Bilinear interpolation compensation model for scale factor of high-dynamic range FOG

被引：0
|
作者：
Yao J. [1 ]
Wang L. [1 ]
Chen X. [1 ]
Wang J. [2 ]
Liu C. [1 ]
机构：
[1] College of Optical Science and Engineering, Zhejiang University, Hangzhou
[2] Shanghai Institute of Spaceflight Control Technology, Shanghai
来源：
Chen, Xingfan (mycotty@zju.edu.cn) | 2018年 / Editorial Department of Journal of Chinese Inertial Technology卷 / 26期
关键词：
Bilinear interpolation; Compensation model; Fiber-optic gyroscope; High-dynamic range; Scale factor;
D O I：
10.13695/j.cnki.12-1222/o3.2018.03.020
中图分类号：
学科分类号：
摘要：
The temperature characteristics and nonlinearity of scale factor of high-dynamic range fiber-optic gyroscope (FOG) are important factors affecting the FOG's accuracy and require being modeled and compensated in high-grade applications. The scale factor error of the high-dynamic range FOG is analyzed, which show that the environmental temperature and the input angular rate are the main factors affecting the scale factor error. A compensation model based on bilinear interpolation is established to compensate the temperature characteristics and nonlinearity of the scale factor. Experiment results show that the scale factor error is reduced by two orders of magnitude, from 1.3×10-3 to 5×10-6, which verifies the effectiveness of the compensation model. The proposed compensation algorithm has low complexity and is easy to implement. © 2018, Editorial Department of Journal of Chinese Inertial Technology. All right reserved.
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页码：400 / 404
页数：4
相关论文
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