Share Email Print
cover

Proceedings Paper

Laser Gyro Dither Random Noise
Author(s): Joseph E. Killpatrick
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper 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.

Paper Details

Date Published: 4 October 1984
PDF: 9 pages
Proc. SPIE 0487, Physics of Optical Ring Gyros, (4 October 1984); doi: 10.1117/12.943252
Show Author Affiliations
Joseph E. Killpatrick, Honeywell Inc. (United States)


Published in SPIE Proceedings Vol. 0487:
Physics of Optical Ring Gyros
Stephen F. Jacobs; Joseph E. Killpatrick; Virgil E. Sanders; Murray Sargent; Marlan O. Scully; James H. Simpson, Editor(s)

© SPIE. Terms of Use
Back to Top