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TiltCovariancePathWeight
MATLAB
W = TiltCovariancePathWeight(x,sigma,C1,C2)
Description

Computes weighting of Cn2 (turbulence strength) over propagation path for Zernike-tilt covariance for the specified positions x normalized to the path length (0-1), and the accompanying aperture diameter normalized beam separation vector sigma. Path weighting is computed for covariance of C1 component with C2 component.

Parameters
Parameters 
Description 
x [vector] 
Path position normalized to path length 
sigma [vector] 
Separation of beam paths at each normalized point x along propagation path, normalized to the Tx/Rx aperture diameter 
C1 [string] 
Designation of tilt component 1 ('P' or 'T') 
C2 [string] 
Designation of tilt component 2 ('P' or 'T') 
Return Values
Return Values 
Description 
W [vector] 
Path weighting evaluated at normalized positions x. 
Examples

>> x = (0.05:0.1:0.95)'; 

>> s = [linspace(0,1,length(x))' linspace(-0.5,0,length(x))']; 

>> W = TiltCovariancePathWeight(x,s./1.0,'P','P') 

  • Path weighting of P tilt for separation vector s, given a Tx/Rx aperture diameter of 1 m. Matrix s can be computed using PathDisp, x is normalized screen positions, i.e., Atm.z./Atm.L.
 

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