Low cost self aligning strapdown attitude and heading...

Details Low cost self aligning strapdown attitude and heading... Low cost self aligning strapdown attitude and heading...

G - Physics

01

C

79/2

G01C 19/00 (2006.01) G01C 19/34 (2006.01) G01C 21/16 (2006.01)

Patent

CA 1131053

GCD 76-19 LOW COST SELF ALIGNING STRAPDOWN ATTITUDE AND HEADING REFERENCE SYSTEM ABSTRACT OF THE DISCLOSURE Apparatus including two two-degree-of-freedom gyroscopes and at least two accelerometers mounted on a turn- table on a vehicle. The turntable can be positioned about a vehicle vertical axis in one or the other of two positions 180 degrees apart for alignment. After alignment, the turntable is caged into its zero degree position, and the instruments thereafter operate in a strap-down mode with the yaw, roll and pitch angles of the vehicle computed by computer mechanisms which are sensitive to signals from the gyroscopes and accelerometers.

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