Path: SC/Control
% An attitude and orbit simulation with reaction wheels. This simulation includes reaction wheels with Coulomb friction and damping. It is easy to specify the damping terms for each wheel. The demo also includes the PID3Axis controller. The core dynamics is for a gyrostat orbiting around a point mass. The simulation uses the vector pointing mode of PID3Axis to point a vector in the spacecraft frame either at nadir or at the sun. Control logic is included to point at nadir when the spacecraft is over the continental United States and at the sun otherwise. ------------------------------------------------------------------------ See also RHSRWAOrbit, PID3Axis, Plot2D, RK4 ------------------------------------------------------------------------ %
Orbit: OrbitCoord/OverArea Orbit: OrbitCoord/RAzToLatLon SC: Control/PID3Axis SC: Dynamics/RHSRWAOrbit SC: Ephem/EarthRot SC: Ephem/SunV1 SC: Visualization/LoadEarthMap Common: Control/PIDMIMO Common: GUIs/Figui Common: Graphics/AddFillToPlots Common: Graphics/AnimateVectors Common: Graphics/Plot2D Common: Graphics/TimeLabl Common: Quaternion/QTForm Common: Time/Date2JD Common: Time/JD2T Math: Integration/RK4 Math: Linear/Unit
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