Laser Gyro Dither Random Noise

Joseph E. Killpatrick

doi:10.1117/12.943252

4 October 1984 Laser Gyro Dither Random Noise

Joseph E. Killpatrick

Proceedings Volume 0487, Physics of Optical Ring Gyros; (1984) https://doi.org/10.1117/12.943252
Event: Physics of Optical Ring Gyros, 1984, Snowbird, United States

Abstract

The error angle created when an alternating bias is used to bias the laser gyre is given for different operating conditions. These conditions are defined by the time required to reverse the biase angle by one count. 1. Slow dither--where the time for reversal is long (i.e., greater than a "characteristic time" of the inverse of the lock-in frequency). 2. Fast dither--where the frequency and reversal rates of the gyro bias are very high (i.e., the time for reversal of a count is less than the "characteristic time"). 3. Very fast dither--where the reversal of the bias rate is virtually instantaneous (less than the time for one count, i.e., 1/F output). This is referred to as square wave dither.

Citation Download Citation

Joseph E. Killpatrick "Laser Gyro Dither Random Noise", Proc. SPIE 0487, Physics of Optical Ring Gyros, (4 October 1984); https://doi.org/10.1117/12.943252

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