The influence of noise on output of Ring Laser Gyroscope

Wang Kedong; Yan Lei; Gu Qitai

doi:10.1016/j.sna.2004.09.006

The influence of noise on output of Ring Laser Gyroscope

Wang Kedong^*
, Yan Lei
, Gu Qitai

^*Corresponding author for this work

Peking University
Tsinghua University

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

Although the effect of lock-in in Ring Laser Gyroscope (RLG) can be reduced sharply by introducing mechanical dither into the input of RLG, there is still much large RLG readout error, which is unacceptable for medium/high-precision inertial navigation, due to the appearance of dynamic lock-ins. Superimposing noise on periodic dither signal can reduce the influence of dynamic lock-ins further. The relationships of RLG output's deviation from mean and dispersion coefficient with noise intensity are analyzed with the inputs of both single noise and compound dither (periodic dither superimposed with noise), respectively. The results show that single noise is less practical than compound dither.

Original language	English
Pages (from-to)	75-83
Number of pages	9
Journal	Sensors and Actuators A: Physical
Volume	119
Issue number	1
DOIs	https://doi.org/10.1016/j.sna.2004.09.006
State	Published - 28 Mar 2005
Externally published	Yes

Keywords

Dither
Error compensation
Gyroscope
Ring Laser Gyroscope
Stochastic process

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10.1016/j.sna.2004.09.006

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title = "The influence of noise on output of Ring Laser Gyroscope",

abstract = "Although the effect of lock-in in Ring Laser Gyroscope (RLG) can be reduced sharply by introducing mechanical dither into the input of RLG, there is still much large RLG readout error, which is unacceptable for medium/high-precision inertial navigation, due to the appearance of dynamic lock-ins. Superimposing noise on periodic dither signal can reduce the influence of dynamic lock-ins further. The relationships of RLG output's deviation from mean and dispersion coefficient with noise intensity are analyzed with the inputs of both single noise and compound dither (periodic dither superimposed with noise), respectively. The results show that single noise is less practical than compound dither.",

keywords = "Dither, Error compensation, Gyroscope, Ring Laser Gyroscope, Stochastic process",

author = "Wang Kedong and Yan Lei and Gu Qitai",

year = "2005",

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T1 - The influence of noise on output of Ring Laser Gyroscope

AU - Kedong, Wang

AU - Lei, Yan

AU - Qitai, Gu

PY - 2005/3/28

Y1 - 2005/3/28

N2 - Although the effect of lock-in in Ring Laser Gyroscope (RLG) can be reduced sharply by introducing mechanical dither into the input of RLG, there is still much large RLG readout error, which is unacceptable for medium/high-precision inertial navigation, due to the appearance of dynamic lock-ins. Superimposing noise on periodic dither signal can reduce the influence of dynamic lock-ins further. The relationships of RLG output's deviation from mean and dispersion coefficient with noise intensity are analyzed with the inputs of both single noise and compound dither (periodic dither superimposed with noise), respectively. The results show that single noise is less practical than compound dither.

AB - Although the effect of lock-in in Ring Laser Gyroscope (RLG) can be reduced sharply by introducing mechanical dither into the input of RLG, there is still much large RLG readout error, which is unacceptable for medium/high-precision inertial navigation, due to the appearance of dynamic lock-ins. Superimposing noise on periodic dither signal can reduce the influence of dynamic lock-ins further. The relationships of RLG output's deviation from mean and dispersion coefficient with noise intensity are analyzed with the inputs of both single noise and compound dither (periodic dither superimposed with noise), respectively. The results show that single noise is less practical than compound dither.

KW - Dither

KW - Error compensation

KW - Gyroscope

KW - Ring Laser Gyroscope

KW - Stochastic process

UR - https://www.scopus.com/pages/publications/17144369906

U2 - 10.1016/j.sna.2004.09.006

DO - 10.1016/j.sna.2004.09.006

M3 - 文章

AN - SCOPUS:17144369906

SN - 0924-4247

VL - 119

SP - 75

EP - 83

JO - Sensors and Actuators A: Physical

JF - Sensors and Actuators A: Physical

IS - 1

ER -

The influence of noise on output of Ring Laser Gyroscope

Abstract

Keywords

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