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TiltAngCovScale
[thetaCovX,thetaCovY,tvar] = TiltAngCovScale(lambda,D,G,...
Atm,[DispCov])Computes the covariance scale lengths for modeling Kolmogorov angular tilt anisoplanatism as a Markov random process in 2 dimensions. Returns angular scale lengths and tilt variance quantities for modeling tilt angular covariance as: $C_{X}(a,0) = tvar*exp(-a/thetaCovX)$ and $C_{Y}(a,0) = tvar*exp(-a/thetaCovY)$
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Parameters |
Description |
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lambda [scalar] |
Wavelength for propagation (m) |
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D [scalar] |
Diameter of recieve/transmit aperture (m) |
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G [struct] |
Geometry structure from GeomStruct |
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Atm [struct] |
Atmospheric modeling structure from AtmStruct |
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DispCov [scalar] |
(Optional) Flag (1/0) for covariance and fit plot |
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Return Values |
Description |
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thetaCovX [scalar] |
Covariance scale for X-tilt with X ang offset (rad) |
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thetaCovY [scalar] |
Covariance scale for Y-tilt with X ang offset (rad) |
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tvar [scalar] |
Variance of tilt fluctuations (rad^2) |
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Copyright (c) 2009. All rights reserved.
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Description