Path: SpacecraftEstimation/OpticalNavigation
% Computes optical measurements for planets and stars.
Inputs are planets and stars. Measurements are planet chords,
angles between planets and star/planet angles.
Noise may be added. Position noise is added to all 3 axes.
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Form:
y = OpticalNavPlanetStar( x, g, noise )
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Inputs
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x (:,1) ECI position of sensor [r;...]
g (1,1) Data structure
.uS (3,:) Star unit vectors in ECI
.nS (1,:) Number of stars per planet
.kP (1,:) Planet to use
.planet (1,1) Planet data structure
.jD (1,1) Julian date
.mode (1,:) 'polar star' or 'two planet'
noise (1,1) Data structure
.planetPosition (1,9) Position error (m)
.planetRadius (1,9) Radius Error
.angle (1,1) Angle error (rad)
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Outputs
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y (:,1) Measurement [chords;planet/planet;planet/star]
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Math: Linear/Mag Math: Linear/Unit
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