Method for controlling the attitude of a three-axis stabilized,

Details Method for controlling the attitude of a three-axis stabilized, Method for controlling the attitude of a three-axis stabilized,

1997-06-17

1999-12-07

Barefoot, Galen L.

Aeronautics and astronautics

Spacecraft

Attitude control

701 13, B64G 128

Patent

active

059969415

ABSTRACT:
An attitude controller for a 3-axis stabilized, Earth oriented bias momentum spacecraft is described, where only 2-axis attitude measurements from the Earth sensor are available. In contrast to the classical spacecrafts that are controlled w.r.t. a fixed orbital Earth pointing reference frame, (possibly large angle) time varying reference signals are considered here, i.e. the control task consists of a tracking problem. The controller design consists of a decoupling controller and axis-related PID controllers based on yaw observer estimates.

REFERENCES:
patent: 5058835 (1991-10-01), Goodzeit et al.
patent: 5308024 (1994-05-01), Stetson, Jr.
patent: 5452869 (1995-09-01), Basuthakur et al.
patent: 5608634 (1997-03-01), Goodzeit et al.
patent: 5613820 (1997-03-01), Shankar et al.

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