GYRO WANDER CORRECTION BY PERIODIC REVERSALS OF GYRO SPIN, PART I

Norman E. French

Peer Reviewed

Abstract: In inertial platform is described in which three gyroscopes of the two-degree-of-freedom type are disposed in a coplanar configuration with their spin axes at 120 degrees on to another. Cycles of operation are described in which two or all three of the gyroscopes undergo periodic reversals of the direction of rotor spin. The periodic spin reversals are intended to provide a correction for the greater part of the gyro wander, by reversing the precessions caused by extraneous torques. An intrinsic cancellation of the wander results directly from the spin reversals. An alternative method is descibed in which the signals fed to the gyro torquing motors are compared during successive modes of the operating cycle. This permits the computation of estimates of the gyro wander rates, so that correcting signals may be applied.
Published in: NAVIGATION, Journal of the Institute of Navigation, Volume 15, Number 1
Pages: 69 - 77
Cite this article: French, Norman E., "GYRO WANDER CORRECTION BY PERIODIC REVERSALS OF GYRO SPIN, PART I", NAVIGATION, Journal of The Institute of Navigation, Vol. 15, No. 1, Spring 1968, pp. 69-77.
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