Compensation of scale factor nonlinearity in resonator fiber optic gyro

Yinzhou Zhi; Lishuang Feng; Junjie Wang; Yichuang Tang

doi:10.1117/1.OE.53.12.127108

23 December 2014 Compensation of scale factor nonlinearity in resonator fiber optic gyro

Yinzhou Zhi, Lishuang Feng, Junjie Wang, Yichuang Tang

Author Affiliations +

Optical Engineering, Vol. 53, Issue 12, 127108 (December 2014). https://doi.org/10.1117/1.OE.53.12.127108

Abstract

Scale factor nonlinearity (SFN) and dynamic range (DR) are the two significant parameters used to evaluate the performance of a resonator fiber optic gyro (RFOG). The inherent SFN of an open-loop RFOG with triangular phase modulation is first analyzed theoretically, and its relationship with the DR is simulated, showing that the DR is significantly constrained by the SFN. For our system, when the SFN is 1%, the DR is less than ±82 deg/s. To decrease the SFN in a certain DR, a real-time compensation method based on a field-programmable gate array is proposed. The compensation model is set up and the compensation scheme is illustrated. With the proposed method, the SFN of the RFOG is decreased from 1.53% to 0.057% with a DR of ±100 deg/s.

Citation Download Citation

Yinzhou Zhi, Lishuang Feng, Junjie Wang, and Yichuang Tang "Compensation of scale factor nonlinearity in resonator fiber optic gyro," Optical Engineering 53(12), 127108 (23 December 2014). https://doi.org/10.1117/1.OE.53.12.127108

Published: 23 December 2014

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available