002 artículo científico 0185-1101 https://www.redalyc.org/articulo.oa?id=57138206 en http://www.redalyc.org/revista.oa?id=571 Revista Mexicana de Astronomía y Astrofísica application/pdf Universidad Nacional Autónoma de México Revista Mexicana de Astronomía y Astrofísica (México) Num.2 Vol.38 |
| format | Artículo científico |
| id | redalyc_57138206 |
| institution | Redalyc |
| language | en |
| publishDate | 2002 |
| publisher | Universidad Nacional Autónoma de México |
| spellingShingle | Effect of scintillation on adaptive optics systems V. V. Voitsekhovich Física, Astronomía y Matemáticas METHODS: NUMERICAL ATMOSPHERIC EFFECTS INSTRUMENTATION: ADAPTIVE OPTICS Effect of scintillation on adaptive optics systems V. V. Voitsekhovich V. G. Orlov L. J. Sánchez Física, Astronomía y Matemáticas METHODS: NUMERICAL ATMOSPHERIC EFFECTS INSTRUMENTATION: ADAPTIVE OPTICS Image centroid measurements are the most used information in astronomicaladaptive optics systems for the wavefront reconstruction. However, because in realobservations these measurements are affected by scintillations, the reconstructedwavefront always contains some errors related to the scintillation effect. In thispaper we investigate the influence of scintillations on the image centroid by meansof computer simulations. The simulations have been performed for the case of weak-turbulence conditions for both varying and constant C2 n profile. The comparisonof the results shows that there is no strong dependence on the form of the C2nprofile: rather the magnitude of the effect is determined mainly by two integralparameters of a C2n profile: the integral turbulence strength (Fried parameter) andthe scintillation level (intensity variance). 2002 artículo científico 0185-1101 https://www.redalyc.org/articulo.oa?id=57138206 en http://www.redalyc.org/revista.oa?id=571 Revista Mexicana de Astronomía y Astrofísica application/pdf Universidad Nacional Autónoma de México Revista Mexicana de Astronomía y Astrofísica (México) Num.2 Vol.38 |
| title | Effect of scintillation on adaptive optics systems |
| topic | Física, Astronomía y Matemáticas METHODS: NUMERICAL ATMOSPHERIC EFFECTS INSTRUMENTATION: ADAPTIVE OPTICS |
| url | https://www.redalyc.org/articulo.oa?id=57138206 |