Path: SC/Actuator
% Simulates a pivot rotation. The pivot is rotated in two steps. The steps are timed to be exactly one half nutation period apart. The results is that the spacecraft rolls and there is no nutation. The pivot stepping motor is modeled by a high bandwidth PD controller. The gains are selected by the fields: d.pivotAngleGain d.pivotRateGain The selected gains are the highest feasible with an integration time step of 0.0625 seconds. The pivot is assumed to update every pivotUpdatePeriod. ------------------------------------------------------------------------ See also QTForm, Plot2D, TimeGUI, Jacobian, Mag, RK4, SCWithRollPivot ------------------------------------------------------------------------ % ------------------------------------------------------------------------------- Copyright (c) 1999 Princeton Satellite Systems, Inc. All rights reserved. -------------------------------------------------------------------------------