Method of minimizing, damping or compensating disturbances to a

Details Method of minimizing, damping or compensating disturbances to a Method of minimizing, damping or compensating disturbances to a

1994-12-23

1996-12-10

Barefoot, Galen L.

Aeronautics and astronautics

Spacecraft

Attitude control

B64G 138

Patent

active

055823696

ABSTRACT:
For using, on a spin-stabilized satellite, an actuator having an active axis substantially parallel to the spin axis wherein the actuator is activated in a predetermined mode and the resulting nutation period is measured. The actuator is activated in this predetermined mode for at least part of a preliminary step whose duration is equal to a predetermined fraction of the nutation period. This brings the satellite into a configuration in which triggering the service mode of operation induces minimal nutation. The actuator is then activated in this service mode of operation for any predetermined duration. The actuator is then activated under conditions which are the reverse of those of the preliminary step.

REFERENCES:
patent: 4023752 (1977-05-01), Pistiner et al.
patent: 4424948 (1984-01-01), Muhlfelder et al.
patent: 4504032 (1985-03-01), Phillips et al.
patent: 4958788 (1990-09-01), Namera et al.
patent: 5042752 (1991-08-01), Surauer et al.

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