Path: SC/Attitude
% Compute the pulse pair delay for a Spin Precession Maneuver. Computes the delay from the sun sensor pulse given the spin-axis, sensor boresight and the thruster torque axis. The delay is measured from the time the sensor sees the sun to the time the thruster must fire. -------------------------------------------------------------------------- Form: [delay, w] = PPDelay( azimuth, pulsewidth, t, h, s, spinRate, tauRise, tauFall ) -------------------------------------------------------------------------- ------ Inputs ------ azimuth (1,1) Azimuth of maneuver pulsewidth (1,1) Pulsewidth (sec) t (3,1) Torque vector h (3,1) Momentum vector s (3,1) Sensor pulse axis spinRate (1,1) Spin rate (rad/sec) tauRise (1,1) Rise time constant tauFall (1,1) Fall time constant ------- Outputs ------- delay (1,1) Delay (sec) w (1,1) Angular rate vector (rad/sec) --------------------------------------------------------------------------
SC: Attitude/PCentr Math: Linear/Cross
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