Aeronautics and astronautics – Spacecraft – Attitude control
Reexamination Certificate
2009-09-14
2010-11-16
Lee, Benjamin P (Department: 3641)
Aeronautics and astronautics
Spacecraft
Attitude control
C244S158400, C701S226000, C455S013200
Reexamination Certificate
active
07832688
ABSTRACT:
A spacecraft may include a receive antenna, a transmit antenna having an antenna attitude adjuster, and a spacecraft attitude adjustor. The spacecraft may have a nominal orientation in which a yaw axis of the spacecraft, a roll axis of the spacecraft, and the radiator panels are substantially parallel to Earth's equatorial plane, in which the pitch axis of the spacecraft is substantially parallel to Earth's polar axis, in which the Nadir vector is in a yaw-pitch plane of the spacecraft, and in which the transmit antenna and receive antenna are oriented at angle φnom. The antenna attitude adjustor and the spacecraft attitude adjustor may correct an attitude of the transmit antenna to maintain a desired degree of the receive antenna and the transmit antenna steered toward a coverage region on Earth's surface.
REFERENCES:
patent: 6017003 (2000-01-01), Mullins
patent: 6223019 (2001-04-01), Briskman et al.
patent: 6283415 (2001-09-01), Rosen
patent: 6318676 (2001-11-01), Turner et al.
patent: 6325332 (2001-12-01), Cellier et al.
patent: 6564053 (2003-05-01), Briskman et al.
patent: 6616104 (2003-09-01), Cheng et al.
patent: 6695259 (2004-02-01), Maeda
patent: 6851651 (2005-02-01), Goodzeit
patent: 7277673 (2007-10-01), Castiel
patent: 7357356 (2008-04-01), Goodzeit et al.
patent: 7369809 (2008-05-01), Wang
patent: 2002/0136191 (2002-09-01), Draim et al.
patent: 2003/0034422 (2003-02-01), Higgins
patent: 2003/0155468 (2003-08-01), Goodzeit
patent: 2003/0189136 (2003-10-01), Maeda et al.
patent: 2003/0228867 (2003-12-01), Castiel
patent: 2005/0098686 (2005-05-01), Goodzeit
patent: 2007/0032191 (2007-02-01), Marko
patent: 1 116 657 (2001-07-01), None
patent: WO 03/061141 (2003-07-01), None
Yoshio Karasawa, et al., “Analysis Of Availability in LMSS By Means Of Satellite Diversity Based On Three-State Propagation Channel Model”, IEEE Transactions On Vehicular Technology, vol. 46, No. 4, Nov. 1997.
“S-Dars Broadcast From Inclined, Elliptical Orbits”, by Robert D. Briskman, et al., 52nd International Astronautical Congress, Oct. 1-5, 2001, Toulouse, France.
Lee Benjamin P
Lockheed Martin Corporation
McDermott Will & Emery LLP
LandOfFree
Optimized land mobile satellite configuration and steering does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Optimized land mobile satellite configuration and steering, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optimized land mobile satellite configuration and steering will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4192580