Spacecraft thruster control via sigma-delta modulation
Zappulla, Richard II
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Spacecraft reaction control (RC) thrusters provide a means for attitude control as well as orbital maneuvering. When compared to other actuators, offering a nearly continuous range of control inputs across their operating envelope (e.g., reaction wheels, control moment gyroscopes), RC thrusters take on only two discrete states: on or off. To use the RC thrusters, the often continuous control signal has to be modulated.
The article of record as published may be found at http://dx.doi.org/10.2514/1.G002986
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