Spacecraft flight control system design selection process for a geostationary communication satellite

Details Spacecraft flight control system design selection process for a geostationary communication satellite Spacecraft flight control system design selection process for a geostationary communication satellite

Sep 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992stin...9311002b&link_type=abstract

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Computer Science

Communication Satellites, Control Systems Design, Flight Control, Geosynchronous Orbits, Space Probes, Spacecraft Control, Spacecraft Stability, Spin Stabilization, Cassini Mission, Control Moment Gyroscopes, Gravity Gradient, Magnetic Control, Mars Observer, Nutation Dampers, Space Debris

Scientific paper

The Earth's first artificial satellite, Sputnik 1, slowly tumbled in orbit. The first U.S. satellite, Explorer 1, also tumbled out of control. Now, as we launch the Mars observer and the Cassini spacecraft, stability and control have become higher priorities. The flight control system design selection process is reviewed using as an example a geostationary communication satellite which is to have a life expectancy of 10 to 14 years. Disturbance torques including aerodynamic, magnetic, gravity gradient, solar, micrometeorite, debris, collision, and internal torques are assessed to quantify the disturbance environment so that the required compensating torque can be determined. Then control torque options, including passive versus active, momentum control, bias momentum, spin stabilization, dual spin, gravity gradient, magnetic, reaction wheels, control moment gyros, nutation dampers, inertia augmentation techniques, three-axis control, reactions control system (RCS), and RCS sizing, are considered. A flight control system design is then selected and preliminary stability criteria are met by the control gains selection.

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