Detecting stationarity duration in the atmosphere

• Type: Article in International Conference Proceedings Book
• Date: 2024

Authors

Morujao, N (Author) Other; Correia, CM (Author) FEUP; P. J. V. Garcia (Author) FEUP

Conference proceedings International

Title: ADAPTIVE OPTICS SYSTEMS IX

Final page: 104

Conference on Adaptive Optics Systems IX

Yokohama, JAPAN, JUN 16-22, 2024

Indexing

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Other information

Authenticus ID: P-017-95K

DOI: 10.1117/12.3020316

Abstract (EN): 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 7