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SUPPORT SITE |
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SUPPORT SITE |
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Path: SC/MagneticControl
% Dipole vector needed to produce a torque given the magnetic field over time. This minimizes the weighted sum of the following cost functional: J = (t + Cross(b,m))'(t + Cross(b,m))' + m'm where t is constant over the period of time for which b is entered. If b is not entered it computes the magnetic field for an orbit whose radius is 7000 km and inclination is 28.4 deg. The default t is [1e-5;-1e-5;2.e-5]. The demo is run by typing: MagControlThreeAxis The dipole results are in ATM^2. If there are no outputs the function will make plots of the user inputs. -------------------------------------------------------------------------- Form: [m, lambda, e] = MagControlThreeAxis( t, b, time ) -------------------------------------------------------------------------- ------ Inputs ------ t (3,1) Torque b (3,:) Magnetic field vector in the torque frame time (1,:) Time vector corresponding to b ------- Outputs ------- m (3,:) Magnetic dipole vector needed lambda (3,1) Costates e (3,1) Torque error --------------------------------------------------------------------------
AerospaceUtils: Coord/QLVLH Common: Graphics/Plot2D Common: Quaternion/QForm Common: Time/JD2000 Math: Linear/Cross Math: Linear/SkewSq SC: BasicOrbit/RVFromKepler SC: Environs/BDipole SC: Visualization/PltOrbit
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