Extended Environmental Performance of Attitude and Heading Reference Grade Fiber Optic Rotation Sensors

Published in: SPIE Proceedings , v. 1367, Fiber Optic and Laser Sensors VIII, Feb. 1, 1991, p. 107-120

by Gene H. Chin, Amado Cordova, Eric L. Goldner

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Bias stability of less than 0.75 deg/hr, random walk of 0.012 deg/hr, scale factor linearity better than 45 ppm and scale factor residual over temperature (after linear fit) better than 45 ppm have been demonstrated with a medium accuracy fiber optic gyro. Based on this performance, low production cost FOG-based IMUs with bias stability of less than 1.0 deg/hr over full military environment are practical for near-future military applications. Furthermore, a model of bias errors in reasonable agreement with experiment has been developed.

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