光学学报, 2019, 39 (4): 0406002, 网络出版: 2019-05-10
基于傅里叶变换的光纤陀螺测试环境自评估技术 下载: 749次
Self-Assessment Technique for Fiber Optic Gyroscope Test Environment Based on Fourier Transform
光纤光学 光纤陀螺 傅里叶变换 测试环境 自评估技术 fiber optics fiber optic gyroscope Fourier transform test environment self-assessment technique
摘要
提出了一种基于傅里叶变换的光纤陀螺(FOG)测试环境自评估技术。测试结果表明,FOG零偏稳定性由环境3中的0.0015 (°)/h(100 s, 1σ)(数据100 s平滑后的标准差)降低到环境4中的0.0019 (°)/h (100 s, 1σ);随机游走系数由环境3中的2.1565×10
-4 (°)/h
1/2降低到环境4中的2.8876×10
-4 (°)/h
1/2。对另一只脉冲输出的陀螺进行了不同环境下的测试,零偏稳定性由环境3中的0.0013 (°)/h (100 s, 1σ)降低到环境4中的0.0021 (°)/h (100 s, 1σ)。通过两只陀螺的实验,验证了所提自评估技术的有效性,为高精度FOG的精度测试提供了指导。
Abstract
A self-assessment technique based on Fourier transform is presented to evaluate test environment of fiber optic gyroscope (FOG). Test results show that the zero bias stability of FOG is decreased to 0.0019 (°)/h (100 s, 1σ, that means the standard deviation after 100 s smoothing) in environment 4 from 0.0015 (°)/h (100 s, 1σ) in environment 3, and random walk coefficient is decreased to 2.8876×10
-4 (°)/h
1/2 in environment 4 from 2.1565×10
-4 (°)/h
1/2 in environment 3. Another FOG with pulse output is tested under different environments, whose zero bias stability is decreased to 0.0021 (°)/h (100 s, 1σ) in environment 4 from 0.0013 (°)/h (100 s, 1σ) in environment 3. The experiments of two FOGs demonstrate that the proposed self-assessment technique is effective, which provides guidance for the precision test of high precision FOG.
刘元元, 杨永斌, 冯文帅, 于海成. 基于傅里叶变换的光纤陀螺测试环境自评估技术[J]. 光学学报, 2019, 39(4): 0406002. Yuanyuan Liu, Yongbin Yang, Wenshuai Feng, Haicheng Yu. Self-Assessment Technique for Fiber Optic Gyroscope Test Environment Based on Fourier Transform[J]. Acta Optica Sinica, 2019, 39(4): 0406002.