Modelling and prediction of non-stationary optical turbulence behaviour
conference paper
There is a strong need to model the temporal fluctuations in turbulence parameters, for instance for scheduling, simulation and prediction purposes. This paper aims at modelling the dynamic behaviour of the turbulence coherence length r0, utilising measurement data from the Stereo-SCIDAR instrument installed at the Isaac Newton Telescope at La Palma. Based on an estimate of the power spectral density function, a low order stochastic model to capture the temporal variability of r0 is proposed. The impact of this type of stochastic model on the prediction of the coherence length behaviour is shown.
Topics
Atmospheric turbulenceCoherence lengthForecastingNon-stationary behaviourAdaptive opticsPower spectral densitySpectral densityStochastic systemsIsaac Newton telescopeModelling and predictionsNonstationaryOptical turbulenceTemporal fluctuationTemporal variabilityTurbulence parametersStochastic models
TNO Identifier
575365
ISSN
0277786X
ISBN
9781510601970
Publisher
SPIE
Article nr.
99091M
Source title
Adaptive Optics Systems V, 26 June - 1 July 2016, Edinburgh, Scotland, UK
Editor(s)
Marchetti, E.
Veran, J.P.
Close, L.M.
Veran, J.P.
Close, L.M.