Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Aeronautical vehicle
Patent
1996-11-22
1999-08-10
Louis-Jacques, Jacques H.
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
Aeronautical vehicle
701 13, 701226, 244164, 244165, B64G 128
Patent
active
059351764
ABSTRACT:
Momentum wheel speed correction in an orbital space vehicle that corrects for the oscillation resulting from spurious variations in the angular velocity of the momentum wheel. The momentum wheel's angular velocity is subject to random fluctuations due to Coulomb forces. These fluctuations are coupled into the vehicle's spin rate causing errors in the yaw rate and yaw. By adding corrective values to the determined yaw rate and yaw by selectively filtering the momentum wheel tachometer signals, pointing errors are substantially reduced or even eliminated.
REFERENCES:
patent: 3866025 (1975-02-01), Cavanagh
patent: 3925643 (1975-12-01), Roantree et al.
patent: 3937423 (1976-02-01), Johansen
patent: 4084772 (1978-04-01), Muhlfelder
patent: 4092716 (1978-05-01), Berg et al.
patent: 4230294 (1980-10-01), Pistiner
patent: 4294420 (1981-10-01), Broquet
patent: 4521855 (1985-06-01), Lehner et al.
patent: 4567564 (1986-01-01), Bittner et al.
patent: 4786018 (1988-11-01), Cope
patent: 4911385 (1990-03-01), Agrawal et al.
patent: 4931942 (1990-06-01), Carg et al.
patent: 5020745 (1991-06-01), Stetson, Jr.
patent: 5058835 (1991-10-01), Goodzeit et al.
patent: 5184790 (1993-02-01), Fowell
patent: 5248118 (1993-09-01), Cohen et al.
patent: 5259577 (1993-11-01), Achkar et al.
patent: 5269483 (1993-12-01), Flament
patent: 5308024 (1994-05-01), Stetson, Jr.
patent: 5343398 (1994-08-01), Goodzeit et al.
patent: 5540405 (1996-07-01), Bender et al.
patent: 5608634 (1997-03-01), Goodzeit et al.
patent: 5610820 (1997-03-01), Shankar et al.
Lockheed Martin Corporation
Louis-Jacques Jacques H.
Wright Carl M.
LandOfFree
Momentum wheel oscillation filter does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Momentum wheel oscillation filter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Momentum wheel oscillation filter will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1114879