Study of a laser gyroscope using the Allan variation method

Authors: Bolotnov A.S., Fomin I.I.
Published in issue: #5(58)/2021
DOI: 10.18698/2541-8009-2021-5-702
Category: Instrument Engineering, Metrology, Information-Measuring Instruments and Systems | Chapter: Laser and opto-electronic systems
Keywords: navigation systems, gyroscope, Allan variation, dispersion, least squares method, ring laser, mobile complexes, aircraft
Published: 17.06.2021

The paper describes the advantages of using the Allan variation method in studying the noise components of the laser gyroscopes output signals in strapdown inertial navigation systems. The graphs are presented for the accuracy characteristics of the GL-2D ring laser gyroscope using the RWCalk program. The results are presented of calculating the noise components values of the ring laser gyroscope output signal using the Allan variation algorithm. The sources of noise components arising during measurements of the angular velocity using a photodetector mounted on the body of the laser gyroscope are determined. The accuracy class of the strapdown navigation system, into which this gyroscope will be installed, has been determined.

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