Disturbance torque compensated three axis yaw control system

Details Disturbance torque compensated three axis yaw control system Disturbance torque compensated three axis yaw control system

1992-07-20

1994-05-03

Bucci, David A.

Aeronautics and astronautics

Spacecraft

Attitude control

244171, 364434, B64G 128

Patent

active

053080246

ABSTRACT:
A satellite attitude control system is usable in the absence of any inertial yaw attitude reference, such as a gyroscope, and in the absence of a pitch bias momentum. Both the roll-yaw rigid body dynamics and the roll-yaw orbit kinematics are modelled. Pitch and roll attitude control are conventional. The model receives inputs from a roll sensor, and roll and yaw torques from reaction wheel monitors. The model produces estimated yaw which controls the spacecraft yaw attitude. The model further produces estimates of the constant component of the disturbance torques for compensation thereof.

REFERENCES:
patent: 4521855 (1985-06-01), Lehner et al.
patent: 5205518 (1993-04-01), Stetson, Jr.
patent: 5211360 (1993-05-01), Zimbelman

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