Boots – shoes – and leggings
Patent
1989-02-13
1991-10-22
Lall, Parshotam S.
Boots, shoes, and leggings
33318, 364579, G06F 1550
Patent
active
050601750
ABSTRACT:
A sensor may be scanned relative to any arbitrarily selected reference coordinate system by the use of a system including an attitude determination unit, attitude control unit, inertial measurement unit, navigation unit, and a scan generation unit. Methods are also employed, in this system, for reducing errors and increasing the accuracy of the scan of the sensor. These methods include the use of gyroscopes having no cross axis coupling or inherent limit on their angular speed, a Kalman filter to reduce system errors, continually estimating solutions to the strapdown equation, and a dual loop control system utilizing both rate and position signals which issues motion control commands to the sensor.
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Craft, Jr. Paul E.
Cubalchini Ronald
McArthur William G.
Rue Arthur K.
Denson-Low Wanda K.
Hughes Aircraft Company
Lall Parshotam S.
Streeter William J.
Zanelli Michael
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