Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Instantaneous phase method for readout signal processing of body dithered ring laser gyro

Not Accessible

Your library or personal account may give you access

Abstract

The readout signal of a body dithered ring laser gyro contains both useful information and the dither component. The dither component must be removed to get the useful information. The dither stripping method can get the useful information without latency. But the quadrature demodulator only has 1/4 pulse resolution, which means that the quantization noise will limit the short-term accuracy. The effect and the property of quantization noise are analyzed in detail. Taking advantage of high-speed analog-to-digital conversion (ADC), the analog values of the two beat frequency signals in quadrature are sampled. A novel instantaneous phase method is introduced, which can get the residual phase besides 4× resolution and the quantization noise can be removed radically. The Allan variance analysis of experimental results shows that the quantization noise coefficient using this method is only 1/7 of that using the original 4× resolution method.

© 2011 Optical Society of America

Full Article  |  PDF Article
More Like This
Zero lock-in implementation by phase wrapping/unwrapping in a ring laser gyroscope

Jae-Cheul Lee, Hyun-Ju Cho, and Ho-Soon Yang
Appl. Opt. 60(34) 10529-10538 (2021)

Modified adaptive filter for digital subdivision of a four-frequency differential laser gyro

Weibin Zhu, Gang Zheng, Linfeng Chen, Ke Liang, Yao Huang, and Zi Xue
Appl. Opt. 60(2) 342-350 (2021)

Temperature compensation method using readout signals of ring laser gyroscope

Geng Li, Fei Wang, Guangzong Xiao, Guo Wei, Pengfei Zhang, and Xingwu Long
Opt. Express 23(10) 13320-13332 (2015)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (7)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (1)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (15)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved