Path: SpacecraftEstimation/SensorMeas
% Nadir/star measurement for use with UKF.
If d.angleNoise is entered it will add Gaussian noise to the angle
measurement.
Since version 2014.1
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Form:
y = MeasNadirStar( x, d )
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Inputs
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x (6,1) ECI state [r;v]
d (1,1) Filter data structure
.uStar (3,n) ECI star vector
.angleNoise (1,1) 1 sigma angle noise
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Outputs
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y (n,1) Star angle (rad)
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Math: Linear/Dot Math: Linear/Unit
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