Fractal nature of atmospherically degraded wavefronts: an aid to prediction

C. Schwartz; Gideon Baum; Erez N. Ribak; Steven G. Lipson

doi:10.1117/12.176050

31 May 1994 Fractal nature of atmospherically degraded wavefronts: an aid to prediction

C. Schwartz, Gideon Baum, Erez N. Ribak, Steven G. Lipson

Proceedings Volume 2201, Adaptive Optics in Astronomy; (1994) https://doi.org/10.1117/12.176050
Event: 1994 Symposium on Astronomical Telescopes and Instrumentation for the 21st Century, 1994, Kailua, Kona, HI, United States

Abstract

We identify stellar wave fronts that passed through turbulence as fractals from the Fractional Brownian motion family. Fractal behavior manifests itself both in space and in time. We propose predicting wave fronts, based on earlier measurements at each pixel and at neighboring pixels. If the wind direction is known, mainly upward measurements are needed. The accuracy of the method is improved if atmospheric layers can be measured separately.

Citation Download Citation

C. Schwartz, Gideon Baum, Erez N. Ribak, and Steven G. Lipson "Fractal nature of atmospherically degraded wavefronts: an aid to prediction", Proc. SPIE 2201, Adaptive Optics in Astronomy, (31 May 1994); https://doi.org/10.1117/12.176050

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