A temperature drift compensation method applied to fiber optic gyroscope north-seeking

Q3 Engineering

光电工程 Pub Date : 2020-11-20 DOI:10.12086/OEE.2020.190681

L. Jinhui, Zhou Yilan, Liu Cheng, Shu Xiaowu

引用次数: 1

Abstract

The startup error of fiber optic gyroscope (FOG) in north-seeking is the error caused by the zero-bias drift of FOG caused by drastic change of the temperature in the starting process. The start-up error significantly increases north-seeking error during the cold startup phase compared to the stable phase, which prolongs the effective north-seeking time. Through the analysis of the factors affecting the temperature drift of FOG, the mul-ti-parameter linear model was established by empirical mode decomposition (EMD), autoregressive-moving average (ARMA) modeling and Kalman filtering to realize a temperature drift compensation method applied to FOG north-seeking. The experimental results show that the method can reduce the north-seeking startup error by nearly 80%, so that the startup north-seeking precision is equivalent to the stable phase and the effective north-seeking time is shortened.

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一种用于光纤陀螺寻北的温度漂移补偿方法

光纤陀螺寻北启动误差是光纤陀螺在启动过程中由于温度的剧烈变化引起的零偏漂移所产生的误差。与稳定阶段相比，冷启动阶段的启动误差显著增加寻北误差，延长了有效寻北时间。通过分析影响光纤陀螺温度漂移的因素，通过经验模态分解(EMD)、自回归移动平均(ARMA)建模和卡尔曼滤波建立多参数线性模型，实现光纤陀螺寻北温度漂移补偿方法。实验结果表明，该方法可将寻北启动误差降低近80%，使启动寻北精度与稳定相位相当，缩短了有效寻北时间。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

光电工程 Engineering-Electrical and Electronic Engineering

CiteScore

2.00

自引率

0.00%

发文量

6622

期刊介绍： Founded in 1974, Opto-Electronic Engineering is an academic journal under the supervision of the Chinese Academy of Sciences and co-sponsored by the Institute of Optoelectronic Technology of the Chinese Academy of Sciences (IOTC) and the Optical Society of China (OSC). It is a core journal in Chinese and a core journal in Chinese science and technology, and it is included in domestic and international databases, such as Scopus, CA, CSCD, CNKI, and Wanfang. Opto-Electronic Engineering is a peer-reviewed journal with subject areas including not only the basic disciplines of optics and electricity, but also engineering research and engineering applications. Optoelectronic Engineering mainly publishes scientific research progress, original results and reviews in the field of optoelectronics, and publishes related topics for hot issues and frontier subjects. The main directions of the journal include: - Optical design and optical engineering - Photovoltaic technology and applications - Lasers, optical fibres and communications - Optical materials and photonic devices - Optical Signal Processing