Aeronautics and astronautics – Spacecraft – Attitude control
Patent
1990-09-07
1992-03-31
Barefoot, Galen
Aeronautics and astronautics
Spacecraft
Attitude control
342355, 364459, B64G 128
Patent
active
051000849
ABSTRACT:
The present invention is a method and apparatus to control a pointing trajectory of an aim point with respect to one or more targets for a momentum bias spacecraft in an orbit inclined relative to an equatorial geosynchronous orbit wherein the spacecraft is provided with an onboard computer capable of using orbit information available to the spacecraft and spacecraft hardware to move the aim point according to a predetermined tracking model which may be either time-varying or invariant. The tracking model allows the controller to remove short-term nutational and long-term orbit rate dynamical disturbances, beyond simple-order sinusoidal functions having a single frequency.
REFERENCES:
patent: 3088697 (1963-05-01), Cutler
patent: 3171612 (1965-03-01), Hildebrant
patent: 3747095 (1973-07-01), Wilson
patent: 4084722 (1978-04-01), Muhlfelder
patent: 4106094 (1978-08-01), Land
patent: 4188666 (1980-02-01), Legrand et al.
patent: 4294420 (1981-10-01), Broquet
patent: 4521855 (1985-06-01), Lehner et al.
patent: 4630058 (1986-12-01), Brown
patent: 4757964 (1988-07-01), McIntyre
patent: 4776540 (1988-10-01), Westerlund
patent: 4911385 (1990-03-01), Agrawal et al.
Terasaki, R. M., "Dual Reaction Wheel Control of Spacecraft Pointing," Symposium on Attitude Stabilization and Control of Dual Spin Spacecraft, El Segundo, Calif., pp. 185-196 (Aug. 1967).
Dahl, P. R., "A Twin Wheel Momentum Bias/Reaction Jet Spacecraft Control System," AIAA Paper No. 71-951, AIAA Guidance, Control and Flight Mechanics Conference, Hofstra University, Hempstead, New York, (Aug. 1971).
Lebsock, K. L., "Magnetic Desaturation of a Momentum Bias System," AIAA Journal of Guidance and Control, 6 (No. 6), pp. 477-483, 1983.
Dougherty, H. J., et al., "Analysis and Design of WHECON--An Attitude Control Concept," AIAA paper 68-461, AIAA 2n Communications Satellite Systems Conference, pp. 1-10, (Apr. 1968).
Wie, B., et al., "Roll/Yaw Control of a Flexible Spacecraft Using Skewed Bias Momentum Wheels," 8 (No. 4), pp. 447-453, (Jul.-Aug. 1985).
Hepden, C. R., "An on-board digital processor for three axis attitude control," Journal of the British Interplanetary Society, vol. 27, No. 8, pp. 580-589, Aug. 1974.
Gamble Donald W.
Lehner John A.
Rahn Christopher D.
Barefoot Galen
Space Systems Loral, Inc.
LandOfFree
Method and apparatus for inclined orbit attitude control for mom does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for inclined orbit attitude control for mom, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for inclined orbit attitude control for mom will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2253620