AnisoplanaticJitter

MATLAB

[sigmaP,sigmaT] = AnisoplanaticJitter(alpha,D,d,Atm)

Description

Computes anisoplanatic beam jitter components (in rad) given turbulence multiplier alpha, Tx/Rx aperture diameter D, anisoplanatic beam path displacement d, and atmospheric modeling data in Atm. Jitter is resolved in target P axis and T axis. Beam displacement vector should be obtained via PathDisp to include appropriate anisoplanatic effects (angular, aperture, chromatic, etc.)

Parameters

Parameters	Description
alpha [vector]	Turbulence strength multiplier
D [scalar]	Tx/Rx Aperture diameter (m)
d [matrix]	Displacement of beam along propagation path (m). Resolved for the P axis and T axis, as calculated from PathDisp. Column 1 is displacement in P axis, col 2 is displacement in T axis, i.e., d=[d_P,d_T]
Atm [struct]	Atmospheric modeling structure from AtmStruct

Return Values

Return Values	Description
sigmaP [vector]	Anisoplanatic jitter in P axis (rad)
sigmaT [vector]	Anisoplanatic jitter in T axis (rad)

Examples

>> G = GeomStruct;

>> Atm = AtmStruct;

>> d = PathDisp(G,Atm,'ANGULAR',1e-6,0);

>> [sigmaP,sigmaT] = AnisoplanaticJitter(1.0,1.0,d,Atm)

Anisoplanatic jitter components for turbulence multiplier of 1, 1 m Tx/Rx aperture, beam displacement s, and atmospheric model in Atm.