Experimental confirmation of long-memory correlations in star-wander data
Abstract
In this letter we have analyzed the temporal correlations of the angle-of-arrival fluctuations of stellar images. Experimentally measured data were carefully examined by implementing multifractal detrended fluctuation analysis. This algorithm is able to discriminate the presence of fractal and multifractal structures in recorded time sequences. We have confirmed that turbulence-degraded stellar wavefronts are compatible with a long-memory correlated monofractal process. This experimental result is quite significant for the accurate comprehension and modeling of the atmospheric turbulence effects on the stellar images. It can also be of great utility within the adaptive optics field.
Cite
@article{arxiv.1406.7706,
title = {Experimental confirmation of long-memory correlations in star-wander data},
author = {Luciano Zunino and Damián Gulich and Gustavo Funes and Aziz Ziad},
journal= {arXiv preprint arXiv:1406.7706},
year = {2023}
}
Comments
4 pages, 5 figures, 23 references. Minor grammatical changes to match the published version. Comments and suggestions are welcomed