Detecting stationarity duration in the atmosphere

Nuno Morujão; Carlos M. Correia; Paulo Garcia

doi:10.1117/12.3020316

27 August 2024 Detecting stationarity duration in the atmosphere

Nuno Morujão, Carlos M. Correia, Paulo Garcia

Proceedings Volume 13097, Adaptive Optics Systems IX; 130972V (2024) https://doi.org/10.1117/12.3020316
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Abstract

Estimating turbulence parameters is essential during commissioning and optimising adaptive optics or fringe tracking systems. It also gained new relevance with free-space optical communication applications. The estimation of such parameters is done under the assumption of stationarity. Yet, the stationarity time scale of the atmospheric turbulence is unknown. The breakdown of this assumption leads to incorrect estimates and added error terms. In this paper, we illustrate stationarity detection with unit root testing and the pitfalls of its application to turbulence parameter time series.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Nuno Morujão, Carlos M. Correia, and Paulo Garcia "Detecting stationarity duration in the atmosphere", Proc. SPIE 13097, Adaptive Optics Systems IX, 130972V (27 August 2024); https://doi.org/10.1117/12.3020316

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