Real-time turbulence profiling using particle filtering

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http://hdl.handle.net/10138/311028

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Lehtonen , J & Helin , T 2019 , Real-time turbulence profiling using particle filtering . in AO4ELT6 Conference Proceedings . Adaptive Optics for Extremely Large Telescopes , Québec City , Canada , 09/06/2019 . < http://ao4elt6.copl.ulaval.ca/proceedings/401-rTKq-251.pdf >

Title: Real-time turbulence profiling using particle filtering
Author: Lehtonen, Jonatan; Helin, Tapio
Other contributor: University of Helsinki, Department of Mathematics and Statistics
University of Helsinki, LUT University

Date: 2019
Language: eng
Belongs to series: AO4ELT6 Conference Proceedings
URI: http://hdl.handle.net/10138/311028
Abstract: A number of experiments have demonstrated that turbulence profiles can change very rapidly. However, turbulence profiling techniques typically rely on estimating correlations from up to a few minutes of data, delivering accurate profiles at the cost of a time delay. We present a novel method for tracking the turbulence profile in real time using AO telemetry. This method can provide complementary information without requiring any additional instruments, and may provide new insights into turbulence dynamics.
Subject: 111 Mathematics
Inverse problems
Data assimilation
Particle filtering
115 Astronomy, Space science
Adaptive optics
Turbulence profiling
Real-time profiling
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