Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Aeronautical vehicle
Reexamination Certificate
2006-01-23
2010-06-01
Tran, Khoi (Department: 3664)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
Aeronautical vehicle
C701S001000, C701S003000, C701S005000, C701S008000, C701S009000, C701S010000, C701S014000
Reexamination Certificate
active
07729816
ABSTRACT:
A system includes an angular rate sensor disposed in a vehicle for providing angular rates of the vehicle, and an instrument disposed in the vehicle for providing line-of-sight control with respect to a line-of-sight reference. The instrument includes an integrator which is configured to integrate the angular rates of the vehicle to form non-compensated attitudes. Also included is a compensator coupled across the integrator, in a feed-forward loop, for receiving the angular rates of the vehicle and outputting compensated angular rates of the vehicle. A summer combines the non-compensated attitudes and the compensated angular rates of the to vehicle to form estimated vehicle attitudes for controlling the instrument with respect to the line-of-sight reference. The compensator is configured to provide error compensation to the instrument free-of any feedback loop that uses an error signal. The compensator may include a transfer function providing a fixed gain to the received angular rates of the vehicle. The compensator may, alternatively, include a is transfer function providing a variable gain as a function of frequency to operate on the received angular rates of the vehicle.
REFERENCES:
patent: 3984068 (1976-10-01), McPhee
patent: 4831318 (1989-05-01), Yuasa et al.
patent: 5557285 (1996-09-01), Bender et al.
patent: 5949675 (1999-09-01), Holmes et al.
patent: 2002/0027878 (2002-03-01), McDermott et al.
Amin Bhavesh V
ITT Manufacturing Enterprises Inc.
Ratnerprestia
Tran Khoi
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