Path: FormationFlying/Dynamics
% Convert short arc measurements to an approximate Hill's state.
Calls fminsearch on PinholeCamera to find an approximate Hills state.
Type ShortArcToHills for a demo. The demo calls PinholeCamera to
compute pixel locations.
Since version 11.
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Form:
x = ShortArcToHills( p, t, n, qHToBody, e )
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Inputs
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p (2,n) Pixel locations - at least 3
t (1,n) Times (sec)
n (1,1) Orbit rate of observing spacecraft (rad/s)
qHToBody (4,1) Quaternion from Hills to Body
e (1,1) Camera data structure
.f (1,1) Focal length (mm)
.w (1,1) Pixel width (micro-m)
.bodyToCamera (3,3) Transformation from body to camera
xECI (6,1) ECI state of imager
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Outputs
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x (6,1) Initial Hills state [r;v]
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AC: ACData/ACTConstants FormationFlying: Coord/GetHillsMats FormationFlying: Dynamics/HillsEqns FormationFlying: Transformation/Hills2ECI SC: BasicOrbit/CP2I SC: BasicOrbit/E2M SC: BasicOrbit/E2Nu SC: BasicOrbit/El2RV SC: BasicOrbit/M2E SC: BasicOrbit/M2EApp SC: BasicOrbit/M2EEl SC: BasicOrbit/M2EHy SC: BasicOrbit/M2Nu SC: BasicOrbit/M2NuPb SC: BasicOrbit/Nu2E SC: BasicOrbit/Nu2M SC: BasicOrbit/RV2El SC: SCData/sCTConstants Common: CommonData/Constants Common: CommonData/SwooshWatermark Common: CommonData/xSplashSmall Common: Database/Constant Common: General/CellToMat Common: General/DeleteCell Common: General/DispWithTitle Common: General/MatToCell Common: General/Watermark Common: Graphics/NewFig Common: Graphics/Plot2D Common: Graphics/PltStyle Common: Quaternion/AU2Q Common: Quaternion/QForm Imaging: Optics/PinholeCamera Math: Linear/Cross Math: Linear/Dot Math: Linear/DupVect Math: Linear/Mag Math: Linear/Unit
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